Arcam C31 Pre Amplifier Service Manual

Service

Manual

Issue 1.0

C30 Pre-AmpliÞ er

Contents List

!

Circuit description

!

Circuit diagrams

o

L958AY power supply board o

L965AY pre-amp board o

L928AY display board o

L870AY phono board o

L955AY multi-channel board

!

Transformers

o

L923TX – 115/230VAC toroidal o

L922TX – 100VAC toroidal o

L907TX – 100VAC frame

!

Exploded view diagram

!

Mechanical & packing parts list

!

Circuit board silk screen & parts list

o

L928AY display board o

L955AY multi-channel board o

L958AY power supply board o

L965AY pre-amp board o

L870AY phono board

C30 preamplifier circuit description.

Introduction

The C30 pre-amplifier uses pre-amp input switching/control and display boards that are very similar in design to the boards used in both the Diva A85/A90 and Fmj A32

integrated amplifiers and as such you may already be familiar with the layout and topologies of these boards. The C30 boasts a very much over-engineered power supply and output stage that is designed to bring the very best out of the existing Pre-amp input switching board.

The main PCB L958AY also contains output buffers for the unbalanced outputs to drive long cables and balanced line drivers. A headphone amplifier is included to drive low impedance headphones down to 32 Ohm.

For description of the pre-amplifier switching and control board see the section...

Power supply.

The mains input comes in via SKT1. Two Y

caps return common mode noise to the chassis ground and an X cap reduces any single ended noise. The 1M5 resistor following this is in place to discharge the capacitors when the unit is turned off.

The mains selector switch, which follows the resistor, changes the configuration of the transformer windings from series for 230V to parallel for 115V. Tx1 is a standby transformer it powers the microcontroller at all times so that the unit can be put into and out of standby. To reduce voltage losses after this transformer, low forward drop diodes are used. A low drop out regulator follows to create the 4.5v(D) supply; this supply powers the micro and digital circuits.

The primary of the Toroid supply transformer

Tx2 is connected to CON3 and the power to this is switched on and off by the relay RLY1.

The transformer has a number of secondary outputs and we use separate taps and bridge rectifiers networks followed by bulk capacitors to smooth the ripple. The voltages generated are +24V and -24V for the main analogue supplies, +46V for the HT supply to the VFD, and +18V, which is used to power the trigger output. The smoothed +/- 24V then goes through regulators REG 2 and

REG 5 to create +/- 18V this is passed the pre-amplifier PCB via CON4. Another set of regulators REG 3 and REG 6 follow taking the 18V and creating a +/-15V supply that is available for add on modules such as the 7.1 channel input board. A 5v supply is derived via regulator REG 4 from the 18V to run the headphone amplifier.

Mains detect.

A mains present detector runs from the standby transformer, this detects the loss of mains using a peak hold circuit based around

D7/TR1/DZ1 and TR2. If the power is lost this piece of circuitry sends a flag to the microcontroller so it can mute the outputs and shut down the unit. See Fig 1 for notes on protection modes.

12v trigger and RC5 receiver.

The trigger output on SKT2 is driven through

TR4 to provide a current limited supply at around 13V.

IC1 A and B are used to demodulate incoming RC5 from socket SKT2. IC1A is a band-pass filter centred on 36KHz. This is followed by a peak detector circuit that demodulates the incoming signal.

Fig 1. Protection and mute mode and measurements.

Prot line Measured at. Working reading

AC present Resistor R12

Mute* Con 8 Pin 5

+4.5v

+4.5v

R5 point P18

.7v

Trigger ResistorR10 point P54

+1.8v

Pre-amp input card.

Introduction.

The pre-amp stage is a high-performance,

DC coupled design with microprocessor control of input select, two independent tape loops, electronic volume control and tone bypass.

It features a discrete power supply and lownoise linear circuitry to obtain exceptionally low distortion and noise performance results.

Power supply stage

The secondary transformer output windings from the main toroid transformer are connected to SK300. The A.C voltage is rectified and smoothed by D300, D301, D306,

D307 and C300, C301. The unregulated voltage should be around +/- 27 V obviously this is dependent on the A.C level at the mains inlet socket; F300 and F301 are the secondary A.C s.m fuses these are rated at

2A.

The voltage regulators are discrete emitter followers the +15 voltage stage is described below as the –15 v stage is effectively very similar.

Q300 and R300 act as a constant current source, supplying around 7mA into D310.

C302 and C314 reduce ripple and broadband noise on the zener diode. Q305 and Q306 form a complementary Darlington NPN transistor, which is configured as an emitter follower producing +15v at it’s output. C303 is to provide bulk charge storage and to reduce the AC output impedance of the power supply.

D302 prevents reverse bias of the supply during power down.

Z301 is a conventional LM317 type circuit to regulate the +15v rail down to +5v for the tone and volume control circuits.

Input switching

Each of the inputs has a pair of diodes to the

+/- 15v rails to prevent static spikes from causing damage to the CMOS multiplexors.

In addition, there is a simple resistorcapacitor filter with a corner frequency of approximately 340kHz to remove any unwanted high frequency interference from the signal. This uses high quality WIMA polypropylene capacitors for the best possible performance.

Z104 (left) and Z105 (right) are the main input multiplexers, which are configured in a

“virtual earth” unity gain arrangement with

Z115 and Z116. This is an inverting circuit topology and the phase is corrected by the inverting volume control.

Z115B (left) and Z116B (right) are the integrating servos, which remove any D.C coefficient from the Analogue input switching stages before the signal is passed onto the following stages, R180 and C147 (left) form a filter to remove any broadband noise from the servo output and to improve the speed response.

Z100 – Z103 are the Tape output selectors these are non-inverting and the outputs are again buffered by Z9 a/b and Z10 a/b before arriving at the two tape loop outputs.

Z106 is configured as a double pole changeover switch and is used to select the tone controls or direct by pass mode. (See below for more information).

Tone controls

The tone control stage is non-inverting and uses a gyrating bell filter for the Bass and a simple shelving filter for the high frequencies, the left channel only will be described.

The input is attenuated by –6dB and biased to a voltage of +2.5v D.C by C111, R113,

R112, R110, R111 and C110. This is so the signals fall within the 0 – 5v D.C required by the digital potentiometer Z108.

Z111B and its associated components form an active equivalent of a series resonant LCR circuit. This has an impedance minimum 5.4k at around 80.

The digital pots Z108D and Z108A control the bass and treble respectively, this accomplished by moving the wiper connected to the frequency-sensitive impedance between to non inverting and inverting terminals of Z112A, effectively changing the ratio of feedback boost and feed forward attenuation of the circuit at the desired frequencies, thus providing a EQ gain control that is on a logarithmic scale, with the use of a linear pot.

Z112B provides the 6dB of gain necessary to bring the nominal level of signal back to unity

C116 and C117 remove the 2.5VDC offset from the output to prevent click and bangs when the tone control are activated.

Z108 is controlled by a simple 3-wire serial interface from the microprocessor. Each of the digital lines has it’s own ground return these are terminated at the GND pin of the chip to minimize any electromagnetic interference.

Volume control

Z107 is a VSDVC electronic volume control

IC. It works in conjunction with external opamp Z117a/b by varying the feed-forward and feedback resistors in an inverting gain configuration, the volume control is driven by

3-wire data from the H8 micro on the display board – if the control receives no data it will remain in Audio mute mode.

Relay RLY100 shunts the output of the Opamps to ground at switch on – power down and when switching between inputs.

Audio output stages.

The Audio output stage contains the buffered, un-buffered and balanced outputs as well as the headphone driver.

The audio signal from the preamp PCB enters the board on CON100 and the direct signal goes straight to the output via the mute relays RlY100A and RLY101B. A buffered version of the signal is created by IC100 and

IC101. IC100 and IC101 are op-amps configured as unity gain non-inverting buffers.

The C30 also has a Balance XLR output stage that drives into the balanced line drivers IC103 and IC104. These line divers create a transformer-less balanced output.

Headphone Output.

The selected audio output signal is driven into the headphone driver IC102; this signal then passes through CON101 and CON102 to the headphone socket SKT101. The mute signal passes through the switch contacts in the headphone socket so when headphones are inserted the main outputs are relay muted.

Please note: this means that if the headphone sockets control contacts are faulty or damaged the unit will be permanently stuck in audio mute mode.

RC5 remote code assignment change.

The C30 has the ability to switch between

RC5 system code 16* and 19, we can achieve this by pressing and holding the

Phono/Aux – CD and AV – DVD buttons simultaneously the display will show.

RC5 System Code

16*

We can toggle the system code using the rotary encoder.

Display board

The display board is very similar in design to the board that has been used for many years in the A85 family of products inc FMJ A32 and as such those of you familiar with these products will know there way around this board, a full description follows.

The power supply rails for the display board are derived from the main board we should expect to see the below supplies in place (Fig

2.)

Fig 2 Display board power supply pins

Power supply

+ 5v D.C (micro)

Pin number of SK1

Pin 14

+ 5v D.C Pin 1

+ 46v D.C for VFD HT Pin 3

Please note: the H8 micro is very critical of the +5v supply and as such the unit may crash or fail to power up during use if the +5v supply drops below 4.5v.

H8 Microprocessor

The H8 micro at location Z1 is preprogrammed by Arcam using a flashprogramming module and cannot be reprogrammed in the field unless you have access to the appropriate hardware and software.

The H8 forms the heart of the C30 and takes on all major control functions including.

1. Control of the input switching.

2. Controls the action of the volume cont.

3. Monitors protection status and mute lines

A85/A90/A32 only.

4. Sends display information to the VFD.

5. Receives and decodes RC5 data.

6. Receives data from rear panel remote input.

7. Stores setting information via 24C02 Eprom.

At initial power up the H8 micro is reset by Z2 a DS1233 econo reset package.

The input switching information is driven out to the Pre-amp card via the 9 select lines that appear on Pins 14 – 22 of SK3.

The Volume control and tone control circuits are driven from the SDATA – SLOAD and

SCLK data lines from SK3.

The Mute status line has control over the pre-amp output relay at location RLY100; the mute is triggered during power up/down and between input selections and under Mute commands.

Within the C30 the DC prot, Therm, VI prot and SP1/SP2 control lines are all connected to Digital ground on the main board of the pre-amp as these are not required within this product.

The H8 drives the VFD via 4 Data lines that can be seen on R64 – R67 as DISPDAT,

DISPCLK, DISPBLK, DISPLAT these drive directly into the VFD.

Remote Data can be received by the C30 via the 3.5 mm Phono jack on the rear of the

Pre-amp and the previously described remote demodulator on the main board this demodulated RC5 arrives on the display board via Pin 3 of SK1 and goes into a common IR input pin of the H8 micro (pin 87) this pin is also used to pick the RC5 code up from the Display onboard remote receiver.

At power up the H8 reads all previously stored and last settings used by the amplifier from the e-eprom at location IC5 these will include the last input used and tape settings also tone control and input level settings, any changes to the set-up of the amplifier are sent to the e-eprom for future recall, at power down the H8 downloads it’s settings to the eeprom.

All indication LED’s are driven directly from the H8 micro, these LED’s are tagged onto the +5v rail via 10k current limiting resistors

Q1 and Q2 form a toggle between Green and

Red for the standby/power LED.

The volume control is driven from a Rotary encoder at location SW18 the toggle lines from the encoder arrive at the H8 as control lines Phase A and Phase B on Pins 93 and

94.

Multi channel input module (optional)

Introduction

The multi input module an optional expansion board that allows the existing Amp/Pre-amp to become part of a surround system when driven by a DVD/SACD player with Analogue surround outputs.

The board has two sets of 7.1 input (8 channels) these are labelled as MCH1 and

MCH2 and accept Left, Right, Centre, Left surround, Right surround, Left Back, Right back audio Information.

All input channel levels can be trimmed levels to allow for system balancing.

Put very simply this is an eight-channel preamplifier.

Power supply

The board is powered from the +/- 15v supply on the existing pre-amp board on board regulators REG100 and REG101 regulate these rails down to –5v and +5v respectively.

The digital sections of the circuit are powered by a single +5v rail this is isolated from the main 5v rail via inductor L100.

Capacitors C100, C101 and C105, C107 act as bulk charge stores to prevent current surges from affecting the main pre-amp stage power supply stages.

Micro Processor

The micro controller operates from a 4 Mhz crystal and is in control of all of the board’s function via its input/output ports.

The micro controller is reset on power up via

R/C network R101 and C120. The micro controller stays in reset condition for approximately 500ms this allows the host micro controller (H8 Z1 on display board) to initialize and for the power supplies to settle.

The Host micro communicates with the onboard micro via CON 101. Three lines are used for communication these are seen on the circuit diagram as PB0, receive from

ExpBrd and Transmit to ExpBrd.

When the host is communicating with the onboard micro controller PB0 will be driven low, otherwise the Data sent will be ignored.

Input switching

The input allow for the signal routing of the eight channels from either of the inputs these are MCH1 and MCH2, select lines S1-S2-S3 are used to select each bank of inputs this inputs stage utilizes 6 x 74HCT4053 multiplexers you will notice that IC204 and

IC205 only utilize the S1 and S2 select channels as this input switch only deals with two channels (Back left and Back right).

Please note: The software will only allow one set of inputs to be selected at any one time.

The outputs of the input multiplexers drive into a group of 8 line drive Op-Amps

(IC300-IC307) these are configured two pole integrating D.C servo before reaching the

Volume control stages.

Volume control

Volume control is performed by two channel

Burr-Brown PGA2310 volume control chips.

The gain is under micro control with steps of

0.5dB.

All volume control chips share Data, Clock and Mute control but have Chip select lines that are grouped in the following way Front

Right, Front Left, Centre and Sub share the same select line, and the remaining channels share a chip select line (Surround right and

Left, Back right and Left). The volume of each channel can be controlled individually

“trimmed”.

If a loud clicking is heard on a individual channel whilst adjusting the volume it is probably the input stage that is at fault and not the volume control chip itself, the input stage should prevent D.C levels form entering the volume control.

Output driver stage

The output driver stage consists of four

OPA2134 dual channel Op-Amps (IC400-

IC403) each output for instance Front left channel takes one channel of the op-amp.

The front left and front right channels are driven down into the Pre-amp board via Pins

1 and 2 of connector Con400 and is fed into the input switches of the Pre-amp boards multiplex on Pin 9 from this point the signal is dealt with as a normal signal input into the

Pre-amp.

Please note: the left and right signals are seen on the L937 pre-amp card circuit diagrams as module left and module right.

The Remaining channels are rail clamped to remove any over-voltage spikes from the rails and to prevent damage to ancillary equipment using diode packages D400 – D405.

Each output has a mute relay that when engaged shunts the output to ground at power up and power down preventing any spurious D.C levels from leaving the card.

Simplified Block Diagram

8

6

Buffer

8

2

6

Volume

Volume

6

Buffer

2

Buffer

2

2

Buffer

Micro controller

From Host micro controller

Mute

Centre, Sub, Surround

L+R, Back L+R out

Front Left and Right to host.

Phono stage

The Phono board is a simple single stage

RIAA amplifier. It consists of two channels of high gain amplification, and switching between moving magnet (MM) and moving coil (MC) settings.

PSU:

The unit derives its ±15V regulated rails from the unit it is fitted into with only local decoupling capacitors on board.

Interface:

The unit connects to the host unit via a 8 way connector:

Amplifier:

The left channel has designators beginning with 100, and the right with 200. For the purposes of this description the left channel will be described, as the right channel the same in all respects.

The amplifier is a small signal class A voltage feedback amplifier with switchable gain. The input consists of an actively loaded differential pair of very low noise PNP transistors (TR106, 107). These transistors are very specific and should only be replaced with identical parts with the E grade high gain. TR100 & TR101 form a current source for the pair, which sets the quiescent current for the entire amplifier. The active load consists of TR110 & TR111, which forms part of a differential current mirror with TR112,

113 & 114. This differential stage also has an active load (TR102 & TR103) to keep gain to a maximum.

Both of these differential stages are designed to have as much gain as possible to enable the single stage design. The RIAA response is achieved in the feedback network:

C101,110,111,112,119,120,&R115,112.

C115 is used to correct between MM & MC gains as the amplifier is non-inverting.

SW100 switches between MM & MC. Two poles of the switch change between the different loading required for each type of cartridge: R108 & C109 for MM, and added inparallel for MC R104 & C108. The other two poles change the feedback resistor value to alter the gain. MM: R105 and in parallel for MC R123.

The DC offset is controlled by a non-inverting servo built around IC100. The amount of servo current is different for each gain setting via R111 (MM) & R124 (MC) so that the low frequency high pass point remains the same for both settings. However the high pass point for the circuit is set by C113. This gives a warp filter, stops DC startup thumps from upsetting DC coupled circuitry and an approximation of the RIAA/IEC curve (-2dB

@ 20Hz).

The output is class A buffered by a dual mirror follower (TR104, 105, 108, 109). The quiescent current is set up by D100 and

R118, 119.

Closed loop stability is achieved with C116,

117 giving symmetrical slewing capability.

PSU and Control Circuit

L958CT1_1.4_PSU and Control New Demod.Sch

Audio Circuit

L958CT2_1.4_Audio1.Sch

FD1

FD2

FD3

FD4

TOOL1

TOOL2

TOOL3

TOOL4

ITEM

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

ITEM1

ITEM2

ITEM3

ITEM4

ITEM6

ITEM7

ITEM8

ITEM9

ITEM10

ITEM11

ITEM12

ITEM13

ITEM14

ITEM15

ITEM16

ITEM17

QTY PART No.

DESCRIPTION

L958PB

F006

F006

F006

F006

F006

E802AP

E826AP

E826AP

E826AP

E826AP

F022

F022

F022

F022

8M101

Blank PCB C30 Preamp PSU

Clip For SW Profile Heatsink





Pad Damping 15x6x3MM Sorbothane

Pad Damping 7.5x6x3 Sorbothane




Fuseholder Cover For 20mm Fuseholder




Earth Lead Assy 75MM

NOTES

Clip for HS1

Clip for HS2

Clip for HS3

Clip for HS5

Clip for HS6

PIECE SHARED BETWEEN C21, C22 (SEE ASSY DWG)

PLACE ON RLY100

PLACE ON RLY101

PLACE ON RLY102

PLACE ON RLY103

SOLDER TO TAB ON SKT1

FIX1

Dia 3.2mm

FIX8

FIX2

Dia 3.2mm

FIX9

FIX3

1

0V CHS

Dia 3.5mm

FIX10

FIX4

Dia 3.5mm

FIX11

1

FIX5

Dia 3.5mm

FIX12

FIX6 FIX7

Dia 3.5mm

FIX13

Dia 3.5mm

Dia 3.5mm

Dia 3.5mm

Dia 3.5mm

Dia 3.5mm

Dia 3.5mm

Dia 3.5mm

DRAWING TITLE

C30 Preamp

23425

A & R Cambridge Ltd.

Pembroke Avenue

Waterbeach

Cambridge CB5 9PB

03_E215 KAL 15/07/03

Filename:

Notes:

Contact Engineer:

L958CT0_1.4_Top Level.Prj

Kevin Lamb

03_E191

03_E186

03_E172

AJD

KAL

AJD

27/06/03

21/06/03

06/06/03

03_E119

ECO No.

Contact Tel: (01223) 203200

MJT

INITIALS

Printed:

17/04/03

DATE

15-Jul-2003

R1 changed to VR37 1.4

RC5 remote bus demod fix

Renumbered Sorbothane

Mods following listening test. Sorbothane and some caps

Production release

DESCRIPTION OF CHANGE

Sheet 1 of 1 DRAWING NO.

L958CT0

1.3

1.2

1.1

1.0

ISSUE

SH1

1

EMC Shield

P1

SKT1

BULGIN

PX0580

N

E

L

P2

P3

P35

CON2

MOLEX

44472

C19

470N

100V

MKS2

P39

P36

FS3 T250mA S504 P72

FHLDR3

20mm HLDR

P75

CON1

GREEN

1

WAGO

256

P73

P22

C17

470N

100V

MKS2

P23

P38

P37

FS4 T250mA S504

P74

FHLDR4

20mm HLDR

C1

3N3

250V

CER EARTH

C2

3N3

250V

CER

D17

SBYV27-200

DO-15

D18

SBYV27-200

DO-15

D19

SBYV27-200

DO-15

D23

SBYV27-200

DO-15

DBR1

W02

DBR2

W02

+18V(D)

P40

P41

P76

P77

C5

220N

275V

PP X2

R1

1M5

0W5

VR37

D20

SBYV27-200

DO-15

D21

SBYV27-200

DO-15

NEUTRAL

AGND

PSUGND(A)

DGND

D22

SBYV27-200

DO-15

D24

SBYV27-200

DO-15

+46V(D)

DGND

+18V(D)

DGND

C38

100UF

100V

YK

C43

1000UF

35V

YK

C21

10,000UF

50V

USR

P25

P26

C22

10,000UF

50V

USR

P42

C18

470N

100V

MKS2

SP1

PSUGND(A)

PSUGND(A)

PSUGND(A)

C20

470N

100V

MKS2

-24V7(A)

Voltage specific transformer:

Refer to parent BoM for which part to

use for which voltage.

LIVE

P24

115V 230V

SW1

18-000-0019

P4

FHLDR1

20mm HLDR

FS1 T2A S506

FS2 T2A S506

FHLDR2

20mm HLDR

+24V7(A)

Voltage specific fuses:

FS1 & FS2 are T2A

type for 230V / 115V

only. Parent BoM

indicates which type

for which voltage.

P43

PSUGND(A)

MAINS WIRING AND AUXILIARY SUPPLY

P8

1

TX1

Open Frame

5

P11

115V 9V

RLY1B

Takamisawa

F1CA005V

RLY1A

F1CA005V

Takamisawa

P5

P9

P6

P7

P27

2

3

115V

4

6

7

FS5

T500mA

R452

9V

C3

3N3

250V

CER

8

P10

P12

C4

3N3

250V

P28

P29

CER

P30

5

6

4

CON3

MOLEX

44472

1

2

3

P13

C6

100N

50V

0805

+24V7(A)

HS2A

SW50-2

8.8C/W

D8

BAS16

SOT-323

C25

100N

50V

0805

REG2

LM317T

TO-220

C26

100N

50V

0805

-24V7(A)

HS5A

SW50-2

8.8C/W

P31

C35

22UF

20V

OSCON

C34

22UF

20V

OSCON

P44

REG5

LM337T

TO-220

D12

BAS16

SOT-323

R17

68R

0W125

0805

R19

100R

0W125

0805

R7

2K2

0W125

0805

R6

2K2

0W125

0805

R22

100R

0W125

0805

R18

68R

0W125

0805

+18V(A)

D9

BAS16

SOT-323

D13

BAS16

SOT-323

-18V(A)

D1

1N5819

DO-41

D2

1N5819

DO-41

P32

C10

100UF

20V

OSCON

CON4

MOLEX

44472

SP2 GND_N1

GND_Q1

C12

100UF

20V

OSCON

P45

D3

1N5819

DO-41

D4

1N5819

DO-41

D5

BAS16

SOT-323 MAINS PRESENT DETECT

HS1A

SW50-2

8.8C/W

+4V5(D) +4V5(D)

P14

C9

3300UF

25V

YK

P15

PSUGND(A)

C7

100N

50V

0805

REG1

TO-220

P16

LM1086CT-ADJ

R3

270R

0W125

0805

P17

R36

6K8

0W125

0805

RLY1C

Takamisawa

F1CA005V

D6

BAS16

SOT-323

R11

10K

0W125

0805

R4

680R

0W125

0805

C8

100N

50V

0805

DGND

C14

1000UF

10V

YK P19

P18 R5

DGND

TR3

FMMT497

2K2

0W125

0805

SOT-23

P20

D7

BAS16

SOT-323

HS4A

C23

100N

50V

0805

HS3A

SW50-2

8.8C/W

D10

BAS16

SOT-323

PF752

23.7C/W

D25

BAS16

SOT-323

+5

REG4

L7805CV

TO-220

+15V(A)

P78

C24

100N

50V

0805

PSUGND(A)

+5V(A)

C33

100UF

25V

YK

PREAMP AUDIO REGULATORS

P34

REG3

LM317T

TO-220

C28

100N

50V

0805

P33

C37

22UF

20V

OSCON

R20

100R

0W125

0805

R21

100R

0W125

0805

R9

2K2

0W125

0805

D11

BAS16

SOT-323

C11

100UF

20V

OSCON

CON5

3

4

1

2

SP3

MOLEX

6373

GND_N2

GND_Q2

CON6

3

4

1

2

MOLEX

6373

CON7

3

4

1

2

MOLEX

6373

P49

P48

C27

100N

50V

0805

C36

22UF

20V

OSCON

P46

R8

2K2

0W125

0805

REG6

LM337T

TO-220

R23

100R

0W125

0805

R24

100R

0W125

0805

D15

BAS16

SOT-323

C13

100UF

20V

OSCON

P47

-15V(A)

HS6A

SW50-2

8.8C/W

D14

BAS16

SOT-323

TR1

BC849B

SOT-23

+4V5(D)

R14

3K3

0W125

0805

P21

DZ1

P79

C15

10UF

50V

YK

BZX84C

2V7

SOT-23

DGND

R12

10K

0W125

0805

TR2

BC849B

SOT-23

SKT2

HOSIDEN

HSJ

C44

100N

50V

0805

EMCGND3

P52

NC1

NC2

TR4

BD179

TO-126

R26

3K3

0W125

0805

P53

TR5

FMMT497

SOT-23

DZ2

BZX84C

15V

SOT-23

R25

10R

0W125

0805

P71

R2

+4V5(D)

P50

R39

470R

0W125

0805

R1000

MF

1K0

0W25

DGND

R37

0R0

0W125

0805

C29

100N

50V

0805

0V CHS

R10

2K2 0W125

0805

0R0

0W125

0805

OPTO1

4N35

DIP-6

NF

R38

P51 0R0

0W125

0805

NF

C39

100P

100V

0805

L1

70R@100MHz

C16

100N

50V

0805

C30

100N

50V

0805

P54

NF

DZ3

BZX84C

3V9

SOT-23

DGND

R29

270K

0W125

0805

P58

R30

1K2

0W125

0805

+4V5(D)

P55

C31

100N

50V

0805

RC5 REMOTE BUS DEMOD

0V CHS

R1000 is hand fit

0V CHS it is fitted between pins 1 and 4 of OPTO 1

C40 C41

150P 100V

0805

150P 100V

0805

R32

680K 0W125

0805

R15

3K3

0W125

0805

P56

P57

R31

1K8

0W125

0805

C32

100N

50V

0805

2

3

IC1A

1

P59

TS972ID

SO-8

R13

10K

0W125

0805

+4V5(D)

P60

D16

BAS16

SOT-323

C42

680P

100V

0805

P61

R33

470K

0W125

0805

R16

3K3

0W125

0805

R28

22K

0W125

0805

P62

6

IC1B

5

7

P80

R34

1K5

0W125

0805

TS972ID

SO-8

+4V5(D)

R35

4K7

0W125

0805

P63

TR6

MMUN2211LT1

SOT-23

P64

P65

P67

P66

P68

P69

+46V(D)

DGND

REMOTE

TRIGGER

AC PRESENT

MUTE*

STANDBY*

P70

+4V5(D)

5

4

3

2

1

9

8

7

6

14

13

12

11

10

CON8

THERMPROT

DCPROT

VIPROT

SPKR2 ON

SPKR1 ON

R27

10R

0W125

0805

DGND MOLEX

5229-NCPB

TO DISPLAY CARD

DRAWING TITLE

C30 Preamp

23425


Pembroke Avenue

Waterbeach


Filename:

Notes:

03_E215

03_E191

L958CT1_1.4_PSU and Control New Demod.Sch

03_E186

03_E172

Contact Engineer: Kevin Lamb

KAL

AJD

KAL

AJD

15/07/03

27/06/03

21/06/03

06/06/03

Contact Tel:

03_E119

ECO No.

(01223) 203200

MJT

INITIALS

Printed:

17/04/03

DATE

15-Jul-2003

R1 changed to VR37


1.4

1.3



Production release



L958CT1

1.2

1.1

1.0

ISSUE

CON100

1

2

3

4

L_AUDIO

R_AUDIO

AMP

CT

P107

P108

P109

PAGND

MUTE*

R118

10K

0W125

0805

R119

10K

0W125

0805

PAGND PAGND

+15V(A)

C100

100UF

25V

CFNE

AGND

P101

C104

10N

100V

MKS2

PAGND PAGND

C108

470P

100V

0805

R100

P103

3

2

100R

0W125

0805

P104

AGND

-15V(A)

+15V(A)

C101

100UF

25V

CFNE

P102

P110

PAGND

C105

10N

100V

MKS2

PAGND

C109

470P

100V

0805

C102

100UF

25V

CFNE

AGND

C106

10N

100V

MKS2

PAGND PAGND

R102

100R

0W125

0805

C110

470P

100V

0805

P111

3

2

P112

AGND PAGND

C103

100UF

25V

CFNE P118

-15V(A)

C107

10N

100V

MKS2

PAGND

C111

470P

100V

0805

6

IC100

AD797AR

SO-8

P105

R104

47R 0W125

0805

R101

100R

0W125

0805

6

IC101

AD797AR

SO-8

P113

R105

47R 0W125

0805

R103

100R

0W125

0805

PAGND

L100

70R@100MHz

+15V(A)

D100

BAV99

SOT-23

+15V(A)

D101

BAV99

SOT-23

+15V(A)

D102

BAV99

SOT-23

+15V(A)

D103

BAV99

SOT-23

-15V(A)

RLY100A

NEC

EB2-12NU

-15V(A)

RLY100B

NEC

EB2-12NU

-15V(A)

RLY101A

NEC

EB2-12NU

-15V(A)

RLY101B

NEC

EB2-12NU C113

100P

100V

0805

C114

100P

100V

0805

P106

P114

P115

P116

C115

100P

100V

0805

EMCGND1

C116

100P

100V

0805

PREAMP AUDIO OUTPUTS

BUFFERED DIRECT

REAR PANEL VIEW

SKT100

KUNMING

GOLD

LEFT

RIGHT

P117

PAGND PAGND

C117

10N

100V

0805

0V CHS

R125

10R

0W125

0805

L_AUDIO

+18V(D)

+15V(A) +15V(A) +15V(A) +15V(A)

+15V(A)

D105

BAV99

SOT-23

D106

BAV99

SOT-23 +15V(A)

D107

BAV99

SOT-23

D108

BAV99

SOT-23

RLY100C

NEC

EB2-12NU

RLY101C

NEC

EB2-12NU

RLY102C

NEC

EB2-12NU

RLY103C

NEC

EB2-12NU

D104

BAS16

SOT-323

P100

AGND

AGND

C126

100UF

25V

CFNE

R_AUDIO

C127

100UF

25V

CFNE

PAGND

PAGND

PAGND

C128

100N

50V

0805

4

VIN

3

GND

IC103

SNS+

7

P135

VO+

8

VO-

1

SNS-

2

P136

47R

R120

0W125

0805

R121

DRV135UA

SO-8

47R 0W125

0805

P137

P138

C129

100N

50V

0805

-15V(A)

C131

100P

100V

0805

C130

100P

100V

0805

-15V(A)

L101

P139

C132

100P

100V

0805

-15V(A)

CON103

Neutrik

NC3MBH-B

1

1

3

2

P140

C133

10N

100V

0805

2

RLY102A

NEC

EB2-12NU

RLY102B

NEC

EB2-12NU

PAGND

70R@100MHz

0V CHS

+5V(A)

HEADPHONE AMP

100mW 20-30 ohms

R108

P121

L_AUDIO

2R2

0W125

0805

P119

C118

470UF

25V

YK

AGND

R106

15K 0W125

0805

C112

100N

50V

0805

C119

R_AUDIO

R107

15K 0W125

0805

R116

100K

0W125

0805

P120

R117

100K

0W125

0805

1UF 50V YK

C120

1UF 50V YK

C125

10UF

50V

YK

C121 R109

33P

100V

0805

P122

10K

0W125

0805

2

P123

3

P124

6

C122

33P

100V

0805

R110

10K

0W125

0805 P133

PAGND

P132

P125

IC102

1

7

C123

220UF

16V

YK

LM4880M

SO-8 C124

220UF 16V YK

AGND

C134

100UF

25V

CFNE

AGND

C135

100UF

25V

CFNE

PAGND

PAGND

PAGND

C136

100N

50V

0805

4

VIN

3

GND

IC104

SNS+

7

P141

R122

P143

VO+

8

VO-

1

SNS-

2

P142

47R 0W125

0805

R123

DRV135UA

SO-8

47R 0W125

0805

P144

C137

100N

50V

0805

-15V(A)

C139

100P

100V

0805

C138

100P

100V

0805

-15V(A)

EMCGND2

C140

100P

100V

0805

CON104

Neutrik

NC3MBH-B

1

1

3

2

C141

10N

100V

0805

-15V(A)

2

RLY103A

NEC

EB2-12NU

RLY103B

NEC

EB2-12NU

0V CHS

P126

R111

47K

0W125

0805

R113

4R7

1W

CF

R112

47K

0W125

0805

P134

R114

4R7

1W

CF

P127

P128

MUTE*

HP_OUTL

HP_OUTR

P146

P145

CON101

4

5

6

1

2

3

AMP

CT

TR100

BD179

TO-126

HEADPHONE JACK PCB

CON102

AMP

CT

4

5

6

1

2

3

P130

P147

P129 P131

NCL

CL

2

3

1

CR

P148

NCR

L

R

SKT101

HOSIDEN

HLJ

DGND

R115

150R

0W125

0805

R124

150R

0W125

0805

DRAWING TITLE

C30 Preamp

23425


Pembroke Avenue

Waterbeach


Filename:

Notes:

L958CT2_1.4_Audio1.Sch


03_E215

03_E191

03_E186

03_E172

KAL

AJD

KAL

AJD

15/07/03

27/06/03

21/06/03

06/06/03

Contact Tel:

03_E119

ECO No.

(01223) 203200

MJT

INITIALS

Printed:

17/04/03

DATE

15-Jul-2003

R1 changed to VR37


1.4

1.3



Production release



L958CT2

1.2

1.1

1.0

ISSUE

Main signal path

L965C2_1.2.SCH

Power supply

L965C3_1.2.SCH

PCB1

PCB

L937PB_1

DRAWING TITLE

C30 Preamp PCB

ARCAM


Pembroke Avenue

Waterbeach


Filename:

Notes:


L965C1_1.2.PRJ

Kevin Lamb Contact Tel:

03_E291 MJT

03_E221 KAL

03_E156 KAL

ECO No.

INITIALS

(01223) 203243 Printed:

10/10/03

None to this sheet. Transistors Q301 & Q305 obsolete.

Replaced by 4B5171 and 4B1930 respectively

Added sorbothane, changed 470pF FKP2 and 100uF Oscon part no.

1.2

1.1

18/07/03

02/06/03 Assy created from L937, various capacitors and sorbothane changed 1.0

DATE DESCRIPTION OF CHANGE ISSUE

10-Oct-2003 Sheet 1 of 3 A4 DRAWING NO.

L965C1

+15V

+15V

D100

BAV99W DUAL SM -15V

0V_SIG

CD INPUT

SK2A

1

C100

1N0 SM

TUNER INPUT

+15V

+15V

SK2B

F

N

PHONO4G

CDL1

D101

D102

TUNL1

R100

R102

-15V

BAV99W DUAL SM

BAV99W DUAL SM

1K0 SM

-15V

CDL

CD L

1K0 SM

F

N

PHONO4G

R103

100K SM

CDR1

0V_SIG

R101

1K0 SM

0V_SIG

CDR

CD R

C101

470P FKP2

R104

100K SM

0V_SIG

TUNL

R105

100K SM

C102

470P FKP2

0V_SIG

TUNER L

C103

TUNR1

0V_SIG

R125

1K0 SM

0V_SIG

TUNR

TUNER R

+15V

-15V

470P FKP2

+15V

AUX L

CD L

TUNER L

AV L

DVD L C104

100N SM

C105

100N SM 0V_SIG

VCR IN L

MODULE L

+5V

-15V

C106

100N SM

C107

100N SM

TAP1

TAP2

0V_SIG

TAP0

TAPE0

TAPE1

TAPE2

0V_SIG

-15V

4

5

6

7

12

11

10

9

X0

X1

X2

X3

X4

X5

X6

X7

DG408DY

V+

13

D

8

+15V

R106

1M0 SM

TAPE 0

TAPE 1

TAPE 2

16

15

2

1

GND

V-

0V_SIG

AUX R

CD R

TUNER R

AV R

DVD R

0V_SIG

-15V

14

3

GND

V-

DG408DY

Z101

VCR IN R

MODULE R

+5V

7

12

11

10

9

4

5

6

X0

X1

X2

X3

X4

X5

X6

X7

TAPE 0

TAPE 1

TAPE 2

16

15

2

1

EN

A0

A1

A2

13

V+

D

8

+15V

R107

1M0 SM

0V_SIG

14

3

EN

A0

A1

A2

+15V -15V R128

100K SM

C122

470P FKP2

Z102

AV INPUT

+15V

SK3A

F

1

D106

BAV99W DUAL SM

D107

BAV99W DUAL SM

AVL1 R126

1K0 SM

0V_SIG

-15V

AVL

R129

AV L

100K SM

0V_SIG

C123

+15V

-15V

470P FKP2

C125

100N SM

C126

100N SM

0V_SIG

VCR01

VCR11

VCR21

AUX L

CD L

TUNER L

AV L

DVD L

TAPE IN L

MODULE L

+5V

VCR 0

VCR 1

VCR 2

16

15

2

1

7

12

11

10

9

4

5

6

14

3

X4

X5

X6

X7

X0

X1

X2

X3

EN

A0

A1

A2

GND

V-

13

V+

D

8

R131

1M0 SM

0V_SIG

N

C121

1N0 SM

PHONO4G

0V_SIG

+15V

AVR1

0V_SIG

D108

R127

1K0 SM

-15V

BAV99W DUAL SM

0V_SIG

AVR

R130

AV R

100K SM

C124

470P FKP2

+15V

AUX R

CD R

0V_SIG

-15V

TUNER R

AV R

DVD R

TAPE IN R

MODULE R

+5V

4

5

6

7

12

11

10

9

Z100

DG408DY

Z103

X0

X1

X2

X3

X4

X5

X6

X7

V+

13

D

8

+15V

R132

1M0 SM

+15V

D112

BAV99W DUAL SM

0V_SIG

-15V

0V_SIG

C127

100N SM

C128

100N SM

0V_SIG

VCR0

VCR1

VCR2

VCR 0

VCR 1

VCR 2

16

15

2

1

EN

A0

A1

A2

+15V

0V_SIG

14

3

-15V

GND

V-

DVD INPUT

SK3B

DVDL1

R156

1K0 SM

DVDL

DVD L 0V_SIG

-15V

DG408DY

F

N

PHONO4G

DVDR1

0V_SIG

R157

1K0 SM

R159

100K SM

0V_SIG

DVDR

DVD R

C140

470P FKP2

+15V

AUX L

CD L

TUNER L

AV L

DVD L

TAPE IN L

VCR IN L

MODULE L

R162

22K SM

R163

22K SM

R164

22K SM

R165

22K SM

R170

22K SM

R171

22K SM

R172

22K SM

R173

22K SM

+5V

12

11

10

9

4

5

6

7

Z104

X4

X5

X6

X7

X0

X1

X2

X3

V+

D

13

8

D113

-15V

BAV99W DUAL SM

R160

100K SM

0V_SIG

C141

470P FKP2

0V_SIG

C143

100N SM

C144

100N SM

LIST2

LIST0

LIST1

LISTEN 0

LISTEN 1

LISTEN 2

2

1

16

15

14

3

EN

A0

A1

A2

GND

V-

+15V

D114

BAV99W DUAL SM -15V

-15V

TAPE INPUT

C139

1N0 SM

0V_SIG

SK4A

F

N

PHONO4G

+15V

1

TAPEIL1

TAPEIR1

R158

1K0 SM

0V_SIG

R189

1K0 SM

TAPEIL

R161

TAPE IN L

100K SM

0V_SIG

-15V

TAPEIR

R192

TAPE IN R

100K SM

C142

470P FKP2

C161

0V_SIG

470P FKP2

+15V

-15V

C145

100N SM

C146

100N SM

AUX R

CD R

TUNER R

AV R

DVD R

TAPE IN R

VCR IN R

MODULE R

LISTEN0

LISTEN1

LISTEN2

R166

22K SM

0V_SIG

R174

22K SM

-15V

R175

22K SM

R167

22K SM

R176

22K SM

R168

22K SM

R177

22K SM

R169

22K SM

+5V

DG408DY

12

11

10

9

6

7

4

5

Z105

X4

X5

X6

X7

X0

X1

X2

X3

LISTEN 0

LISTEN 1

LISTEN 2

2

1

16

15

EN

A0

A1

A2

V+

D

14

3

GND

V-

13

8

+15V

3

2

5

6

3

2

5

6

C147

100N PE

0V_SIG

+15V

C167

100N PE

0V_SIG

Z109A

TL072 SM

Z109B

TL072 SM

Z110A

TL072 SM

Z110B

TL072 SM

2

3

2

3

C148

22P SM

R178

22K SM

Z115A

C149

22P SM

R179

22K SM

Z116A

+15V

1

+15V

7

+15V

1

+15V

7

1

R180

1

R199

C108

100P SM

C109

100P SM

C129

100P SM

C130

100P SM

OPA2134PA SM

100K SM

OPA2134PA SM

100K SM

D103

BAV99W DUAL SM

R108

47R SM

D104

R109

47R SM

D109

R133

47R SM

D110

R134

47R SM

Z115_1A

7

C150

470N PE

OPA2134PA SM

+15V

+

+

-15V

7

TAPE02

BAV99W DUAL SM

BAV99W DUAL SM

BAV99W DUAL SM

6

Z115B

5

C188

-15V

22U EL SP OS

C189

0V_SIG

22U EL SP OS

Z116_1A

C151

TAPEO1

0V_SIG

470N PE

VCRO1

0V_SIG

VCR02

6

Z116B

5

OPA2134PA SM

SK4B

F

N

F

N

0V_SIG

TAPE OUTPUT

PHONO4G

-15V

-15V

VCR OUTPUT

SK5B

PHONO4G

-15V

R183

1M0 SM

R184

1M0 SM

0V_SIG

-15V

TONE*

C152

100N SM

0V_SIG

TONE*

D115

BAV99W DUAL SM

0V_SIG

-15V

DG408DY

0V_SIG

+15V1

+15V

VCR INPUT

+15V

SK5A

F

D116

BAV99W DUAL SM

1

VCRIL1

N

C160

1N0 SM

PHONO4G

0V_SIG

VCRIR1

R190

1K0 SM

0V_SIG

R191

1K0 SM

-15V

VCRIL

R193

100K SM

0V_SIG

VCRIR

VCR IN L

C162

470P FKP2

VCR IN R

AUX INPUT

+15V

SK6

F

1

D118

BAV99W DUAL SM

AUXIL1

N

C164

1N0 SM

PHONO2G

0V_SIG

AUXIR1

R195

1K0 SM

0V_SIG

R196

1K0 SM

-15V

AUXL

R197

AUX L

100K SM

0V_SIG

AUXR

AUX R

SK103

1

2

3

6

7

4

5

8

AMPCT8

C165

AUX R

AUX L

0V_SIG

470P FKP2

AUXR1

AUXL1

-15V1

0V_HF

-15V

Z109C

TL072 SM

-15V

Z113C

TL072 SM

C168

100N SM

-15V2

0V_SIG

C169

100N SM

C170

100N SM

Z110C

TL072 SM

Z114C

TL072 SM

C172

100N SM

0V_SIG

C173

100N SM

C174

100N SM

Z111C

TL072 SM

Z115C

C176

1

2

3

4

5

6

7

8

100U EL

0V_SIG

100U EL

0V_SIG

Z106

SEL1

D1

S1

V-

GND

S4

D4

SEL4

DG413DY

+15V2

100N SM

0V_SIG

C177

100N SM

C178

100N SM

+

+

C110

C131

+5V

+5V

SEL2

D2

S2

14

V+

VL

S3

11

D3

SEL3

+15V

Z112C

TL072 SM

Z116C

R110

2K2 SM

R111

R135

R136

16

15

13

12

10

9

R112

22K SM

2K2 SM

2K2 SM

R137

22K SM

2K2 SM

TONE*

+5V

C180

100N SM

0V_SIG

C181

100N SM

C182

100N SM

Z111_3

R113

22K SM

2

+ C111

Z115_1B

+ C132

Z116_1B

/TONE

TONE*

C154

22U EL SP OS

+15V

+15V

C153

0V_SIG

Z117C

D105

BAV99W DUAL SM

3

Z111A

TL072 SM

1

Z111_1

R114

22K SM

10U CERAFINE

+

Z107_4

100N SM

Z107_13

0V_SIG

C184

Z111_7

10U CERAFINE

Z113_7

0V_SDATA

0V_SLOAD

0V_SCLK

100N SM

R200

R201

R202

7

Z111B

TL072 SM

7

Z113B

TL072 SM

2R2 SM

2R2 SM

2R2 SM

C112

470N PE

C192

470N PE

+5V

Z113_3

R138

22K SM

2

3

Z113A

TL072 SM

1

Z113_1

R139

22K SM

C133

470N PE

C193

470N PE

5

6

0V_SIG

Z112_3

Z108D

17

Z108_19

C113

470N PE

R115

2K7 SM

R116

2K7 SM

D111

BAV99W DUAL SM

5

6

C186

100N SM

Z108B

7

+5V

DRAWING TITLE

C134

R181

0V_SIG

Z114_3

Z108_3

470N PE

R140

2K7 SM

R141

2K7 SM

0V_SIG

10K SM

0V_SIG

Z108A

14

4

C114

R142

5K6 SM

+ C187

10U EL

D120

C115

22P SM

CFKP2 63V 2N2

R117

5K6 SM

0V_SIG

Z108C

3

2

C135

3

2

CFKP2 63V 2N2

+15V

Z112A

TL072 SM

R118

22K SM

Z114A

TL072 SM

C136

22P SM

R143

22K SM

C30 Preamp PCB

1

1

BAS16W SM

Z112_1

5

Z112B

TL072 SM

7

Z112_7

6

Z114B

Z114_1

5

TL072 SM

7

Z114_7

-

+

0V_D

6

Q100

BC849B

R145

0V_SIG

RLY100C

RLY DPDT 5V SM

R203

4K7 SM

R119

22K SM

R120

22K SM

+ C116

10U CERAFINE

0V_SIG

22K SM

+ C137

C138

C117

R144

10U CERAFINE

22K SM

10U CERAFINE

MUTE*

Z106_14

10U CERAFINE

R121

22K SM

Z106_11

R146

22K SM

SCLK

SDATA

TONEID

+5V

C155

100N SM

4

5

LIN

+

C190

22U EL SP OS

R185

22R SM

Z107_1

C156

100N SM

+ C157

22U EL SP OS

-15V

0V_SIG

+

0V_SIG

LFO

3

C191 0V_SIG

22U EL SP OS

C158

22P SM

2

Z117A

1

R186

3

47R SM

LGND

LMO

RFO

2

14

0V_SIG

OPA2134PA SM

SK102_3

+15V

D121

D122

BAV99W DUAL SM

BAV99W DUAL SM

SK102_1

0V_SIG

13

RIN RMO

15 6

Z117B

C159

22P SM

7

R187

12 5

RLY100A RLY100B

RGND

47R SM

-15V

3

4

SK102

1

2

AMPCT4

TO POWER AMP I/P

RLY DPDT 5V SM RLY DPDT 5V SM

R182

100R SM

Z107

0V_SIG

VSDVC

OPA2134PA SM

+5V

0V_SIG

SCLK

SDATA

TONEID

2R2 SM

0V_TONEID

R123

2R2 SM

VCR 0

VCR 1

VCR 2

TAPE 0

TAPE 1

TAPE 2

TONE*

TONEID

0V_SDATA

13

12

9

IC DS1844

R122

0V_SDATA

0V_D

0V_SCLK

LISTEN 0

LISTEN 1

LISTEN 2

0V_TONEID

R124

2R2 SM

MUTE*

SDATA

0V_SLOAD

0V_SIG

CLK

DIN

RST

+5V

R147

22K SM

R148

22K SM

R149

22K SM

R150

22K SM

R151

22K SM

R152

22K SM

R153

22K SM

R154

22K SM

R155

22K SM

MODULE L

MODULE R

R188

Z108E

PS

R/W

DOUT

SLOAD

0V_SCLK

AUX L

AUX R

CD L

CD R

TUNER R

AV L

AV R

DVD L

DVD R

1

8

11

R204

10K SM

C119

10N SM

0V_SIG

SCLK

TUNER L

TAPE IN L

TAPE IN R

VCR IN L

VCR IN R

10K SM

C118

100N SM

0V_MODULE

ITEM1

E826AP

ITEM2

E826AP

+ C120

10U EL

13

14

15

16

9

10

7

8

11

12

17

18

19

20

21

22

3

4

5

6

SK100

1

2

FFC22V1MM

13

14

15

16

17

18

9

10

11

12

7

8

5

6

SK101

1

2

3

4

25

26

27

28

19

20

21

22

23

24

29

30

FFC30V SM

+15V -15V

D117

BAV99W DUAL SM

R194

100K SM

C163

470P FKP2

+15V -15V

D119

BAV99W DUAL SM

R198

100K SM

C166

470P FKP2

0V_SIG

C171

100N SM

0V_SIG

C175

100N SM

0V_SIG

C179

100N SM

0V_SIG

C183

100N SM

0V_SIG

C185

100N SM

ARCAM

Filename:

Notes:

L965C2_1.2.SCH

03_E291

03_E221

MJT

KAL

10/10/03

18/07/03

None to this sheet. Transistors Q301 & Q305 obsolete.


1.2


1.1

0V_SIG 0V_SIG -15V


Pembroke Avenue

Waterbeach


03_E156

ECO No.

KAL

INITIALS


DATE ISSUE

10-Oct-2003


Sheet 2 of 3 A2 DRAWING NO.

L965C2

Contact Engineer: Kevin Lamb Contact Tel: (01223) 203243 Printed:

SK300

MOLEXPWR4

F300

T2A SM

AC1

C307

470N PE

F301

T2A SM

AC2

D300

S1D

D306

S1D

C308

100N SM

C309

100N SM

D301

S1D

UR+

D307

S1D

UR-

+ C300

1000u 35V

+ C310

1000u 35V

D302

BAS16W SM

Q305

2SA1930

Q306

BC846B

+15V

+15V3

Q300

J112

R300

330R SM D310+

C314

100N PE

+

C302

22U EL SP OS

D310

15V 350MW SM

+

C303

100U EL SA OS

C304

I

Z301

LM317T

Vin

100N SM

D304

BAS16W SM

Vout

O

D305

BAS16W SM

R303

470R SM

+5V

+5V

+3.75V

R302

1K2 SM

R307

220R SM

C305

100N PE

C306

100U EL SA OS

+

C315

100N PE

+

C312

22U EL SP OS

D311

15V 350MW SM

+

C313

100U EL SA OS

Q303

J112

D311-

R304

330R SM

Q307

BC856B

-15V

-15V3

Q301

2SC5171

D308

BAS16W SM

SP300

0V_PSU

STAR POINT 4

-15V

0V_PSU

0V_SIG

0V_PSU

0V_HF 0V_MODULE

0V_SIG

+15V

2

3

4

SK301

1

IDC4S

0V_MODULE

DRAWING TITLE

C30 Preamp PCB

ARCAM


Pembroke Avenue

Waterbeach


Filename:

Notes:


L965C3_1.2.SCH

Kevin Lamb Contact Tel:

03_E291 MJT

03_E221 KAL

03_E156 KAL

ECO No.

INITIALS

(01223) 203243 Printed:

10/10/03

Transistors Q301 & Q305 obsolete.



1.2

1.1

18/07/03


DATE DESCRIPTION OF CHANGE ISSUE

10-Oct-2003 Sheet 3 of 3 A4 DRAWING NO.

L965C3

B

D

C

1 2 3 4 5

A32 FMJ DISPLAY PCB

6 7 8

D

L928CT_B.1

L928CT_2_B.3.SCH

MICRO

CHASSIS 1

(BY SK3)

CHASSIS 2

(BY SK1)

0V_D

C39

1N0 SM

FD_1 FD_2

FIDUCIAL FIDUCIAL

FIX7 FIX2

FIX1

FIX10

0V_D

C40

1N0 SM

0V_D

C41

1N0 SM

FIX8 FIX9 FIX3

0V_D

C45

1N0 SM

0V_D

C46

1N0 SM

FIX5

0V_D

C43

1N0 SM

0V_D

C47

1N0 SM

CHASSIS 3

(BY SK2)

0V_D

C48

1N0 SM

FIX6

0V_D

FIX11

0V_D

C44

1N0 SM

FIXING HOLE 3.5

C49

1N0 SM

FIX13

FIXING HOLE 3.5

0V_D

C38

1N0 SM

FIX12

FIXING HOLE 3.2

0V_D

C37

1N0 SM

PCB1

PCB

L928PB_B

C

B

A

1 2 3 4

DRAWING TITLE

A32 FMJ AMP DISPLAY PCB

23425

Notes:


Pembroke Avenue

Denny Industrial Centre

Waterbeach


Filename

5

Circuit Diagram

6

WAF 26/9/01

JBR 10/9/01

WAF 9/08/01

CL

ECO No.

Date Printed

INITIALS

25/04/01

DATE

STICKY PADS RENUMBERED

PRE PRODUCTION RELEASE

UPDATED PROTOTYPE

B.3

B.2

B.0

INITIAL PROTOTYPE

Drawn by:

CL


Sheet 1 of 2

DRAWING NO.

A.0

L928CT1

ISSUE

7 8

A

1 2 3 4 5 6 7 8

SP7 SP8 SP6 SP3 SP10 SP9 SP1 SP4 SP2 SP5

D

C

B

A

DISPDAT

DISPCLK

DISPBLK

DISPLAT

C31

10P SM

0V_D

AV MODE RECORD TONE DVD DOWN UP ENTER POWER SELECT CD TUNER VCR

PHONO/

AUX TAPE SP2 SP1

SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195 SPACER F195

+5V

Q1

BC847B

Q2

BC847B R1

10K SM

SW6

TACTSW A1505

R2

10K SM

SW12

TACTSW A1505

R3

10K SM

SW11

TACTSW A1505

R4

10K SM

SW8

TACTSW A1505

R5

10K SM

SW7

TACTSW A1505

R6

10K SM

SW13

TACTSW A1505

R7

10K SM

SW14

TACTSW A1505

R8

10K SM

SW15

TACTSW A1505

R68

10K SM

SW17

TACTSW A1505

R9

10K SM

SW16

R10

10K SM

SW1

TACTSW A1505 TACTSW A1505

R11

10K SM

SW4

TACTSW A1505

R12

10K SM

SW2

TACTSW A1505

R13

10K SM

SW5

TACTSW A1505

R14

10K SM

SW3

TACTSW A1505

R15

10K SM

SW10

TACTSW A1505

R16

10K SM

SW9

TACTSW A1505

R17

330R SM

Q_65

LED7

R18

330R SM

Q_66

LED8

R19

330R SM

Q_67

LED6

R20

330R SM

Q_68

LED3

R21

330R SM

Q_69

LED10

R22

330R SM

Q_70

LED9

R25

330R SM

Q_71

LED1

R24

330R SM

Q_72

LED4

R23

330R SM

Q_73

LED2

R31

330R SM

Q_74

LED5 R29

10K SM

R33

330R SM

R34

150R SM

R30

10K SM

0V_D

LED GREEN

LED GREEN

LED GREEN

LED GREEN

LED GREEN

LED GREEN

LED GREEN

LED GREEN

LED GREEN

LED GREEN

C32

10P SM

1

IC5

24C02 SM

4

0V_D

0V_D

Q_42

VSS

+5V

LED11

LED RED/GRN 3MM

LEFTAUDIO

R64

100R SM

D3

BAS16W SM

Q_52

Q_46

R55

10K SM

Q_51

R65

100R SM

R67

100R SM

Q_45

Q_44

R66

100R SM

Q_43

Q_40

R51

100R SM

R32

10K SM

+5V

Q_41

VDD

8

C8

100N SM

+

10U EL SM

C11

C17

100N SM

PB0

SEL7

SEL6

SEL5

SEL4

SEL3

SEL2

SEL1

VPROG

0V_D

+5V

TRANSMIT

RECEIVE

TONEID

SDATA

SLOAD

SCLK

20

21

22

23

24

16

17

18

19

25

10

11

12

13

14

15

7

8

5

6

9

3

4

1

2

0V_D

2

R41

100K SM

R42

100K SM

+5V

C5

100N SM

0V_D

+5V

0V_D

Vcc

PB0

PB1

PB2

PB3

PB4

PB5

PB6

PB7

Vpp/RESO

Vss

TxD0/P9.0

TxD1/P9.1

RxD0/P9.2

RxD1/P9.3

IRQ4/SCK0/P9.4

IRQ5/SCK1/P9.5

D0/P4.0

D1/P4.1

D2/P4.2

D3/P4.3

Vss

D4/P4.4

D5/P4.5

D6/P4.6

5

6

IC7B

LM393A SM

7

0V_D

R43

100K SM

Q_35

3

2

Q_53

R44

100K SM

IC7A

LM393A SM

1

+5V

R49

10K SM

Q_47

H8/3048F

+5V

RECEIVE

5

6

IC6B

TRANSMIT

R50

10K SM

Q_34

SAMHOLD

+5V

2V7

R37

10K SM IC6A

LM393A SM

2

0V5

1

3

R40

4K7 SM

7 SAMDATA

R38

1K2 SM

0V_D

LM393A SM

+5V

R35

10K SM

2V7

Q_21

R36

10K SM

0V5

Q_22

R39

2K2 SM

+5V

3

2

IC8A

SAMTX2

+5V

Q_59

2V7

SAMRX2

Q_115

R45

10K SM IC8B

LM393A SM

6

0V5

7

5

0V_D

1

LM393A SM

R47

4K7 SM

R46

1K2 SM

0V_D

SAMBUSY

SP

IR RX

SUPPORT PAD

Q_54

2

+5V C9

100N SM

O/P

O/P

PLACE ONE ON TOP OF

THE OTHER UNDER RX1

IR RX SUPPORT PAD RX1

SBX1610-52/PIC-26043TM2

SP103

IR RX

SUPPORT PAD

0V_D

Q_55

0V_D

+5V

RECEIVE

VPROG

PB0

C3

100N SM

PR_VCC

PR_RXD

PR_VPP

PR_PMODE

Programming adaptor

SK4

2

4

6

8

10

12

14

9

11

13

5

7

1

3

+ C14

10U EL SM

HEADER 7X2HORIZ

0V_D

PR_GND

PR_TXD

PR_MD

PR_RESET

TRANSMIT

RESPIN

SAMHOLD

MD2

MD1

MD0

P6.6/LWR

P6.5/HWR

P6.4/RD

P6.3/AS

Vcc

XTAL

EXTAL

Vss

NM1

RES

STBY

CLKOUT

P6.2/BACK

P6.1/BREQ

P6.0/WAIT

Vss

P5.3/A19

P5.2/A18

P5.1/A17

P5.0/A16

P2.7/A15

P2.6/A14

0V_D

IC1

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

+5V

D2 +5V

BAS16W SM

Q_56 R26

10K SM

STANDBY

SP1ON

SP2ON

THERMPROT

C4

100N SM

Q_86

Q_87

Q_88

Q_89

Q_90

Q_91

RESPIN

SAMTX2

SAMRX2

BUT17

BUT9

BUT8

BUT7

BUT6

BUT2

IND3

Q_39

C7

Q_38

+5V

Q_37

100N SM

0V_D

3

2

4

1

IC2

Vcc

Res

Gnd

Gnd

DS1233 SM

C1

18P SM

X1

16MHZ SM

0V_D

C2

18P SM C12

100N SM

+5V

+ C33

0V_D

IR RX SUPPORT PAD

SAMBUSY

220U EL

+5V

Q_20

0V_D

+ C34

(FIT CLOSE TO SK1)

3

4

5

1

2

220U EL

SK2

AMPCT5

+5V

IROUT

C6

R76

10K SM

100N SM

SW18

ALPS_ENCODER

A

B

1

2

C

C13

100N SM

3

+5V

0V_D

R75

10K SM

C63B 100PX4 SM

C63A 100PX4 SM

Q_58

Q_57

R73

10K SM

Q3

BC847B

0V_D

PHASEA

PHASEB

C61D 100PX4 SM

C61C 100PX4 SM

C61B 100PX4 SM

C61A 100PX4 SM

C62D 100PX4 SM

C62C 100PX4 SM

C62B 100PX4 SM

C62A 100PX4 SM

C63D 100PX4 SM

C63C 100PX4 SM

+5V

R74

10K SM

9

8

7

6

5

4

3

2

1

IRIN

To power amp / PSU

SK1

C60D 100PX4 SM

C60C 100PX4 SM

14

13

C60B 100PX4 SM

C60A 100PX4 SM

12

11

Q4

BC847B

DC1

DISPLAY CRADLE

E916PM

+5V

+5V

F1CLOCK

R56

10K SM

Q_79

DISPLAY CRADLE E916PM

DC2

DISPLAY CRADLE

E916PM

DISPLAY CRADLE E916PM

IC11A

AD8532 SM

Q_82

Q_49

3

1

R58

R52

2

Q_80

0R0 SM

100R SM

10

IRIN

F2CLOCK

R57

10K SM

Q_78

0V_D

+5V

Q_50

FFC 14W 2.54MM HOR

0V_D

+SUP

SP101

DOUBLE SIDED

STICKY PAD

10 X 15MM

STICKY PAD DS 10X15MM

SP102

DOUBLE SIDED

STICKY PAD

10 X 15MM

STICKY PAD DS 10X15MM

R53

100R SM

Q_121

STANDBY

SP1ON

Q_122

SP2ON

Q_123

THERMPROT

Q_124

VIPROT

Q_125

DCPROT

Q_126

ACPRESENT

Q_127

Q_128

IRIN

Q_129

5

6

DISP1

B1013

IC11B

AD8532 SM

7

Q_81

F1 to F2 = 4Vac 150mA

VDD2 = 40Vdc 20mA

Graphics Display

R59

0R0 SM

0V_D

Q_48

VFD_VDD2

CHASSIS 2

0V_D 0V_D

H8/3048F

Q_98

0V_D C50A 100PX4 SM

C50B 100PX4 SM

C50C 100PX4 SM

C50D 100PX4 SM

C51A 100PX4 SM

C51B 100PX4 SM

C51C 100PX4 SM

C51D 100PX4 SM

C52A 100PX4 SM

C52B 100PX4 SM

C52C 100PX4 SM

C52D 100PX4 SM

C53A 100PX4 SM

C53B 100PX4 SM

C53C 100PX4 SM

C53D 100PX4 SM

C54A 100PX4 SM

C54B 100PX4 SM

C54C 100PX4 SM

C54D 100PX4 SM

C55A 100PX4 SM

C55B 100PX4 SM

C55C 100PX4 SM

C55D 100PX4 SM

To preamp board

SK3

22

21

20

19

Q_1

Q_2

Q_3

Q_4

18

17

16

15

14

13

Q_5

Q_6

Q_7

Q_8

Q_9

12

11

SEL1

SEL2

SEL3

SEL4

SEL5

SEL6

SEL7

SEL8

SEL9

Q_10 LEFTAUDIO

10

9

8

7

6

5

4

3

2

1

Q_11

Q_12

Q_117

Q_14

Q_118

Q_15

Q_119

Q_16

Q_120

Q_17

MUTE

TONE

TONEID

SDATA

SLOAD

SCLK

FFC 22W 1MM HOR

+SUP

R54

3K3 MF

D1

Q5

BD179 NPN TO-126

ZENER 400MW 33V

+

Q_75

C26

10U EL SM

VFD_VDD2

0V_D

+

Q_23

C28

10U EL SM

IC6C

LM393A SM C10

100N SM

IC7C

LM393A SM C15

+5V

100N SM

0V_D

IC8C

LM393A SM

C16

100N SM

IC11C

Q_64

AD8532 SM

Q_116

C25

100N SM

+ C29

100U EL SM

3

CHASSIS 1

4

0V_D

0V_D

5

DRAWING TITLE

A32 FMJ AMP DISPLAY PCB

WAF 26/9/01

23425

Notes:

Circuit Diagram

JBR 10/9/01

WAF 9/08/01


Pembroke Avenue


Waterbeach


CL 25/04/01

ECO No.

INITIALS

Filename Date Printed

J:\Released_Documents\Native_format_files\Protel_DDB\L928_B.3.Ddb - Documents\L928CT_2_B.3.SCH

6

10-Oct-2001

7

DATE

STICKY PADS RENUMBERED B.3

PRE PRODUCTION RELEASE B.2

B.0

UPDATED PROTOTYPE

INITIAL PROTOTYPE

Drawn by:

CL


Sheet 2 of 2

DRAWING NO.

8

A.0

L928CT2

ISSUE

D

C

B

A

D

1 2 3 4 5 6 7 8

D

C C

C1

SK1

PHONO2HG

1

EMC

100N CD

Q_1

0V_SIG

Q_2

0V_SIG

LEFT CHANNEL

L870C2_2.0.SCH

LEFT IN LEFT OUT

RIGHT CHANNEL

L870C3_2.0.SCH

RIGHT IN RIGHT OUT

Q_4

Q_3

+15V

Q_5

Q_6

4

5

6

7

8

1

2

3

SK2

Q_7

0V_SIG

AMPCT8

Q_8

-15V

0V_HF

B B

A

PCB1

PCB

L870PB_2

1

EL1

Update Box

UPDATE_BOX

2 3 4

DRAWING TITLE

A85 PHONO STAGE - TOP LEVEL

23425

Notes:

Circuit Diagram

01_1070 JAG


Pembroke Avenue


Waterbeach


00_1051 JAG

ECO No.

Filename Date Printed

G:\DATA\ECO\ECO AGENDA\01_1070 l870 A85 PHONO ISSUE2\L870_2.0.ddb - L870c1_2.0.PRJ

INITIALS

23-Apr-2001

17/4/01

22/3/01

DATE

5 6 updated pcb and scm 2

PRODUCTION ISSUE

Drawn by:

JBR


Sheet 1 of 3

DRAWING NO.

7 8

L870C1

1

ISSUE

A

D

C

B

A

1 2 3 4 5 6 7 8

1

R104

100R MF

0V_SIG

SW100B

4PCO

+ C100

LEFT IN

TR100

BC556B

22U EL

C108

470P PPW

R108

47K MF

C109

100P PPW

R109

12K MF

R110

12K MF

R100

330R MF

TR101

BC556B

TR106

2SA1085

TR107

2SA1085

C115

1N3 PP

SW100D

4PCO

R105

100R MF

0V_SIG

C119

100P PP

C101

1N0 PP

C110

4N7 PP

C120

1N0 PP

C112

10N PP AX

C111

R115

15K MF

10N PP AX

R112

100K MF

C105

100N PE

TR102

BC556B

R111

56K MF

R124

5K6 MF

Q_101

6

TL071CD

R113

100K MF

R116

2M2 MF

IC100

3 C118

2

10U NP

+

C102

100U SILMIC

0V_HF

R101

100R MF

Q_102

0V_SIG

R102

100R MF

C104

100N PE

+15V

R117

2M2 MF

TR108

BC546B

TR104

BC556B

TR103

BC556B

D100

1N4148 C106

100N PE

TR109

BC546B

R118

22R MF

R119

22R MF

TR105

BC556B

C113

1U0 PE

0V_SIG

LEFT OUT

R122

39K MF

R123

10R MF

R114

100K MF

C116

470P PPW

C117

470P PPW

TR112

BC546B

TR113

BC546B

2

TR110

BC546B

D101

1N4148

R120

22R MF

3

TR111

BC546B

D102

1N4148

R121

22R MF 0V_HF

+

C103

100U SILMIC

TR114

BC546B

R106

100R MF

0V_SIG

DRAWING TITLE

A85 PHONO STAGE - LEFT CHANNEL

Circuit Diagram

4

23425

Notes:


Pembroke Avenue


Waterbeach


Filename

C107

100N PE

Q_103

-15V

01_1070 JAG 17/4/01

6

00_1051 JAG 22/3/01

ECO No.

Date Printed

INITIALS

23-Apr-2001

DATE updated pcb and scm 2

PRODUCTION ISSUE

Drawn by:

JBR

7


Sheet 2 of 3

DRAWING NO.

8

L870C2

1

ISSUE

D

C

B

A

D

C

B

A

1 2 3 4 5 6 7 8

1

R204

100R MF

0V_SIG

SW100A

4PCO

+ C200

TR200

BC556B

22U EL

RIGHT IN

C208

470P PPW

R208

47K MF

C209

100P PPW

R209

12K MF

R210

12K MF

R200

330R MF

TR201

BC556B

TR206

2SA1085

TR207

2SA1085

R205

C219

100P PP

C201

1N0 PP

C210

4N7 PP

C220

1N0 PP

C212

10N PP AX

C211

R215

15K MF

10N PP AX

R212

100K MF

C205

100N PE

C215

1N3 PP

R211

56K MF

SW100C R224

4PCO 5K6 MF

Q_201

R213

100K MF

6

TL071CD

R216

2M2 MF

IC200

3

2

TR202

BC556B

C218

10U NP

+

C202

100U SILMIC

0V_HF

R201

100R MF

R217

2M2 MF

TR208

BC546B

TR204

BC556B

Q_202

R202

100R MF

TR203

BC556B

D200

1N4148

C204

100N PE

0V_SIG

C206

100N PE

+15V

TR209

BC546B

R218

22R MF

R219

22R MF

TR205

BC556B

C213

1U0 PE

R222

RIGHT OUT

39K MF

0V_SIG

100R MF

R223

10R MF

R214

100K MF

0V_SIG

C217

470P PPW C216

470P PPW

TR212

BC546B

TR213

BC546B

2

TR210

BC546B

D201

1N4148

R220

22R MF

3

TR211

BC546B

D202

1N4148

R221

22R MF 0V_HF

+

C203

100U SILMIC

TR214

BC546B

R206

100R MF

0V_SIG

DRAWING TITLE

A85 PHONO STAGE - RIGHT CHANNEL

Circuit Diagram

4

23425

Notes:


Pembroke Avenue


Waterbeach


Filename

C207

100N PE

Q_203

-15V

01_1070 JAG 17/4/01

6

00_1051 JAG 22/3/01

ECO No.

Date Printed

INITIALS

23-Apr-2001

DATE updated pcb and scm 2

PRODUCTION ISSUE

Drawn by:

JBR

7


Sheet 3 of 3

DRAWING NO.

8

L870C3

1

ISSUE

D

C

B

A

Source Selection Circuit

Source Selection Circuit.Sch

FLeft_Vol

Centre_Vol

FRight_Vol

SLeft_Vol

Sub_Vol

SRight_Vol

BLeft_Vol

BRight_Vol

Mch1*/Mch2_Ctl

Control Circuit

Control Circuit.Sch

Mch1*/Mch2_Ctl

Vol_Mute

Vol_CS_B

Vol_CS_A

Vol_SCLK

Vol_SDI

Mute_A*

Mute_B*

ITEM

ITEM100

ITEM101

ITEM102

ITEM103

ITEM104

ITEM105

1

1

1

1

1

1

QTY PART No.

DESCRIPTION

L955PB

E802AP

E802AP

E802AP

E802AP

E802AP

BLANK PCB 7.1 MCH PCB

PAD DAMPING 15x6x3MM SORBOTHANE





Volume Control Circuit

Volume Control Circuit.Sch

FLeft_Vol

Centre_Vol

FRight_Vol

SLeft_Vol

Sub_Vol

SRight_Vol

BLeft_Vol

BRight_Vol

Vol_Mute

Vol_CS_B

Vol_CS_A

Vol_SCLK

Vol_SDI

FLeft_OP

Centre_OP

FRight_OP

Vol_Mute

SLeft_OP

Sub_OP

SRight_OP

BLeft_OP

BRight_OP

Output Driver Circuit

Output Driver Circuit.Sch

FLeft_OP

Centre_OP

FRight_OP

SLeft_OP

Sub_OP

SRight_OP

BLeft_OP

BRight_OP

Mute_A*

Mute_B*

NOTES

Fit on top of IC308

Fit on top of IC309

Fit on top of IC310

Fit on top of IC311

Fit on top of C100 and C101

DRAWING TITLE

Top Sheet

23425


Pembroke Avenue

Waterbeach


Filename:

Notes: expansion brd.prj

03_E095

03_E071

A80/A32 Multichannel Expansion Module

Contact Engineer: Sandip Ukani Contact Tel:

02_E227

ECO No.

(01223) 203293

S.U

S.U

03/04/03

03/03/03

S.U

INITIALS

Printed:

16/10/02

DATE

4-Apr-2003

ISSUE 1 Release

ISSUE B Release

ISSUE A Release



L955CT

1.0

B

A

ISSUE

From A85/A32 Preamp Board

CON100

1

2

3

4

MOLEX

6373

C108 NF

100N

50V

0805

C109

100N

50V

0805

C110

100N

50V

0805

C111

100N

50V

0805

P101

P112

P100

C100

470UF

25V

YK

+15VA HS100A REG101

L7805CV

+5

C102

330N

100V

MKS2

6043PB

23C/W

TO-220

C101

470UF

25V

YK

-15VA

C103

2

1UF

3

50V

6

YK

7

REG100

L79L05ACD

SO-8

-5

1

C105

100N

100V

MKS2

PSU_GND

C104

1UF

50V

YK

P110

P102

+5VA

C106

220UF

16V

YK

C107

100UF

25V

YK

Prog_Data

P103

-5VA

C130

R117 100R

0805 0W125

C118

100N

50V

0805

DGND

100P

100V 0805

R116

0R0

0W125

0805

PSU_GND

C132

100P

100V 0805

C129

C112

AGND

100N

50V

0805

100P

100V

0805

1

FIX100

Dia 3.5mm

P123

P124

0805 0W125

R103 1K0

P114

R104 1K0

0805 0W125

P115

Vol_CS_A

Vol_CS_B

From A85/A32 Display board

In circuit programming adaptor P104

CON101

P105

9

10

11

12

13

14

5

6

7

8

3

4

1

2

HARWIN

M20-972

DGND

C113

100N

50V

0805

+5VD

C114

100N

50V

0805

C128

100N

50V

0805

C121

100P

100V

0805

C122

100N

50V

0805

L100

AR621LY

33U

+5VA

VPP

P113

MD2

Reset

C123

100P

100V

0805

C124

100P

100V

0805

C115

100N

50V

0805

C116

100N

50V

0805

C125

100P

100V

0805

C126

100P

100V

0805

R112 330R

0805 0W125

C127

100P

100V

0805

+5VD

R113 330R

0805 0W125

PB0

R114 330R

0805 0W125

Transmit to ExpBrd

P107

P108

R100

10K

0W125

0805

9

8

7

6

P132

R102

P126

DGND

5

4 Prog_Reset

+5VD

P109 100R

0W125

0805

3

2

R101

47K

0W125

0805

D100

BAT54S

SOT-23

1

P125

C120

P116

10UF

50V

SM

+5VD

R110

DGND

R115

10K

0W125

10K

0W125

0805

DGND

0805

IC100

RB3/CCP1

RB2/TX/CK

RB1/RX/DT

RB0/INT

RB4/PGM

RB5

RB6/T1OSO/T1CKI

RB7/T1OSI

VSS VDD

RA5/MCLR/THV RA6/OSC2/CLKOUT

RA4/TOCKI/CMP2 RA7/OSC1CLKIN

RA3/AN3/CMP1 RA0/AN0

RA2/AN2/VRef

PIC16F627T-20/SO

SO-18

RA1/AN1

L955SW

16

17

18

10

11

12

13

14

15

+5VD

C117

100N

50V

0805

DGND

C119

100UF

25V

SM

PSU_GND

X100 NF

P127

P128

P129

P130

P131

R105 1K0

P117

0805 0W125

R106 1K0

P118

0805 0W125

R111 1K0

P119

0805 0W125

R107 1K0

P120

0805 0W125

R108 100R

P121

0805 0W125

R109 100R

P122

0805 0W125

DGND

4.00MHz

SIL-3

Mute_B*

Mute_A*

Vol_Mute

Mch1*/Mch2_Ctl

Vol_SCLK

Vol_SDI

Prog_Clock

P111

DRAWING TITLE

Control, Power and Interface

23425


Pembroke Avenue

Waterbeach


Filename: Control Circuit.Sch

03_E095 S.U

03/04/03 ISSUE 1 Release

Notes: 03_E071



02_E227

ECO No.

(01223) 203293

S.U

S.U

INITIALS

Printed:

03/03/03 ISSUE B Release

16/10/02

DATE

4-Apr-2003

ISSUE A Release



1.0

B

L955CT_1

A

ISSUE

SKT200 GOLD

KUNMING

REAR PANEL VIEW

P217

AGND

C200

10N

100V

0805

Mch1_FRight

P200

Mch1_FLeft

R200

P220

100R

0W125

0805

R205

C204

100P

100V

0805

AGND

P221

P205 100R

0W125

0805

C209

AGND

100P

100V

0805

Mch1_Sub

R216

22K

0W125

0805

R218

22K

0W125

0805

R217

22K

0W125

0805

R201

P222

P201 100R

0W125

0805

C205

AGND

100P

100V

0805

P223

14

P225

4

IC200A

1Z

2Z

3Z

1Y0

1Y1

2Y0

2Y1

3Y0

3Y1

S1

S2

S3

E

74HCT4053D

SO-16

12

13

2

1

5

3

11

10

9

6

AGND

Mch1*/Mch2_Ctl

SKT201 GOLD

KUNMING

REAR PANEL VIEW Mch2_Centre

P216

AGND

C201

10N

100V

0805

Mch2_FRight

P202

R202

100R

0W125

0805

Mch2_FLeft

P204

R204

P226

R219

C207

22K

0W125

0805

100P

100V

0805

AGND

P227 R220

Mch2_Sub

P203

100R

0W125

0805

C208

100P

100V

0805

AGND

0805

0W125

100R

P228

R203

C206

22K

0W125

0805

R221

22K

0W125

0805

100P

100V

0805

AGND

P229

14

4

P231

IC201A

1Z

2Z

3Z

74HCT4053D

SO-16

1Y0

1Y1

2Y0

2Y1

3Y0

3Y1

S1

S2

S3

E

12

13

2

1

5

3

11

10

9

6

AGND

Mch1*/Mch2_Ctl

FRight_Vol

FLeft_Vol

Sub_Vol

SRight_Vol

SLeft_Vol

Centre_Vol

BRight_Vol

BLeft_Vol

To Volume Controls

SKT202 GOLD

KUNMING

REAR PANEL VIEW

Mch1_SRight

R210

P210

P232

100R

0W125

0805

C214

100P

100V

AGND

0805

R206 P233

Mch1_SLeft

P206 100R

0W125

0805

C210

AGND

100P

100V

0805

R207

P236

P207 100R

0W125

0805

C211

100P

100V

AGND

0805

R222

22K

0W125

0805

R226

22K

0W125

0805

R223

22K

0W125

0805

P234

14

P237

4

IC202A

1Z

2Z

3Z

1Y0

1Y1

2Y0

2Y1

3Y0

3Y1

S1

S2

S3

E

74HCT4053D

SO-16

11

10

9

6

1

5

3

12

13

2

AGND

Mch1*/Mch2_Ctl

C202

P218

AGND

10N

100V

0805

Mch1_BRight

R212

P212

Mch1_BLeft

R211

P244

100R

0W125

0805

C216

AGND

100P

100V

0805

P245

P211 100R

0W125

0805

C215

100P

100V

AGND

0805

R227

22K

0W125

0805

R228

22K

0W125

0805

P246

P247

14

15

P248

4

IC204A

1Z

2Z

3Z

1Y0

1Y1

2Y0

2Y1

3Y0

3Y1

S1

S2

S3

E

AGND

74HCT4053D

SO-16

11

10

9

6

1

5

3

12

13

2

AGND

Mch1*/Mch2_Ctl

100N

50V

0805

AGND

100N

50V

0805

+5VA

16

C220

IC200B

VCC

8

C221

7

GND

VEE

74HCT4053D

SO-16

AGND

100N

50V

0805

+5VA

16

C222

IC201B

VCC

8

C223

GND

100N

50V

0805

7

VEE

74HCT4053D

SO-16

100N

50V

0805

AGND

100N

50V

0805

+5VA

16

C224

IC202B

VCC

8

C225

GND

7

VEE

74HCT4053D

SO-16

100N

50V

0805

AGND

100N

50V

0805

+5VA

16

C226

IC203B

VCC

8

C227

GND

7

VEE

74HCT4053D

SO-16

100N

50V

0805

AGND

100N

50V

0805

+5VA

16

C228

IC204B

VCC

8

C229

GND

7

VEE

74HCT4053D

SO-16

100N

50V

0805

AGND

100N

50V

0805

+5VA

16

C230

IC205B

VCC

8

C231

GND

7

VEE

74HCT4053D

SO-16

-5VA -5VA -5VA -5VA -5VA -5VA

SKT203 GOLD

KUNMING

REAR PANEL VIEW

P219

AGND

C203

10N

100V

0805

Mch2_SRight

Mch2_SLeft

P213

R208

P208 100R

0W125

0805

P209

R213

100R

0W125

0805

R209

100R

0W125

0805

P238

R224

C217

22K

0W125

0805

100P

100V

0805

AGND

P239

R229

C212

22K

0W125

0805

100P

100V

0805

AGND

P242

R225

C213

22K

0W125

0805

100P

100V

AGND

0805

P240

14

15

P241

4

P243

IC203A

1Z

2Z

3Z

1Y0

1Y1

2Y0

2Y1

3Y0

3Y1

S1

S2

S3

E

74HCT4053D

SO-16

11

10

9

6

1

5

3

12

13

2

AGND

Mch1*/Mch2_Ctl

Mch2_BRight

R215

P215 100R

0W125

0805

R214

P249

C219

AGND

100P

100V

0805

P250

Mch2_BLeft

P214 100R

0W125

0805

C218

100P

100V

AGND

0805

R230

22K

0W125

0805

R231

22K

0W125

0805

P251

P252

14

15

4

IC205A

1Z

2Z

3Z

1Y0

1Y1

2Y0

2Y1

3Y0

3Y1

S1

S2

S3

E

AGND

74HCT4053D

SO-16

DRAWING TITLE

11

10

9

6

1

5

3

12

13

2

Source Multiplexer

23425


Pembroke Avenue

Waterbeach


AGND

Mch1*/Mch2_Ctl

Filename: Source Selection Circuit.Sch

03_E095

Notes: 03_E071



02_E227

ECO No.

(01223) 203293

S.U

S.U

03/04/03

03/03/03

ISSUE 1 Release

ISSUE B Release

S.U

INITIALS

Printed:

16/10/02

DATE

4-Apr-2003

ISSUE A Release



1.0

B

L955CT_2

A

ISSUE

FLeft_Vol

Sub_Vol

FRight_Vol

SLeft_Vol

Centre_Vol

SRight_Vol

BLeft_Vol

BRight_Vol

From Source Multiplexer

C365

Note: Bulk decoupling capacitors on volume chips also bulk decouple the attached dc servos

R311

22P

100V

0805

22K

0W125

0805

+15VA

0805

50V

100N

P300

C329

100N

50V

0805

FLeft_Vol 2

IC300A

3

C331

1

AGND

OPA2134UA

SO-8 C373

-15VA C330

AGND

100N

50V

0805

7

1U0

63V

PE OLD

IC300B

R301

100K

0W125

0805

OPA2134UA

SO-8

6

5

AGND

R319

0W125

1M0

0805

P301

AGND

Sub_Vol 2

IC301A

C366 22P

R312

22K

100V

0805

0W125

0805

+15VA

C341

1

0805

50V

100N

AGND

3

SO-8 C375

C367

R313

22P

100V

0805

22K

0W125

0805

+15VA

0805

50V

100N

C339

100N

50V

0805

-15VA C340

AGND

100N

50V

0805

7

470N

100V

MKS2

IC301B

R303

100K

0W125

0805

OPA2134UA

SO-8

P314

FRight_Vol 2

IC302A

AGND

P315

3

C338

1

AGND

OPA2134UA

SO-8 C374

R320

0W125

1M0

0805

C368 22P

100V

R314

0805

C336

100N

50V

0805

-15VA C337

100N

50V

AGND

0805

7

1U0

63V

PE OLD

IC302B

R302

100K

0W125

0805

OPA2134UA

SO-8

6

5

AGND

22K

0W125

0805

+15VA

0805

50V

100N

AGND

SLeft_Vol 2

IC303A

3

C349

1

AGND

OPA2134UA

SO-8 C377

C369 22P

100V

R315

0805

22K

0W125

0805

+15VA

0805

50V

100N

C347

100N

50V

0805

-15VA C348

AGND

100N

50V

0805

7

470N

100V

MKS2

IC303B

R306

100K

0W125

OPA2134UA

SO-8

0805

2

IC304A

AGND

3

C346 AGND

1

OPA2134UA

SO-8 C376

R322

0W125

1M0

0805

C370 22P

100V

R316

0805

C344

100N

50V

0805

-15VA

C345

AGND

100N

50V

0805

7

470N

100V

MKS2

IC304B

R305

100K

0W125

0805

OPA2134UA

SO-8

6

5

AGND

22K

0W125

0805

+15VA

0805

50V

100N

P317

AGND

SRight_Vol 2

IC305A

3

C350

1

AGND

OPA2134UA

SO-8 C380

6

5

AGND

6

5

AGND

R321

0W125

1M0

0805

R323

0W125

1M0

0805

R325

0W125

1M0

0805

C359

100N

50V

0805

AGND

-15VA C360

100N

50V

AGND

0805

7

470N

100V

MKS2

IC305B

R308

100K

0W125

OPA2134UA

SO-8

0805

6

5

AGND

+5VA

10UF

50V

SM

C304

PSU_GND AGND

16

P302

C332

100N

50V

0805

+15VA

C305

C333

10UF

50V

SM

PSU_GND

100N

50V

0805

AGND

VINL

VOUTL

IC308

14

P303

C312

10UF

50V

SM

PSU_GND

C342

-15VA

100N

50V

0805

+5VA

AGND

Vol_Mute

Vol_CS_A

Vol_SCLK

Vol_SDI

15

10

AGND

9

AGNDL

AGNDR

AGNDL

AGNDR

C361

-15VA

100N

50V

0805

+5VA

AGND

Vol_Mute

Vol_CS_B

Vol_SCLK

Vol_SDI

P325

11

PGA2310UA

SO-16W

AGND

+5VA

10UF

50V

SM

C318

PSU_GND AGND

16

P318

C351

100N

50V

0805

+15VA

C319

C352

10UF

50V

SM

PSU_GND

100N

50V

0805

AGND

VINL

VOUTL

IC310

14

P319

C326

10UF

50V

SM

PSU_GND

15

10

AGND

9

VINR

VINR

VOUTR

VOUTR

11

PGA2310UA

SO-16W

AGND

R309

100K

0W125

0805

AGND

10UF

50V

SM

C306

PSU_GND AGND

16

P304

C334

100N

50V

0805

+15VA

C307

C335

10UF

50V

SM

PSU_GND

100N

50V

0805

AGND

+5VA

IC309

VINL

VOUTL

14

15

10

P305

AGND

9

AGNDL

AGNDR

VINR VOUTR

11

C313

10UF

50V

SM

PSU_GND

C343

100N

-15VA

50V

0805

+5VA

AGND

Vol_Mute

Vol_SCLK

P324

R304

100K

0W125

0805

AGND

PGA2310UA

SO-16W

AGND

P306

FLeft_OP

P307

FRight_OP

P308

Sub_OP

P309

Centre_OP

P310

SLeft_OP

P311

SRight_OP

P312

BLeft_OP

P313

BRight_OP

To Output Driver Circuit

C371 22P

100V

R317

0805

22K

0W125

0805

50V

100N

2

3

IC306A

C355 AGND

1

OPA2134UA

SO-8 C378

AGND

-15VA

C353

100N

50V

0805

C354

AGND

100N

50V

0805

7

470N

100V

MKS2

IC306B

R307

100K

0W125

0805

OPA2134UA

SO-8

6

5

AGND

R324

0W125

1M0

0805

C362

100N

50V

0805

AGND

C372 22P

100V

R318

0805

22K

0W125

0805

+15VA

0805

50V

100N

2

IC307A

3

C356 AGND

1

OPA2134UA

SO-8 C379

-15VA C363

100N

50V

AGND

0805

7

470N

100V

MKS2

IC307B

R310

100K

0W125

0805

OPA2134UA

SO-8

6

5

AGND

R326

0W125

1M0

0805

+5VA

C323

10UF

50V

SM

PSU_GND

P322

C357

100N

50V

0805

+15VA C324

C358

10UF

50V

SM

PSU_GND

100N

50V

0805

AGND

AGND

16

VINL

VOUTL

IC311

14

P323

15

10

AGND

9

AGNDL

AGNDR

VINR VOUTR

11

PGA2310UA

SO-16W

AGND

C328

10UF

50V

SM

PSU_GND

C364

-15VA

AGND

100N

50V

0805

+5VA

Vol_Mute

Vol_SCLK

DRAWING TITLE

Volume Control

23425


Pembroke Avenue

Waterbeach


Filename: Volume Control Circuit.Sch

Notes: 03_E071


Contact Engineer: EngNameXXXX Contact Tel:

02_E227

ECO No.

(01223) 203XXX tel No

S.U

03/03/03

S.U

INITIALS

Printed:

16/10/02

DATE

4-Apr-2003

ISSUE B Release

ISSUE A Release



B

L955CT_3

A

ISSUE

From Volume Control Circuit

FLeft_OP

FRight_OP

Centre_OP

Sub_OP

SLeft_OP

SRight_OP

BLeft_OP

BRight_OP

10UF

50V

SM

0805

0W125

10K

R400

FLeft_OP

0805

100V

33P

C410

P411

R401

AGND

10K

0W125

0805

C419

C401

+15VA

100N

50V

0805

10UF

50V

SM

PSU_GND

R418

2 IC400A

1

P412

3

OPA2134UA

SO-8

0805

100V

33P

47R

0W125

0805

AGND

10UF

50V

SM

PSU_GND

C400

C418

-15VA

AGND

100N

50V

0805

C411

R402

FRight_OP

R405

10K

0W125

0805

P414

6

10K

0W125

0805

IC400B

7

5

P415

OPA2134UA

SO-8

AGND

R419

47R

0W125

0805

0805

100V

33P

C408

C415

R409

AGND

BLeft_OP

R408

10K

0W125

0805

P419

2

3

AGND

C404

10UF

50V

SM

PSU_GND

+5VA

P426

10K

0W125

0805

+15VA

IC402A

1

SO-8

P420

OPA2134UA

C422

100N

50V

0805

C405

10UF

50V

SM

PSU_GND

C423

100N

50V

0805

0805

100V

33P

AGND

C416

R410

-15VA

BRight_OP

R416

P429

6

10K

0W125

0805

5

AGND

10K

0W125

0805

IC402B

7

P430

OPA2134UA

SO-8

RLY400C D406 RLY401C

NEC

EB2-5NU

BAS16

SOT-323

NEC

EB2-5NU

Mute_A*

R442

P425

R440

0R0

0W125

0805

4K7

0W125

0805

P427

R415

10K

0W125

0805

P428

TR400

BC849B

SOT-23

Mute_B*

R441

4K7

0W125

0805

P431

R417

10K

0W125

0805

-15VA

R422

47R

0W125

0805

-15VA

R425

47R

0W125

0805

D402

BAV99 SOT-23

D403

BAV99 SOT-23

D407

BAS16

SOT-323

P432

TR401

BC849B

SOT-23

+5VA

+15VA

+15VA

RLY402C

NEC

EB2-5NU

PSU_GND

C409

10UF

50V

SM

0805

100V

33P

C412

Centre_OP

SLeft_OP

R404

R403

P413

2

10K

0W125

0805

3

AGND

C403

10UF

50V

SM

PSU_GND

10K

0W125

0805

+15VA

IC401A

1

P416

AGND

C420

100N

50V

0805

C402

10UF

50V

SM

PSU_GND

OPA2134UA

SO-8

0805

100V

33P

C421

-15VA

Sub_OP

R406

AGND

10K

0W125

0805

100N

50V

0805

C414

R407

P417

6

10K

0W125

0805

IC401B

7

5

P418

OPA2134UA

SO-8

AGND

-15VA

R420

47R

0W125

0805

-15VA

R421

47R

0W125

0805

D400

BAV99 SOT-23

+15VA

D401

BAV99 SOT-23

+15VA

0805

100V

33P

FLeft_OUT

FRight_OUT

P400

P401

C428

100P

100V

0805

P408

C429

AGND

100P

100V

0805

To A85/A32 Preamp Board

CON400

17

16

15

14

13

12

11

10

9

8

4

3

2

1

7

6

5

26

25

24

23

22

21

20

19

18

30

29

28

27

MOLEX

52806

P402

Centre_OUT

SKT400

KUNMING

GOLD

AGND

RLY400A

NEC

EB2-5NU

P403

RLY400B

NEC

EB2-5NU

Sub_OUT

AGND P410

AGND

C426

10N

100V

0805

C413

R412

R411

10K

0W125

0805

C406

10UF

50V

SM

P421

2

3

AGND

PSU_GND

10K

0W125

0805

+15VA

AGND

C424

100N

50V

0805

C407

10UF

50V

SM

PSU_GND

-15VA

IC403A

1

P422

R423

OPA2134UA

SO-8

0805

100V

33P

47R

0W125

0805

C425

-15VA

100N

50V

0805

C417

R414

SRight_OP

AGND

R413

10K

0W125

0805

P423

6

10K

0W125

0805

IC403B

7

5

AGND

P424

OPA2134UA

SO-8

-15VA

R424

47R

0W125

0805

D404

BAV99 SOT-23

+15VA

D405

BAV99 SOT-23

+15VA

AGND

AGND

RLY401A

NEC

EB2-5NU

SLeft_OUT

P404

P405

SRight_OUT

RLY401B

NEC

EB2-5NU

SKT401

KUNMING

REAR PANEL VIEW

P406

P409

AGND

P407

GOLD

C427

10N

100V

0805

BLeft_OUT

BRight_OUT

AGND

RLY402A

NEC

EB2-5NU

RLY402B

NEC

EB2-5NU

AGND

DRAWING TITLE

Output driver

23425


Pembroke Avenue

Waterbeach


Filename: Output Driver Circuit.Sch

03_E095 S.U

03/04/03 ISSUE 1 Release

Notes: 03_E071



02_E227

ECO No.

(01223) 203293

S.U

S.U

INITIALS

Printed:

03/03/03 ISSUE B Release

16/10/02

DATE

4-Apr-2003

ISSUE A Release



1.0

B

L955CT_4

A

ISSUE

AC IN

Transformer Specification For 115/230V C30 transformer

Arcam Part Number L923TX

Material Safety Specification

1. Winding Wire to be Grade 2 (130C rating) to BS 60317-4 1995

2. Mylar Polyester Insulator 130C Rated

3. Potting Compound PC3502 E135297(M)

Mechanical Specification

1. Middle of transformer to be potted (as shown).

2. Primary windings connect to 6 way MOLEX connector 39-01-2065. Secondary windings connect to 8 way molex connector 39-01-3088. Use MOLEX pin 44476-3112.

MOLEX connectors have pin numbers indicated on them.

3. Primary wires are enclosed in a common sleeve. Secondary wires are enclosed in a common

sleeve.

Use PVC sleeving.

4. All wire lengths in mm. Lengths are +5.0, -0

5. Please adhere rubber insulating pad to bottom of transformer as shown.

Electrical Specification

1. Transformer to have dual 115V primaries to allow parallel operation for

115V input and series operation with 230V input.

2. Transformer input voltage range

115V -18% +14% (97.5V to 132.5V)

230V -18% +14% (195V to 265V)

3. Transformer to have 4 secondary windings as show in the adjacent drawing.

4. Loaded DC voltages specified at 195V AC in (with transformer primaries in series)

5. Each secondary winding to have a full wave (4diode) bridge to produce a single DC rail. (AS

shown in diagram)

Output Capacitance is as indicated in table.

The specified voltage figure with this input voltage is to be the minimum voltage on the reservoir

capacitor as shown in the diagram.

6. The transformer is intended to be massively overrated so as to provide very low resistance

windings for the VP24V7 and VN24V7 supplies.

This will improve the audio quality of the equipment it is to be used in by allowing the flux density

to be very low and the wire guage to be larger than would otherwise be the case. The sizes given

are maximum finished sizes.

There is no merit in attempting to reduce the size much below the maximum sizes specified. Audio

quality will be improved by making the transformer as large as possible.

7. The VP46 and VP18 secondaries are fused by T250mA Fuses.

The VP24V7 and VN24V7 secondary windings are unfused.

The transformer must be designed so that a short on either of the unfused windings will cause the

primary fuses (2AT) to blow.

6

3

5

2

4

1

8

4

7

3

6 way 8 way

Pin outs of Molex connectors

As viewed looking down at the end the wires enter the connector

6

2

5

1

Supply

VP24V7

VN24V7

VP46

VP18

DC Voltage

Min *see diagram

At 195V rms in

21.0V

21.0V

39.0V

15.0V

Connector Latch

Load

Current

200mA

200mA

50mA

160mA

LEADS EXIT FROM TOP

Output

Capacitance

10,000uF

10,000uF

100uF

1000uF

100mm

Voltage on Reservoir Capacitor

8 way MOLEX 39-01-3088 or

8 way Conexcon 6740-1080

UL94- V0



UL94- V0

Strip and tin 10mm

SECONDARIES

PRIMARIES

SCREEN WIRE

140mm

200mm

VOUT min

10mS

TEST CIRCUIT (PER OUTPUT)

+

C out

+VOUT

I out

-VOUT

120mm dia max

40mm

25mm

POTTING COMPOUND

Rubber insulating pad

Rubber insulating pad to have

Clearance hole for M6 Bolt

4

1

3

6

PRIMARY

6 WAY CONN PIN 4 BROWN

115V ac

6 WAY CONN PIN 1 WHITE

6 WAY CONN PIN 3

115V ac

6 WAY CONN PIN 6

BLACK

BLUE

SECONDARY

RED

VP18

OR

YELL

VP46

GRN

BLU

VP24V7

VIO

GREY

VN24V7

WHITE

SCREEN WIRE GRN/YELL

7

8

3

4

2

6

1

5

DRAWING TITLE

C30 TRANSFORMER 115/230V

23425


Pembroke Avenue

Waterbeach


Filename:

Notes:

L923TX_2.0.sch


03_E110

03_E076

Contact Tel: (01223) 203200

ECO No.

GJ

GJ

10-03-03

4-03-03

KAL

INITIALS

Printed:

4-11-2002

DATE

11-Apr-2003

Potting rasied to top of transformer

Ptting is counter bored to 39mm from bottom face of transformer

Screen wire length from 140mm to 200mm

Added Conexcon alternative connectors

Prototype Release



L923TX

2.0

1.0

A.0

ISSUE

Transformer Specification For 100V C30 transformer

Arcam Part Number L922TX

Material Safety Specification

1. Winding Wire to be Grade 2 (130C rating) to BS 60317-4 1995

2. Mylar Polyester Insulator 130C Rated

3. Potting Compound PC3502 E135297(M)

Mechanical Specification

1. Middle of transformer to be potted (as shown).

2. Primary windings connect to 6 way MOLEX connector 39-01-2065.

Secondary windings connect to 8 way molex connector 39-01-3088. Use MOLEX pin

44476-3112.

MOLEX connectors have pin numbers indicated on them.

3. Primary wires are enclosed in a common sleeve. Secondary wires are

enclosed in a common sleeve.

Use PVC sleeving.

4. All wire lengths in mm. Lengths are +5.0, -0

5. Please adhere rubber insulating pad to bottom of transformer as shown.

Electrical Specification

1. Transformer to have dual 100V primaries to allow parallel operation for

100V input.

2. Transformer input voltage range

100V -15% +15% (85V to 115Vrms)

3. Transformer to have 4 secondary windings as show in the adjacent drawing.

4. Loaded DC voltages specified at 85V AC in (with transformer primaries in

parallel)

5. Each secondary winding to have a full wave (4diode) bridge to produce a

single DC rail. (AS shown in diagram)

Output Capacitance is as indicated in table.

The specified voltage figure with this input voltage is to be the minimum voltage

on the reservoir capacitor as shown in the diagram.

6. The transformer is intended to be massively overrated so as to provide very

low resistance windings for the VP24V7 and VN24V7 supplies.

This will improve the audio quality of the equipment it is to be used in by

allowing the flux density to be very low and the wire guage to be larger than

would otherwise be the case. The sizes given are maximum finished sizes.

There is no merit in attempting to reduce the size much below the maximum

sizes specified. Audio quality will be improved by making the transformer as

large as possible.

7. The VP46 and VP18 secondaries are fused by T250mA Fuses.

The VP24V7 and VN24V7 secondary windings are unfused.

The transformer must be designed so that a short on either of the unfused

windings will cause the primary fuses (2AT) to blow.

Connector Latch

6

3

5

2

4

1

8

4

7

3

6

2

5

1

6 way 8 way

Pin outs of Molex/Conexcon connectors

As viewed looking down at the end the wires enter the connector

LEADS EXIT FROM TOP

Supply

VP24V7

VN24V7

VP46

VP18

DC Voltage

Min *see diagram

At 85V rms in

21.0V

21.0V

39.0V

15.0V

Load

Current

200mA

200mA

50mA

160mA

Output

Capacitance

10,000uF

10,000uF

100uF

1000uF

100mm

Voltage on Reservoir Capacitor

AC IN

10mS

TEST CIRCUIT (PER OUTPUT)

+

C out

+VOUT

I out

VOUT min

UL94- V0

UL94- V0



UL94- V0

UL94- V0



Strip and tin 10mm

SECONDARIES

PRIMARIES

SCREEN WIRE

140mm

220 mm

-VOUT

120mm dia max

40mm

25mm

POTTING COMPOUND

Rubber insulating pad

Rubber insulating pad to have

Clearance hole for M6 Bolt

3

6

4

1

PRIMARY

6 WAY CONN PIN 4 BROWN

100V ac

6 WAY CONN PIN 1 WHITE

6 WAY CONN PIN 3

100V ac

6 WAY CONN PIN 6

BLACK

BLUE

SECONDARY

RED

VP18

OR

YELL

VP46

GRN

BLU

VP24V7

VIO

GREY

VN24V7

WHITE

SCREEN WIRE GRN/YELL

3

4

2

6

1

5

7

8

DRAWING TITLE

C30 TRANSFORMER 100V

Filename:

Notes:

L922TX_1.0.sch


Pembroke Avenue

Waterbeach

Cambridge CB5 9PB Contact Engineer: Kevin Lamb Contact Tel: (01223) 203200

ECO No.

SLS

GJ

KAL

INITIALS

Printed:

13-10-2003

15/05/03

4-11-2002

DATE

Production Release

ECO 03_E137 -Screen lead lengthen to 220 mm

Conexcon connector added, potting filled to top of TX

Prototype Release


13-Oct-2003 Sheet 1 of 1 DRAWING NO.

L922TX

1.0

B.0

A.0

ISSUE

E847CPB

E839AYB

HA4V06B

E185AYB

E188AYB

E083AY

8Q006

HL25AB

E849PMB

E830MC

E933AY

E884MC

HA3A04A

E847PM

E895PMB

E894PMB

HA3V06A

HA3V10A

HA4A12B

HA5L12B

HA6K50A

HB25V12B

HE6V06B

HF4V09B

HJ4A00A

HJ4C00D

HL4SB

HL6MA

HP008

E186AY

E804MI

E212AY

E822PM1

E850MC

E853MC

E860MC

E878MC

E879SL

F082

F094

F164

F235

L870AY

L914CA

L915CA

L928CA

L917CA

L918CA

L928AY

L965AY

L965CA

L923TX

L922TX

L958AY_115/230V

L955AY

C30 Mechanical and packing parts list

Part no

27

28

29

30

31

22

23

24

19

20

21

25

26

13

15

16

10

11

12

17

18

5

6

7

8

9

40

41

41

42

35

36

37

32

33

34

38

39

Item no Description

GENERAL MECHANICAL PARTS

Rear Panel Assembly FMJ C30

Insulator Mains Diva A85 / P85

FMJ A32 Chassis Assembly

Foot Black Alpha

Heat Shunt Diva A85

Clamp Pre-Amp Reg Diva A85

Blanking Plate Diva A85 Module Slot

Bracket Diva Phono Upgrade Board

Label Mod State

Sil Pad For TO-220 HS Insulator

Clip Volume Knob FMJ

Tape 3509 BK 3M TESA.50M Per Roll x 6MM Wide

Cable Tie 4.8mm Wide 171.5mm Long 5.3mm Fixing Hole Dia

M Screw Torx P/H M3x6MM ST ZP

M Screw Torx M3x10MM ST ZP

M Screw Pan Supa M4x12MM ST BLK

Screw Hex Head M5X12MM Black

Bolt Hex HD M6x50MM Mczp

Screw Taptite M2.5X12MM Pan Torx(T8) Steel Zinc Plate Black

Screw Sftp Torx No.6x6MM BLK

Screw Self-Tapping-Sems NO.4 X 9MM Pan Torx-Slot Steel Zinc-Plate BLK

Nut M4 Full ST ZP

Nut M4 Waisted BR SC

Washer M4 Int Shakeproof BLK

Bright Washer M6 (Mudguard O.D. 20mm)

Snap Rivet Black Plastic

A85 Phono Stage PCB

Cable FFC 22 Way A85 Disp - Pre

Cable FFC 0.1" 14WAY A85 Disp - Pwr

6 Way Amp CT 600MM

Cable A85 Pre - Pwr

Cable A85 Phono - Preamp

A32 FMJ Amp Display Board Assembly

C30 Preamp PCB Assembly

4-way MOLEX cable 22AWG 190mm long

Transformer Toroid C30 115/230V

Transformer Toroid C30 100V

C30 Preamp PSU PCB 115/230V

C30 7.1 multichannel expansion module

1

2

4

3

BLACK CASE PARTS

Cover Black FMJ C30

FMJ Black Volume Knob

M Screw Torx M4x6MM ST BLK

FMJ Black C30 Fascia Complete Assembly

Made up of the following parts :-

Front Panel Assembly Black FMJ C30

FMJ A32 Sub-Panel Assy

8Q006 FMJ Tact Button Spring

HL25AB FMJ Tact Button Fastener

Button FMJ Black Tac

Badge Metal Arcam FMJ

FMJ I/R Window Assy (STD. SCREENED)

Display Window FMJ A32

M/C Pan Supa M3X4 Stzp

Lightpipe FMJ

Button Tact FMJ A32 Black Low Profile

Button Power FMJ A32 Black

E847CP

E839AY

HA4V06S

E185AY

E188AY

E083AY

8Q006

HL25AB

E849PM

E830MC

E933AY

E884MC

HA3A04A

E847PM

E895PM

E894PM

C30 Mechanical and packing parts list

Part no Item no Description

1

2

4

3

SILVER CASE PARTS

Cover Silver FMJ C30

FMJ Silver Volume Knob

M Screw Torx M4x6MM Stainless Steel

FMJ Silver C30 Fascia Complete Assembly

Made up of the following parts :-

Front Panel Assembly Silver FMJ C30

FMJ A32 Sub-Panel Assy

8Q006 FMJ Tact Button Spring

HL25AB FMJ Tact Button Fastener

Button FMJ Tac

Badge Metal Arcam FMJ

FMJ I/R Window Assy (STD. SCREENED)

Display Window FMJ A32

M/C Pan Supa M3X4 Stzp

Lightpipe FMJ

Button Silver FMJ A32 Low Profile Tact

Button Power FMJ A32 Silver

CAM Products 2000(TM): L928PB_B.GTO

C30 Preamplifier display cct board L928AY issue B3.0

Designator Part

C62

C63

D1

D2

D3

DC1

DC2

DISP1

C50

C51

C52

C53

C54

C55

C60

C61

C41

C43

C44

C45

C46

C47

C48

C49

C34

C37

C38

C39

C40

IC1

IC2

IC5

IC6

IC7

IC8

IC11

LED1

LED2

C17

C25

C26

C28

C29

C31

C32

C33

C9

C10

C11

C12

C13

C14

C15

C16

C1

C2

C3

C4

C5

C6

C7

C8

Description

2C018

2C018

2C410

2C410

2C410

2C410

2C410

2C410

MLC 18P 50V X7R 10% SM

MLC 18P 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

2C410

2C410

2M610

2C410

2C410

2M610

2C410

2C410

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

ELST 10U 50V SM

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

ELST 10U 50V SM

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

2C410

2C410

2M610

MLC 100N 50V X7R 10% SM

MLC 100N 50V X7R 10% SM

ELST 10U 50V SM

2M610

2M710

ELST 10U 50V SM

ELST 100U 25V SM

2C010A MLC 10P 50V NPO 10% SM

2C010A MLC 10P 50V NPO 10% SM

2N722 ELST 220U 16V

2N722

2C210

2C210

2C210

2C210

2C210

2C210

2C210

2C210

2C210

2C210

2C210

2C210

ELST 220U 16V

MLC 1N0 50V X7R 10% SM












2W110X4 CAP PACK NPO 0612 4X100P 50V 5%










3C13304 ZENER 33V BZX55C33V

3AS16W DIODE SS SM BAS16W

3AS16W DIODE SS SM BAS16W

E916PM DISPLAY CRADLE E916PM

E916PM DISPLAY CRADLE E916PM

B1013 MN12818A VFD ITRON

5H3048 H8/3048 128K FLASH MICROCONTROLLER

5H1233A IC MICRO RESET DS1233 SM

5G2402 IC CMOS EPROM 24C02 SM

5M393AD IC COMPARATOR SM DUAL LM393A



5M8532 DUAL OUTPUT SINGLE SUPPLY AMP AD8532

3D001 LED GREEN 5MM

3D001 LED GREEN 5MM


Designator Part

R32

R33

R34

R35

R36

R37

R38

R39

R24

R25

R26

R27

R28

R29

R30

R31

R16

R17

R18

R19

R20

R21

R22

R23

R11

R12

R13

R14

R15

R40

R41

R42

R43

R44

R45

R46

R47

R48

R3

R4

R5

R6

R7

R8

R9

R10

LED11

Q1

Q2

Q3

Q4

Q5

R1

R2

LED3

LED4

LED5

LED6

LED7

LED8

LED9

LED10

1A310

1A133

1A115

1A310

1A310

1A310

1A212

1A222

1A133

1A133

1A310

1A310

1A310

1A310

1A310

1A133

1A310

1A310

1A310

1A310

1A310

1A310

1A133

1A133

1A133

1A133

1A133

1A133

1A133

1A247

1A410

1A410

1A410

1A410

1A310

1A212

1A247

1A000

1A310

1A310

1A310

1A310

1A310

1A310

1A310

1A310

3D006

4A847

4A847

4A847

4A847

4B179

1A310

1A310

3D001

3D001

3D001

3D001

3D001

3D001

3D001

3D001

Description

LED GREEN 5MM

LED GREEN 5MM

LED GREEN 5MM

LED GREEN 5MM

LED GREEN 5MM

LED GREEN 5MM

LED GREEN 5MM

LED GREEN 5MM

LED RED/GREEN 3MM L-93WEGW

TRANS LF SS N SM BC847B




NPN TRANS MP BD179

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 330R

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 330R

RES SM W4 2% 10K

RES SM W4 2% 330R

RES SM W4 2% 150R

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 1K2

RES SM W4 2% 2K2

RES SM W4 2% 4K7

RES SM W4 2% 100K

RES SM W4 2% 100K

RES SM W4 2% 100K

RES SM W4 2% 100K

RES SM W4 2% 10K

RES SM W4 2% 1K2

RES SM W4 2% 4K7

RES SM W4 2% 0R0


Designator Part

SW4

SW5

SW6

SW7

SW8

SW9

SW10

SW11

SP9

SP10

SP101

SP102

SP103

SW1

SW2

SW3

SP1

SP2

SP3

SP4

SP5

SP6

SP7

SP8

RX1

SK1

SK2

SK3

SK4

SW12

SW13

SW14

SW15

SW16

SW17

SW18

X1

R69

R70

R71

R72

R73

R74

R75

R76

R57

R58

R59

R64

R65

R66

R67

R68

R49

R50

R51

R52

R53

R54

R55

R56

Description

A1505

A1505

A1505

A1505

A1505

A1505

A1211

7X040

1A822

1A822

1A822

1A822

1A310

1A310

1A310

1A310

1A310

1A000

1A000

1A110

1A110

1A110

1A110

1A310

1A310

1A310

1A110

1A110

1A110

1H233

1A310

1A310

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 1% 100R 1206

RES SM W4 1% 100R 1206

RES SM W4 1% 100R 1206

RES MF W4 1% 3K3

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 0R0

RES SM W4 2% 0R0

RES SM W4 1% 100R 1206

RES SM W4 1% 100R 1206

RES SM W4 1% 100R 1206

RES SM W4 1% 100R 1206

RES SM W4 2% 10K

RES SM W4 1% 2R2 1206

RES SM W4 1% 2R2 1206

RES SM W4 1% 2R2 1206

RES SM W4 1% 2R2 1206

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

RES SM W4 2% 10K

B2107 REMOTE RX PIC-26043TM2 38KHZ

8K7014A FFC 14W 2.54MM HOR PTH

8K2005 5-WAY AMP CT CONN

8K8022A 22-WAY FFC CONN HORIZ 1MM PTH

8K6315 14 WAY DIL HEADER HORIZ

F195

F195

F195

F195

F195

F195

F195

F195

LED SPACER

LED SPACER

LED SPACER

LED SPACER

LED SPACER

LED SPACER

LED SPACER

LED SPACER

A1505

A1505

A1505

A1505

A1505

A1505

A1505

A1505

F195

F195

F163

LED SPACER

LED SPACER

STICKY PAD S/A 10 X 15mm

F163 STICKY PAD S/A 10 X 15mm

E822AP IR RX SUPPORT PAD

A1505 TACT SWITCH SM SDTM-610-NTR

A1505

A1505

TACT SWITCH SM SDTM-610-NTR
















EC16B2414

XTAL 16MHZ SM GSX49-4

C30 Preamplifier 7.1 multichannel cct board L955AY issue 1.0

Designator Part

C211

C212

C213

C214

C215

C216

C217

C218

C219

C220

C221

C222

C223

C203

C204

C205

C206

C207

C208

C209

C210

C127

C128

C129

C130

C132

C200

C201

C202

C224

C225

C226

C227

C228

C229

C114

C115

C116

C117

C118

C119

C120

C121

C122

C123

C124

C125

C126

C100

C101

C102

C103

C104

C105

C106

C107

C109

C110

C111

C112

C113

2L110

2L110

2L110

2L110

2L110

2L110

2L110

2L110

2L110

2J410

2J410

2J410

2J410

2L110

2J410

2L110

2J410

2L110

2JA310

2JA310

2JA310

2JA310

2L110

2L110

2L110

2L110

2L110

2L110

2L110

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2L110

2M710

2M610

2L110

2J410

2L110

2L110

2L110

2L110

2N747

2N747

2KA433

2N510

2N510

2KA410

2N722

2N710

2J410

2J410

2J410

2J410

2J410

Description

Capacitor Radial Electrolytic Dia 10mm Pitch 5mm 470UF 25V


Capacitor Boxed Polyester 5mm Pitch 5% 100VDC 330N




Capacitor Radial Electrolytic Dia 6.3mm Pitch 5mm 220UF 16V


Capacitor SM 0805 X7R Ceramic 10% 50V 100N









Capacitor SM 0805 NPO Ceramic 5% 100V 100P

Capacitor Surface Mount Electrolytic Dia 8mm 100UF 25V












































Designator Part

C357

C358

C359

C360

C361

C362

C363

C364

C365

C366

C367

C368

C369

C349

C350

C351

C352

C353

C354

C355

C356

C341

C342

C343

C344

C345

C346

C347

C348

C370

C371

C372

C373

C374

C375

C328

C329

C330

C331

C332

C333

C334

C335

C336

C337

C338

C339

C340

C230

C231

C304

C305

C306

C307

C312

C313

C318

C319

C323

C324

C326

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2L022

2L022

2L022

2L022

2L022

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2L022

2L022

2L022

2K510

2K510

2KA447

2M610

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2J410

2M610

2M610

2M610

2M610

2M610

2M610

2M610

2M610

2M610

2M610

2M610

Description



























































Capacitor Boxed Polyester 5mm Pitch 10% 63V 1U0

Capacitor Boxed Polyester 5mm Pitch 10% 63V 1U0



Designator Part

D402

D403

D404

D405

D406

D407

HS100

IC100

IC200

IC201

IC202

IC203

IC204

C421

C422

C423

C424

C425

C426

C427

C428

C429

C108 NF

CON100

CON101

CON400

D100

D400

D401

IC205

IC300

IC301

IC302

IC303

IC304

C408

C409

C410

C411

C412

C413

C414

C415

C416

C417

C418

C419

C420

C376

C377

C378

C379

C380

C400

C401

C402

C403

C404

C405

C406

C407

Description

2M610

2M610

2L033

2L033

2L033

2L033

2L033

2L033

2L033

2L033

2J410

2J410

2J410

2KA447

2KA447

2KA447

2KA447

2KA447

2M610

2M610

2M610

2M610

2M610

2M610

2M610

2M610



























2J410

2J410

2J410

2J410

2J410

2JA310

2JA310

2L110

2L110

2J410

8K6604

8K6314

8K8030B

3F54S

3AV99W

3AV99W











Con KK Series 0.1in Vertical Friction Lock Hdr 4WAY

Con Hdr Dual ROW 0.1IN Vertical 14WAY

Con 1.00MM Vertical FFC 30WAY 52806 Series

Diode Schottky BAT54S SOT-23 Package

Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package


3AV99W

3AV99W

3AV99W

3AV99W

3AS16W

3AS16W

F007

L023AY





Diode Surface Mount Small Signal BAS16W SOT-23 Package


Heatsink TO-220 6043PB 23 Degc/W Clip ON

Programmed PIC16F627T For 7.1 Multichannel Module

5K4053HCT IC Triple 2 Channel Analogue Mux 74HCT4053 SO-16






5B2134 Opamp OPA2134UA SO-8 Package

5B2134 Opamp OPA2134UA SO-8 Package

5B2134

5B2134

5B2134

Opamp OPA2134UA SO-8 Package




Designator Part

R206

R207

R208

R209

R210

R211

R212

R213

R214

R215

R216

R217

R218

R116

R117

R200

R201

R202

R203

R204

R205

R108

R109

R110

R111

R112

R113

R114

R115

R219

R220

R221

R222

R223

R224

IC305

IC306

IC307

IC308

IC309

5B2134

5B2134

5B2134

5A2310

5A2310

IC310

IC311

IC400

IC401

IC402

IC403

5A2310

5A2310

5B2134

5B2134

5B2134

5B2134

ITEM100-1 L955PB

ITEM101-1 E802AP

ITEM102-1 E802AP

ITEM103-1 E802AP

ITEM104-1 E802AP

ITEM105-1 E802AP

L100 7C033B

R100 1M310

R101

R102

1M347

1M110

R103

R104

R105

R106

R107

1M210

1M210

1M210

1M210

1M210

1M110

1M110

1M110

1M110

1M110

1M110

1M110

1M110

1M110

1M110

1M322

1M322

1M322

1M000

1M110

1M110

1M110

1M110

1M110

1M110

1M110

1M110

1M110

1M310

1M210

1M133

1M133

1M133

1M310

1M322

1M322

1M322

1M322

1M322

1M322

Description




IC Audio Digital Stereo Volume Ctrl








Blank PCB 7.1 Mch PCB






="Inductor 33UH 10% 1.17A

Resistor 0805 Surface Mount 0.125W 1% 10K


Resistor 0805 Surface Mount 0.125W 1% 100R

Resistor 0805 Surface Mount 0.125W 1% 1K0













Resistor 0805 Surface Mount 0.125W 1% 0R0




























Designator Part

R409

R410

R411

R412

R413

R414

R415

R416

R417

R418

R419

R420

R421

R401

R402

R403

R404

R405

R406

R407

R408

R320

R321

R322

R323

R324

R325

R326

R400

R422

R423

R424

R425

R440

R441

R307

R308

R309

R310

R311

R312

R313

R314

R315

R316

R317

R318

R319

R225

R226

R227

R228

R229

R230

R231

R301

R302

R303

R304

R305

R306

1M310

1M310

1M310

1M310

1M310

1M310

1M310

1M310

1M310

1M047

1M047

1M047

1M047

1M310

1M310

1M310

1M310

1M310

1M310

1M310

1M310

1M510

1M510

1M510

1M510

1M510

1M510

1M510

1M310

1M047

1M047

1M047

1M047

1M247

1M247

1M410

1M410

1M410

1M410

1M322

1M322

1M322

1M322

1M322

1M322

1M322

1M322

1M510

1M322

1M322

1M322

1M322

1M322

1M322

1M322

1M410

1M410

1M410

1M410

1M410

1M410

Description


























Resistor 0805 Surface Mount 0.125W 1% 1M0





































Designator Part

R442

REG100

REG101

RLY400

RLY401

RLY402

SKT200

SKT201

SKT202

SKT203

SKT400

SKT401

TR400

TR401

X100 NF

Description

1M000 Resistor 0805 Surface Mount 0.125W 1% 0R0

5D79L05S IC Voltage Regulator -5V L79L05ACD SO-8 Package

5D7805 IC Voltage Regulator +5V L7805CV TO-220 Package

A216

A216

Relay 2P2T 5V SM

Relay 2P2T 5V SM

A216

8D225

8D225

8D225

8D225

8D226

8D225

4A849B

4A849B

7W005

Relay 2P2T 5V SM

Phono Skt 4-WAY Gold




Phono Skt 2-WAY Vert Gold


Transistor BC849B SOT23 Package


Ceramic Resonator 4.00MHz

C30 Preamplifier PSU/main cct board L958AY issue 2.0

Designator Part

C43

C44

C100

C101

C102

C103

C104

C105

C106

C107

C108

C109

C110

C35

C36

C37

C38

C39

C40

C41

C42

C27

C28

C29

C30

C31

C32

C33

C34

C111

C112

C113

C114

C115

C116

C22

C23

C24

C25

C26

C14

C15

C16

C17

C18

C19

C20

C21

C6

C7

C8

C9

C10

C11

C12

C13

C1

C2

C3

C4

C5

2N810C

2J410

2P710AC

2P710AC

2P710AC

2P710AC

2KA310

2KA310

2KA310

2KA310

2L147

2L147

2L147

2J410

2J410

2J410

2J410

2J410

2J410

2N710

2P622P

2P622P

2P622P

2P622P

2N710B

2L110

2L115

2L115

2L168

2L147

2J410

2L110

2L110

2L110

2L110

2N810A

2N610

2J410

2KA447

2KA447

2KA447

2KA447

2N910

2N910

2J410

2J410

2J410

2J410

2K233

2K233

2K233

2K233

2D422

2J410

2J410

2J410

2N833

2P710A

2P710A

2P710A

2P710A

Description

Capacitor X1 Y2 Rated Ceramic 7.5mm Pitch 3N3 250V




Capacitor X2 Boxed Polypropylene 22.5mm Pitch 275V 220NF




Capacitor Radial Electrolytic Dia 16mm Pitch 7.5mm 3300UF 25V

Capacitor Radial Electrolytic Oscon SA 100UF 20V











Capacitor Radial Electrolytic Dia 30mm Claw Mount 10,000UF 50V

Capacitor Radial Electrolytic Dia 30mm Claw Mount 10,000UF 50V












Capacitor Radial Electrolytic Oscon SP 22UF 20V











Capacitor Radial Electrolytic Elna ROA Series 100UF 25V


















Designator Part

D13

D14

D15

D16

D17

D5

D6

D7

D8

D9

D10

D11

D12

D18

D19

D20

D21

D22

D23

CON2

CON3

CON4

CON5

CON6

CON7

CON8

CON100

CON101

CON102

CON103

CON104

D1

D2

D3

D4

C130

C131

C132

C133

C134

C135

C136

C137

C138

C139

C140

C141

CON1

C117

C118

C119

C120

C121

C122

C123

C124

C125

C126

C127

C128

C129

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3AS16W

3BYV27

8K2308

8K2306

8K2304

8K6604

8K6604

8K6604

8K7014

8K2404

8K2406

8K2406

8K3101

8K3101

3F5819

3F5819

3F5819

3F5819

3BYV27

3BYV27

3BYV27

3BYV27

3BYV27

3BYV27

2L110

2L110

2L110

2JA310

2P710AC

2P710AC

2J410

2J410

2L110

2L110

2L110

2JA310

8Q003

2JA310

2N747

2N510

2N510

2L033

2L033

2N722

2N722

2N610

2P710AC

2P710AC

2J410

2J410

Description


























Con Cage Clamp 1WAY

Con Minifit HCS 8WAY






Con 2.54MM Vertical FFC 14WAY

Con CT Series Vertical 4WAY



XLR PCB Male Neutrik NC3MBH-B

XLR PCB Male Neutrik NC3MBH-B

Diode Schottky 1N5819 DO-41 Package
















Diode SBYV27-200 DO-15 Package








Designator Part

R1

R2

R3

R4

R5

R6

ITEM9-1

ITEM10-1

ITEM11-1

ITEM12-1

ITEM13-1

ITEM14-1

ITEM15-1

ITEM16-1

ITEM17-1

L1

L100

L101

OPTO1

HS4

HS5

HS6

IC1

IC100

IC101

IC102

IC103

IC104

ITEM1-1

ITEM2-1

ITEM3-1

ITEM4-1

ITEM6-1

ITEM7-1

ITEM8-1

FS4

FS5

HS1

HS2

HS3

DZ1

DZ2

DZ3

FHLDR1

FHLDR2

FHLDR3

FHLDR4

FS3

D24

D25

D100

D101

D102

D103

D104

D105

D106

D107

D108

DBR1

DBR2

E826AP

E826AP

E826AP

E826AP

F022

F022

F022

F022

8M101

7F004

7F004

7F004

5T4N35

F004

F008

F008

5B972

5B797

5B797

5A4880

5B135

5B135

L958PB

F006

F006

F006

F006

F006

E802AP

1KA515

1M000

1M127

1M168

1M222

1M222

3CW32V7

3CW315V

3CW33V9

8S004

8S004

8S004

8S004

C54125

C54125

C3501

F008

F008

F008

3BYV27

3AS16W

3AV99W

3AV99W

3AV99W

3AV99W

3AS16W

3AV99W

3AV99W

3AV99W

3AV99W

3BW02

3BW02

Description












Diode Bridge Rectifier W02G Plastic Package

Diode Bridge Rectifier W02G Plastic Package

Zener Diode 0.25W Surface Mount BZX84C2V7 SOT-23 Package

Zener Diode 0.25W Surface Mount BZX84C15V SOT-23 Package

Zener Diode 0.25W Surface Mount BZX84C3V9 SOT-23 Package

Fuseholder 20MM PCB

Fuseholder 20MM PCB

Fuseholder 20MM PCB

Fuseholder 20MM PCB

Fuse Bussmann S504 T250mA

Fuse Bussmann S504 T250mA

Fuse Littelfuse T500mA SM

Heatsink TO-220 SW50-2 8.8 Deg C/W



Heatsink TO-220 PF752 23.7 Degc/W



Opamp TS972ID SO-8 Package

Opamp AD797AR SO-8 Package

Opamp AD797AR SO-8 Package

IC Headphone Amp Nat Semi LM4880M SO-8 Package

IC Balanced Driver Burr-Brown DRV135UA SO-8 Package

IC Balanced Driver Burr-Brown DRV135UA SO-8 Package

Blank PCB C30 Preamp PSU















Earth Lead Assy 75MM

Ferrite Bead SM1206 70R@100MHz



Opto Isolator 4N35

Resistor Metal Glazed 0.5W 5% 1M5







Designator Part

R109

R110

R111

R112

R113

R114

R115

R116

R117

R118

R119

R120

R121

R101

R102

R103

R104

R105

R106

R107

R108

R33

R34

R35

R36

R37

R38

R39

R100

R122

R123

R124

R125

R1000

REG4

R28

R29

R30

R31

R32

R20

R21

R22

R23

R24

R25

R26

R27

R12

R13

R14

R15

R16

R17

R18

R19

R7

R8

R9

R10

R11

1M310

1M310

1M347

1M347

1E847

1E847

1M115

1M410

1M410

1M310

1M310

1M047

1M047

1M110

1M110

1M110

1M047

1M047

1M315

1M315

1M822

1M447

1M215

1M247

1M268

1M000

1M000

1M147

1M110

1M047

1M047

1M115

1M010

1H210

5D7805

1M110

1M110

1M110

1M110

1M110

1M010

1M233

1M010

1M322

1M427

1M212

1M218

1M468

1M222

1M222

1M222

1M222

1M310

1M310

1M310

1M233

1M233

1M233

1M068

1M068

1M110

Description















































Resistor Carbon Film 1W 5% 4R7

Resistor Carbon Film 1W 5% 4R7












Resistor Metal Film 0.25W 1% 1K0

IC Voltage Regulator +5V L7805CV TO-220 Package


Designator Part

SKT100

SKT101

SW1

TX1

TX1

TR1

TR2

TR3

TR4

TR5

TR6

TR100

REG3

REG2

REG5

REG6

REG1

RLY1

RLY100

RLY101

RLY102

RLY103

SH1

SKT1

SKT2

Description

5D317T

5D317T

5D337

5D337

5D1086A

A219

A215

A215

A215

A215

E5402

8A001

8D302

IC Voltage Regulator ADJ LM317T TO-220 Package


IC Voltage Regulator Neg ADJ LM337T TO-220 Package

IC Voltage Regulator Neg ADJ LM337T TO-220 Package

IC Voltage Regulator ADJ LM1086CT-ADJ TO-220 Package

Relay 2P2T 5V

Relay 2P2T 12V SM

Relay 2P2T 12V SM

Relay 2P2T 12V SM

Relay 2P2T 12V SM

Shield EMC IEC Inlet Mains

Mains IEC Inlet 3PIN PCB Ins

Con Jack 3.5mm Dual Mono

8D225

8D301

A1404

7A9301

L907TX

4A849B


Con Jack 6mm Stereo

Switch Slide Volt Sel

Transformer PCB mount 9V+9V 3VA 115/230V

Transformer PCB mount 9V+9V 3VA 100V


4A849B Transistor BC849B SOT23 Package

4AFMMT497 Transistor FMMT497 SOT23 Package

4B179 Transistor BD179 TO126 Package

4AFMMT497 Transistor FMMT497 SOT23 Package

4D10KN Digital Transistor MMUN2211LT1 SOT23 Package

4B179 Transistor BD179 TO126 Package

C30 Preamplifier pre-amp cct board L965AY issue 1.2

Designator Part

C142

C143

C144

C145

C146

C147

C148

C149

C150

C151

C152

C153

C154

C134

C135

C136

C137

C138

C139

C140

C141

C126

C127

C128

C129

C130

C131

C132

C133

C155

C156

C157

C158

C159

C160

C113

C114

C115

C116

C117

C118

C119

C120

C121

C122

C123

C124

C125

C100

C101

C102

C103

C104

C105

C106

C107

C108

C109

C110

C111

C112

Description

2C210

2DA147

2DA147

2DA147

2C410

Capacitor SM 1206 NPO Ceramic 50V 5% 1N0

Capacitor Boxed Polypropylene 5mm Pitch 100V 5% 470P



Capacitor SM 1206 X7R Ceramic 50V 10% 100N

2C410

2C410

2C410

2C110

2C110

2N710




Capacitor SM 1206 NPO Ceramic 50V 5% 100PF



2P610CC Capacitor Radial Electrolytic Elna ROA 10UF 50V

2K447 Capacitor Boxed Polyester 5mm Pitch 10% 63V 470N


2D222W Capacitor Boxed Polyprop 5mm Pitch 100V 5% 2N2

2C022 Capacitor SM 1206 NPO Ceramic 100V 5% 22PF



2C410 Capacitor SM 1206 X7R Ceramic 50V 10% 100N

2C310

2N610

Capacitor SM 1206 X7R Ceramic 50V 10% 10NF


2C210

2DA147

2DA147

2DA147

2C410






2DA147

2C410

2C410

2C410

2C410

2KA410

2C022

2C022

2K447

2K447

2C410

2C410

2P622P

2C410

2C410

2C410

2C110

2C110

2N710










2D222W Capacitor Boxed Polyprop 5mm Pitch 100V 5% 2N2

2C022 Capacitor SM 1206 NPO Ceramic 100V 5% 22PF



2C210 Capacitor SM 1206 NPO Ceramic 50V 5% 1N0

2DA147

2DA147



2C410

2C410

2P622P

2C022

2C022

2C210









Capacitor Boxed Polyester 5mm Pitch 10% 63V 470N












Designator Part

C310

C312

C313

C314

C315

D100

D101

D102

D103

D104

D105

D106

D107

C302

C303

C304

C305

C306

C307

C308

C309

C187

C188

C189

C190

C191

C192

C193

C300

D108

D109

D110

D111

D112

D113

C174

C175

C176

C177

C178

C179

C180

C181

C182

C183

C184

C185

C186

C161

C162

C163

C164

C165

C166

C167

C168

C169

C170

C171

C172

C173

Description

2C410

2C410

2C410

2C410

2C410

2C410

2C410

2C410

2C410

2C410

2C410

2C410

2C410

2DA147

2DA147

2DA147

2C210

2DA147

2DA147

2KA410

2C410

2C410

2C410

2C410

2C410

2C410



























2N610

2P622P

2P622P

2P622P

2P622P

2K447

2K447

2N810C

2P622P

2P710A

2C410

2KA410

2P710A

2K447

2C410

2C410

















2N810C

2P622P

2P710A




2KA410

2KA410



3AV99W Diode Dual Surface Mount Small Signal BAV99 SOT-23 Package















Designator Part

R111

R112

R113

R114

R115

R116

R117

R118

R119

R120

R121

R122

R123

R103

R104

R105

R106

R107

R108

R109

R110

Q301

Q303

Q305

Q306

Q307

R100

R101

R102

R124

R125

R126

R127

R128

R129

D305

D306

D307

D308

D310

D311

F300

F301

ITEM1-1

ITEM2-1

PCB1

Q100

Q300

D114

D115

D116

D117

D118

D119

D120

D121

D122

D300

D301

D302

D304

Description

1A222

1A322

1A322

1A322

1A227

1A227

1A256

1A322

1A322

1A322

1A322

1A822

1A822

1A410

1A410

1A410

1A510

1A510

1A047

1A047

1A222

4B5171

4J112

4B1930

4A846B

4A856B

1A210

1A210

1A210

1A822

1A210

1A210

1A210

1A410

1A410







3AS16W Diode Surface Mount Small Signal BAS16W SOT-23 Package



3BS1D Diode Surface Mount S1D








3CW315V Zener Diode 0.25W Surface Mount BZX84C15V SOT-23 Package

3CW315V Zener Diode 0.25W Surface Mount BZX84C15V SOT-23 Package

C3202

C3202

Fuse Littelfuse T2A SM

Fuse Littelfuse T2A SM

E826AP

E826AP

L937PB

4A849B

4J112



Blank PCB A32 Preamp PCB


Transistor Jfet N Channel J112 TO-92 Package

Transistor 2SC5171 TO220 Package

Transistor Jfet N Channel J112 TO-92 Package

Transistor 2SA1930 TO220 Package


































Designator Part

R172

R173

R174

R175

R176

R177

R178

R179

R180

R181

R182

R183

R184

R164

R165

R166

R167

R168

R169

R170

R171

R156

R157

R158

R159

R160

R161

R162

R163

R185

R186

R187

R188

R189

R190

R143

R144

R145

R146

R147

R148

R149

R150

R151

R152

R153

R154

R155

R130

R131

R132

R133

R134

R135

R136

R137

R138

R139

R140

R141

R142

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A410

1A310

1A110

1A510

1A510

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A210

1A210

1A210

1A410

1A410

1A410

1A322

1A322

1A022

1A047

1A047

1A310

1A210

1A210

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A322

1A410

1A510

1A510

1A047

1A047

1A222

1A222

1A322

1A322

1A322

1A227

1A227

1A256

Description































































Designator Part

Z103

Z104

Z105

Z106

Z107

Z108

Z109

Z110

SK101

SK102

SK103

SK300

SK301

Z100

Z101

Z102

Z111

Z112

Z113

Z114

Z115

Z116

Z117

Z301

R204

R300

R302

R303

R304

R307

RLY100

SK2

SK3

SK4

SK5

SK6

SK100

R191

R192

R193

R194

R195

R196

R197

R198

R199

R200

R201

R202

R203

Description

1A210

1A410

1A410

1A410

1A210

1A210

1A410

1A410

1A410

1A822

1A822

1A822

1A247














1A310

1A133

1A212

1A147

1A133

1A122

A216

8D225







Relay 2P2T 5V SM


8D225

8D225

8D225




8D226 Phono Skt 2-WAY Vert Gold

8K8022B Con 1.00MM Vertical FFC 22WAY 52806 Series

8K8330

8K2404

8K2408

Con 1.00MM Vertical SM FFC 30WAY



8K2304

8K6604



5S408DY IC Analogue Mux DG408DY SO-16 Package






5S413DY IC Quad Analogue Switch DG413DY SO-16 Package

5AVSDVC IC Audio Dig Volume Control MAS9116ASBA-T SO-16W Package

5A1844 IC Quad Digital Pot 10K Lin SO-20

5B072D

5B072D

Opamp TL072CD SO-8 Package


5B072D

5B072D

5B072D

5B072D

5B2134

5B2134

5B2134

5D317T









C30 Preamplifier phono cct board L870AY issue 2.0

Designator Part Description

D100

D101

D102

D200

D201

D202

IC100

IC200

PCB1

R100

R101

R102

R104

C212

C213

C215

C216

C217

C218

C219

C220

C204

C205

C206

C207

C208

C209

C210

C211

R105

R106

R108

R109

R110

R111

R112

R113

R114

R115

R116

C111

C112

C113

C115

C116

C117

C118

C119

C120

C200

C201

C202

C203

C1

C100

C101

C102

C103

C104

C105

C106

C107

C108

C109

C110

1H110

1H110

1H347

1H312

1H312

1H356

1H410

1H410

1H410

1H315

1H522

2A410

2N622

CERD 100N 63V -20% +80% RA

ELST 22U 63V

2D210 PPRO 1N0 5% 63V RA

2P710AS ELEC 100U 25V SILMIC


2K410 PEST 100N 63V 10%

2K410 PEST 100N 63V 10%

2K410

2K410

PEST 100N 63V 10%

PEST 100N 63V 10%

2D147W PPRO W 470P 63V 5% RA

2D110W PPRO W 100P 63V 5% RA

2D247N PPRO 4N7 63V 5% RA

2D310

2D310

2K510

PPRO 10N 63V 1% AXIAL


CAP MKS2 1U0 16V 10%

2D213N PPRO 1N3 63V 5% RA

2D147W PPRO W 470P 63V 5% RA

2D147W PPRO W 470P 63V 5% RA

2U610 ELST NON POLAR 10UF 35V

2D110N PPRO 100P 63V 5% RA

2D210

2N622

2D210

PPRO 1N0 5% 63V RA

ELST 22U 63V

PPRO 1N0 5% 63V RA



2K410

2K410

2K410

PEST 100N 63V 10%

PEST 100N 63V 10%

PEST 100N 63V 10%

2K410 PEST 100N 63V 10%

2D147W PPRO W 470P 63V 5% RA

2D110W PPRO W 100P 63V 5% RA

2D247N

2D310

PPRO 4N7 63V 5% RA


2D310

2K510

2D213N


CAP MKS2 1U0 16V 10%

PPRO 1N3 63V 5% RA

2D147W PPRO W 470P 63V 5% RA

2D147W PPRO W 470P 63V 5% RA

2U610 ELST NON POLAR 10UF 35V

2D110N

2D210

PPRO 100P 63V 5% RA

PPRO 1N0 5% 63V RA

3A4148

3A4148

3A4148

3A4148

3A4148

SSDIODE 1N4148 75V

SSDIODE 1N4148 75V

SSDIODE 1N4148 75V

SSDIODE 1N4148 75V

SSDIODE 1N4148 75V

3A4148

5B071

5B071

SSDIODE 1N4148 75V

IC FET OPAMP TL071

IC FET OPAMP TL071

L870PB_2 PRINTED CIRCUIT BOARD

1H133 RES MF W4 1% 330R

1H110 RES MF W4 1% 100R

1H110

1H110

RES MF W4 1% 100R

RES MF W4 1% 100R

RES MF W4 1% 100R

RES MF W4 1% 100R

RES MF W4 1% 47K

RES MF W4 1% 12K

RES MF W4 1% 12K

RES MF W4 1% 56K

RES MF W4 1% 100K

RES MF W4 1% 100K

RES MF W4 1% 100K

RES MF W4 1% 15K

RES MF W4 1% 2M2

C30 Preamplifier phono cct board L870AY issue 2.0

Designator Part Description

TR107

TR108

TR109

TR110

TR111

TR112

TR113

TR114

TR200

TR201

TR202

TR203

TR204

R219

R220

R221

R222

R223

R224

SK1

SK2

SW100

TR100

TR101

TR102

TR103

TR104

TR105

TR106

TR205

TR206

TR207

TR208

TR209

TR210

TR211

TR212

TR213

TR214

R205

R206

R208

R209

R210

R211

R212

R213

R214

R215

R216

R217

R218

R117

R118

R119

R120

R121

R122

R123

R124

R200

R201

R202

R204

4A1085

4A546

4A546

4A546

4A546

4A546

4A546

4A546

4A556

4A556

4A556

4A556

4A556

1H022

1H022

1H022

1H339

1H010

1H256

8D230

8K2408

A1013

4A556

4A556

4A556

4A556

4A556

4A556

4A1085

4A556

4A1085

4A1085

4A546

4A546

4A546

4A546

4A546

4A546

4A546

1H110

1H110

1H347

1H312

1H312

1H356

1H410

1H410

1H410

1H315

1H522

1H522

1H022

1H522

1H022

1H022

1H022

1H022

1H339

1H010

1H256

1H133

1H110

1H110

1H110

RES MF W4 1% 2M2

RES MF W4 1% 22R

RES MF W4 1% 22R

RES MF W4 1% 22R

RES MF W4 1% 22R

RES MF W4 1% 39K

RES MF W4 1% 10R

RES MF W4 1% 5K6

RES MF W4 1% 330R

RES MF W4 1% 100R

RES MF W4 1% 100R

RES MF W4 1% 100R

RES MF W4 1% 100R

RES MF W4 1% 100R

RES MF W4 1% 47K

RES MF W4 1% 12K

RES MF W4 1% 12K

RES MF W4 1% 56K

RES MF W4 1% 100K

RES MF W4 1% 100K

RES MF W4 1% 100K

RES MF W4 1% 15K

RES MF W4 1% 2M2

RES MF W4 1% 2M2

RES MF W4 1% 22R

RES MF W4 1% 22R

RES MF W4 1% 22R

RES MF W4 1% 22R

RES MF W4 1% 39K

RES MF W4 1% 10R

RES MF W4 1% 5K6

PHONO SKT 2-WAY HOR EMC GOLD

8-WAY AMP CT CONN

SW PUSH 4PCO

TRANS LF SS P BC556B






TRANS LF SS P 2SA1085


TRANS LF SS N BC546B






















ARCAM

All parts can be ordered via [email protected]

Pembroke Ave, Waterbeach, Cambridge, CB5 9PB, ENGLAND

TEL: +44(0) 1223 203 203 FAX: +44(0) 1223 863 384

Arcam C31 Pre Amplifier Service Manual

Service

Manual

C30 Pre-AmpliÞ er

Contents List

Circuit description

Circuit diagrams

Transformers

Exploded view diagram

Mechanical & packing parts list

Circuit board silk screen & parts list

C30 preamplifier circuit description.

C30 Preamp

C30 Preamp PCB

ARCAM

ARCAM

C30 Preamp PCB

ARCAM

A32 FMJ DISPLAY PCB

PCB

DRAWING TITLE

A32 FMJ AMP DISPLAY PCB

Notes:

A & R Cambridge Ltd.

Pembroke Avenue

Denny Industrial Centre

Waterbeach

Cambridge CB5 9PB

Filename

Circuit Diagram

ECO No.

INITIALS

DATE

CL

DESCRIPTION OF CHANGE

Sheet 1 of 2

DRAWING NO.

L928CT1

ISSUE

A32 FMJ AMP DISPLAY PCB

Circuit Diagram

Top Sheet

Control, Power and Interface

Output driver

C30 TRANSFORMER 100V

ARCAM

All parts can be ordered via [email protected]

Pembroke Ave, Waterbeach, Cambridge, CB5 9PB, ENGLAND

TEL: +44(0) 1223 203 203 FAX: +44(0) 1223 863 384

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