Index & Warnings

SERVICE MANUAL

Schematic Diagrams

CODE : 277322

GENERALMUSIC S.p.a. Sales Division:47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/957404 - fax0541/957404 - http://www.generalmusic.com

Notice

Service must be carried out by qualified personnel only. Any tampering carried out by unqualified personnel during the guarantee period will forfeit the right to guarantee.

For a correct operation of the instrument, after having switched off, be careful to wait at least 3 seconds before switching on again.

To improve the device's specifications, the schematic diagrams may be subject to change without prior notice.

Schematic Notes

All components marked by this symbol have special safety characteristics, when replacing any of these components use only manufacturer's specified parts.

The (µ) micro symbol of capacitance value is substituted by U. The (Ω) omega symbol of resistance value is substituted by E.

The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified. All resistors are 1/4W unless otherwise specified.

All switches shown in the "OFF" position. All DC voltages measured to ground with a voltmeter 20KOhm/V.

Soldering point.

Male connector.

Female connector.

M/F faston connector.

Test point.

Supply voltage.

Logic supply ground.

Analog supply ground.

Signal ground.

Chassis ground.

Flag joined with one or more flags with the same signal name inscribed.

ATTENTION

Observe precautions when handling electrostatic sensitive devices

1 r

r 2

-

+

+

-

3 r

r 4

5 r

r 6

Spare Parts

26

26

27

28

22

23

24

25

18

19

20

21

15

15

16

17

33

34

35

36

37

29

30

31

32

11

12

13

14

7

8

9

10

6

7

4

5

1

2

3

237064

237065

229030

347283

227038

177476

177325

150591

141202

141184

140526

140212

130297

130283

120319

120125

120111

120108

120099

120098

110614

110297

110291

180637

177474

887074

768030

768126

768043

768042

768128

767987

768002

667613

667610

659027

717054

347287

347286

347187

XLR MALE-FEMALE SIGNAL CABLE (mt. 1.5)

DISPLAY & SETTING BOARD

SIGNAL INPUTS CONTROLS & MIDI INTERFACE BOARD

POWER AMPLIFIER BOARD

POWER SUPPLY BOARD

CONVY PROCESSOR BOARD

MAINS FILTER BOARD (EU)

MAINS FILTER BOARD (US)

CONTROLS PANEL

METAL GRID

CYL. KNOB WHITE CAP

WOODEN CABINET

PLASTIC HANDLE

HANDLE SET

RUBBER HANDLE

TRANSFORMER (EU)

TRANSFORMER (US)

2" COMPRESSION DRIVER TWEETER

COMPRESSION DRIVER HORN

15" SPEAKER

AMPLIFIER HEAT SINK

STAND ADAPTOR

DISPLAY RED GLASS

XLR MALE SOCKET

XLR FEMALE SOCKET

GRAY BUTTON

DIN SOCKET

MAINS CORD (EU)

MAINS CORD (US)

WL 4x15 MAINS CORD SCREW

M5x35 MAINS CORD SCREW

M6x25 MAINS CORD SCREW

M5x30 MAINS CORD SCREW

M4x25 MAINS CORD SCREW

M4x20 MAINS CORD SCREW

MAINS INLET (EU)(US)

2 POLES 2 POS. SLIDE SWITCH

MAIN SWITCH (EU)(US)

ADHESIVE "GENERALMUSIC-LEM" BRAND

DRIVER HOLDER

Inputs Controls Panel

TOUR MASTER 15,2 ACTIVE - Technical Specification

COMPONENTS

HIGH section POWER HANDLING

(EIA RS-426A)

LOW section POWER HANDLING

(EIA RS-426A)

IMPEDANCE (nominal)

CONSTRUCTION

WEIGHT

DIMENSIONS

INPUT

A/D converter

D/A converter

Dynamic range

Sampling rate

CROSSOVER

SPEAKER SPECIFICATIONS

High

Low

High

Low

W continuous

W peak

W continuous

W peak ohm

2" driver with controlled directivity horn

15" low frequency speaker

75

240

8

4

800

2400

Cabinet: birch playwood

Finish: Black scratch-resistant paint

Protection grille: metal grille kg - lbs.

48,5 - 106,8 mm - in.

470x790x465 (LxAxP) - 185x311x183(WxHxD)

PROCESSOR SPECIFICATIONS

Sensitivity dB 0 (0.775Vrms)

Impedance

Frequency

Slope

Kohm bit bit dB

KHz

Hz dB/oct.

30 (balanced) - 15 (unbalanced)

18

18

105

48

1350

24

HIGH section POWER AMPLIFIER

LOW section POWER AMPLIFIER

AMPLIFIERS DISTORTION

CONTROLS

W continuous

W continuous

THD +Noise

150

650

<0,02%

VOLUME control

UP & DOWN selector buttons

MIDI button

DISPLAY

Earth Lift

2-digit display

CONNECTORS

POWER SUPPLY

SIGN/COMP LED

1 XLR-F +1 XLR-M (input + link)

MIDI in & MIDI THRU

230V ±15% 50/60Hz - 115V ±15% 50/60Hz

SYSTEM SPECIFICATIONS

Hz 50 ÷ 20000 (-10dB) FREQUENCY RESPONSE

SENSITIVITY SPL 1W/1m dB

MAX SPL continuous horizontal °

98

127

60 (±10) DISPERSION ANGLE vertical

DIRECTIVITY Factor (Q)

DIRECTIVITY Index Di dB

Note:the system specifications have been calculated using PRESET n.1 FLAT

40 (±7)

12

11 (+2.8 , -4)

BIAS ADJUSTMENT

Instruments, materials and tools:

- Audio Generator

- Dual Trace Oscilloscope

- Digital Voltmeter (or Multimeter)

- 4

Ω

500W and 8

Ω

100W Resistors

- Temperature Meter

Setup:

- Connect the Audio Generator to the input and set its output at 2KHz sinusoidal signal.

- Insert the temperature sensor through the interstize between the heatsink and R93 (PTC).

- Connect the 4

Ω

500W resistor to the amplifier output instead of the woofer speaker and 8

Ω

100W instead of tweeter speaker.

- Connect the oscilloscope probes (setting 20V/div.,1ms/div.) on the loads.

- Insert the voltmeter terminals on R107.

ADJUSTMENT PROCEDURE

1) Turn on the amplifier, pressing "UP" "DOWN" and "MIDI" simultaneously, check that the display shows "C".

2) Set the input signal to 0dB (0.775Vrms).

3) When the temperature has reaches about 45°C (109°F) set the signal input to minimum (0 or ).

4) Adjust the trimmer R111 to read a voltage of 6mV ±0.1 on the multimeter.

5) Check that the voltage across the R108 resistor has the same value.

6) At the same temperature condition, adjust the VR1 trimmer to read 2.2mV ±0.1 at R24 resistor.

7) Check that the voltage on the R25 resitor has the same value.

Veryfing:

1) Increase the input level to obtain an output voltage about of 0.5Vpp.

2) Check with the oscilloscope that the output signal is without a cross-talk distortion and eventually slightly

adjust the R111 or VR1 position until distortion disappears.

(Note: the voltage value across the R107 or R108 resistor must not exceed 10mV and the R24 or R25 resistor must

not exceed 4mV).

LIMITER ADJUSTEMENT

1) Increase the input level to 10dB, adjust the trimmer VR1 until clipping distortion disappears.

2) Verify tha the led change colour from green to red.

3) Re-connect the speakers instead of the 4

Ω

and 8

Ω

resistors.

7 r

SPARE PARTS LIST

ACCESSORIES

887074 XLR Female-Male Signal Cable (1.5mt)

277310 Owner’s Manual

ASSEMBLY

667613 Controls Panel

659027 Cyl. Knob White Cap

237064 Transformer (230V)

237065 Transformer (115V)

150591 Display Red Glass

110614 Mains Socket

110291 Power Switch

110037 T6.3A Fuse 6.3x32mm (US)

110035 T2.5A Fuse 6.3x32mm (US)

110034 T800mA Fuse 6.3x32mm (US)

110022 T8A Fuse 6.3x32mm (US)

110029 T4A Fuse 5x20mm (EU)

110023 T8A Fuse 5x20mm (EU)

110018 T6.3A Fuse 5x20mm (EU)

110015 T800mA Fuse 5x20mm (EU)

110014 T2.5A Fuse 5x20mm (EU)

667506 Left Side Bar

717054 Wooden Cabinet

667610 Metal Grid

347287 Plastic Handle

347286 Plastic Set

347283 2" Comprission Driver Horn

347187 Plastic Grip

229030 2" Compression Driver Tweeter

227038 15" Speaker

177474 Driver Holder

177325 Stand Adapter

130297 Mains Cord (EU Version)

130283 Mains Cord (US Version)

CONVY Processor Board

758128 CONVY Processor Board (PCB#313020)

230569 *

141059 *

FL5R200PNT EMI Coil For Signal

Con V M 9 C Mini Mate Burndy

141015 *

141013 *

141010 *

100943 *

Con V F 14c P=1.27 Mmatch Amp

Con V F 10c P=1.27 Mmatch Amp

4 Contacts Vert Female Connector

MC33079 Quad Ln Op Amp

100919 *

100737 *

100643 *

100642 *

100612 *

100061 *

100059 *

100058 *

MC33078 Dual LN J-Fet Operational Amplifier

ADMOD79 2ch Ad Delta Modulator

AD1865N Dual 18bit Dac

TS93C46 1Kbit Eeprom Memory

74HC374 Octal D-Type Flip-Flop

TL072 Dual J-Fet Operational Amplifier

7805 +5V 1A Voltage Regulator

7905 -5V 1A Voltage Regulator

080103 *

050494 *

050492 *

010722 *

010720 *

557026 *

105001 *

1N4148 100mA 75V Signal Diode

Resistor Array 10K X5 1/8w 5%

10Kx8 1/8w 5% Resistor Array

24.576MHz Quartz Resonator

12MHz Ceramic Resonator With Capacitors

AT89C55-12JC Programmed CPU

CONVY Dsp Convolver

Power Supply Board

768042 * Power Supply Board (PCB#317191)

141060 ** Con V M 12c Mini Mate Burndy

141013 ** Con V F 10c P=1.27 Mmatch Amp

140081 ** H 2c P=10 Terminal Block

140069 ** H 3c P=10mm Terminal Block

100060 ** 7815 +15V 1A Voltage Regulator

100059 ** 7805 +5V 1A Voltage Regulator

100049 ** 7915 -15v 1a Voltage Regulator

080606 ** GBU8D 8A Rectifier Diodes Bridge

080168 ** W02M 1.5A Rectifier Diodes Bridge

030882 ** 10000uF 50V Snap-In Electrolytic Capacitor

030881 ** 10000uF 50V Snap-In Electrolytic Capacitor

030866 ** 4700uF 100V Snap-In Electrolytic Capacitor

030858 ** 4700uF 25V 20% Vert Electrolytic Capacitor

030560 ** 4700uF 80V 20% Snap-In Electrolytic Capacitor

Signal Input Controls & MIDI Interface Board

768126 Signal Input, Controls & MIDI Interface Board (PCB#313019)

757942 * Photores Coupler

141202 *

141184 *

141064 *

Hor. Male XLR Socket (M21bc Nuova Asme)

Hor. Male XLR Socket (NC3FPRH Neutrik)

9 Contacts Hor. Male Connector r 8

141010 *

140212 *

100602 *

100061 *

100035 *

090194 *

090183 *

080734 *

080245 *

080103 *

074570 *

070125 *

140526 *

4 Contacts Vert Female Connector

Horizontal Female 5 Poles Din Socket

74HC04 Hex Inverter

TL072 Dual J-Fet Operational Amplifier

6N138 Optocoupler

BC560 TO92 LN Pnp Transistor

BC550 To92 Ln Npn Transistor

Led 2.5x5mm Rect Diff Red-Grn LED

7V5 1W 5% Zener Diode

1N4148 100mA 75V Signal Diode

5K lin. 31 clicks Potentiometer

1K 20% Vertical Linear Trimmer

Gray Button

Display & Setting Board

768030 * Display & Setting Board (PCB#319046)

141015 ** Con V F 14c P=1.27 Mmatch Amp

140526 ** Microswitch 100V 100ma 0.8mm

080717 ** HDN1105 7 Segments Display

Mains Filter Board

767987 * Mains Filter Board (Pcb#315016) (EU)

768002 * Mains Filter Board (Pcb#315016) (US)

230565 ** 2.5mH 250V 3A AC Line Filter

140010 ** 3 Contacts P=10 Vert Terminal Block

110113 ** Fuse Clip 5x20mm 6A max (EU)

110114 ** Fuse Clip 6.3x32mm 10A Max (US)

020493 ** 100n 250Vac MKP EMI Capacitor “Siemens”

010719 ** 2n2 250Vac 7A 20% AC Line “Y” Filter “Murata”

Power Amplifier Assembly

727524 Power Amplifier Assenbly

768043 * Power Amplifier Board (PCB#319044)

141059 ** 9 Contacts Vert. Male Connector

141058 ** 6 Contacts Vert. Male Connector

110316 ** Relay 24V / 1 Switch no 16A 250V

110307 ** Relay 24V / 2 Switch 5A 250V

100084 ** TL074 Quad J-Fet Operational Amplifier

100061 ** TL072 Dual J-Fet Operational Amplifier

090920 ** Mje803 TO126 Npn Darl Transistor

090917 ** MJE350 TO126 Pnp Transistor

090916 ** MJE340 TO126 Npn Transistor

090201 ** 2N5401 TO92 Pnp Transistor

090200 ** 2N5550 TO92 Npn Transistor

090924 ** MJL21194 NPN Transistor

090923 ** MJL21193 PNP Transistor

090920 ** MJE802P PNP Transistor

090919 ** MJE15031 PNP Transistor

090918 ** MJE15030 NPN Transistor

090917 ** MJE350 PNP Transistor

090916 ** MJE340 NPN Transistor

090863 ** TIP36C PNP Transistor

090862 ** TIP35C NPN Transistor

080282 ** 13V 1W 5% Zener Diode

080261 ** 10V1W 5% Zener Diode

080245 ** 7V5 1W 5% Zener Diode

080241 ** 5V6 1W 5% Zener Diode

080171 ** FE6B 6A 100V Fast Recovery Diode

080156 ** 1N4002 1A 100V Rectifier Diode

080103 ** 1N4148 100mA 75V Signal Diode

070106 ** 470E 20% Horizontal Linear Trimmer

070082 ** 220E 20% Horizontal Linear Trimmer

080819 * PTC 70 Pth59f04bg222ts

080607 *

080606 *

KBPC25 25A 200V Bridge Rectifier Diode

GBU8D 8A Rectifier Diodes Bridge

Notes:

Each spare part is single quantity unless otherwise specified

Asterisk prefix explanation:

Omitted = First level spare part.

One asterisk

Two asterisks

= Second level, part of previous listed first level part.

= Third level, part of previous listed second level part.

Three asterisk =.......................

Any request for not above mentioned part must encompass specific description including:

1) Model name,

2) Section,

3) Module code,

4) Reference name,

5) Quantity number.