Fostex EN3020 Owner's Service Manual

Model EN3020
ELECTRONICS CROSSOVER NETWORK |
Owner’s/Service Manual
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FOSTex
TABLE OF CONTENTS
SAFETY INSTRUCTIONS
WARNING
“ВЕЛО BEFORE OPERATING”
Read Instructions— АН the safety and operating instruc-
tions should be read before the appliance is operated.
Retain Instructions—The safety and operating instruc-
tions should be retained for future reference.
Heed Warnings—All warnings on the appliance and in
the operating instructions shouid be adhered to.
Follow instructions—All operating and use instructions
should be followed.
Water and Moisture —The appliance should not be used
near water—for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near а
swimming pool, etc.
Ventilation — The appliance should be situated so that its
location or position does not interfere with its proper ven-
tilation. For example, the appliance should not be situated
on a bed, sofa, rug, or similar surface that may block the
ventilation openings: or, placed in a built-in installation,
such as a bookcase or cabinet that may impede the flow
of air through the ventilation openings.
Heat—The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers} that produce heat.
. Power Sources—The appliance should be connected to
a power supply only of the type described in the operating
instructions or as marked on the appliance.
Power-Cord Protection — Power-supply cords should be
routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
particular attention to cords at plugs, convenience recep-
tacles, and the point where they exit from the appliance.
10.
12.
13.
14.
Cieaning—The appliance should be cleaned only as
recommended by the manufacturer.
. Nonuse Periods— The power cord of the appliance
should be unplugged from the outlet when left unused for
a lang period of time.
Object and Liquid Entry —Care should be taken so that
objects do not fall and liquids are not spilted into the
enclosure through openings.
Damage Requiring Service —The appliance should be
serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged;
or
B. Objects have fallen, or líquid has been spilled into the
appliance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or
exhibits a marked change in performance; or
E. The appliance has been dropped, or the enclosure
damaged.
Servicing —The user should not attempt to service the
appliance beyond that described in the operating in-
structions. Al other servicing should be referred to
qualified service personnel,
1. INTRODUCTION
The Model EN3020 is a professional electronic crossover network designed
to easily obtain a balanced and smooth playback sound field from a multi-way
speaker system.
The Model EN 3020 can be used in 2-way and 3-way modes of stereo and up
to 4-way mode of mono, and each frequency range is indicated by an LED, In
the stereo 2-way mode, a 3D output for a super woofer can be obtained.
Either 12dB/octave or 18dB/octave can be selected for the filter and
at each point of the crossover frequencies, six types can be selected to
match each speaker. The summing characteristic (voltage) at each crossover
point is designed to be flat when the phase is matched. The rear panel phase
selecting switch conveniently allows simple matching of phase and also serves
to compensate for sound time delay between speaker units.
The output level controls, provided for each frequency range, are 1dB
step attenuators which mute the signals at the OFF position. By the use of
these controls, uniform sound pressure characteristics can be set up ina
short time.
Both a balanced (floating) Cannon XLR type connector and an unbalanced
phone jack are provided for all inputs and outputs. Also, an optional protec-
tive cover (Type P3020), to prevent accidental disturbing of the front panel
settings, is available.
As mentioned above, the Model EN3020 possesses the functions and perfor-
mance which will satisfy any professional and will thus allow you to obtain
best sound from your speaker system.
2, THE CONTROLS AND THEIR FUNCTIONS
Front Panel Controls
1) LEVEL controls
Knobs to control the output gain of each filter. These are 1dB step
attenuators of maximum -19dB attenuation at CCW rotation and at extreme
CW rotation, gain will Бе "О" (MAX).
The sound will be muted at extreme CCW (©) OFF position and this muting
feature is convenient to check each speaker. Also, the present setting of
the controls can be re-created if a record is kept of each knob setting.
2) 12, 18dB/octave selecting switch
These rotary switches are for selecting the high pass and low pass
filter combination attenuation slopes at the crossover frequencies to
either l2dB/octave or 18dB/octave. These are switched by using a flat
blade screwdriver.
3) MODE indicators
These LED's light up to indicate which filters and level controls are
in use in accordance to settings of the rear panel mode selectors. The
lighted LED's also serve as power indicators. One exception is that when
it is set in the 2-way (3D) mode, LED for the super woofer will not be
lit even though the 3D woofer terminal is in use.
4) Crossover frequency selecting switch
These switches are for selecting one crossover frequency, from among six
different frequencies, at each crossover point for 2-way, 3-way or 4-way
modes set by the rear panel mode switch. The selector switches to be used
at each mode are indicated by the 7 |f marks on the upper space of the
front panel.
CAUTION: Especially in regards to mid and high frequency speakers, the cross-
over frequency selecting range will be limited by their power input
capacity. If these should be switched during operation, care must be
taken such as by turning down the amplifier output control. Otherwise,
you may damage the speakers.
5) POWER switch
Depressing this switch applies power to the EN3020 and the LED's cor-
responding to the presently established mode will be lit.
Rear Panel Controls
1) MODE switch
One mode from among the three listed below are selected by this switch.
Use a flat blade screwdriver to set this switch.
(a) STEREO 2-WAY (3D)
(b) STEREO 3-WAY
ic) MONO 4-WAY
(a) STEREO 2-wAY mode
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Front panel setting (2 CH) [Shaded controls]
On
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Figure (1)
(a') STEREO 2-WAY, 3D mode
AS a 3D output for a super woofer is constantly output from the
connector indicated SUPER LOW when in the STEREO 2-WAY (3D) mode, use
the output from either channel 1 or channel 2. However, it must be noted
that the front panel SUPER LOW LED will not be lit.
Ц EN 3020
Front panel setting [Shaded controls] f 1 AMP
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Figure (2)
(b) STEREO 3-WAY mode
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Front panel setting [Shaded controls] |
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(c} MONO 4-WAY mode
+ 0 o O ll O * O o 0 ll m
0:00:.0:-0:-0-60 | =
Front panel setting [Shaded controls]
Figure (4)
2},3) INPUT
Two types of input connectors - the Cannon XLR Type (2) and the phone
type (3) - are provided for each input point. Only one of the two
types should be used.
The Cannon XLR Type is a 3 pin, balanced input and pin designations are
as follows:
el $ | |
er
) ™ HOT COLD
EARTH _
(SHIELD) +} [1
female .
Figure (5)
If the signal is to be applied to the phone jack, the plug should be a
Standard 2 pin type and the output should be unbalanced.
4), 5) OUTPUT
The Cannon XLR Type (4) and the phone type (5) are also provided at these
output points. Be sure to use only one of the two types.
The Cannon XLR Type is a 3 pin balanced output and pin designations are
as shown below.
HOT COLD
o
HOT
S (+)
_ COLD
® EARTH (—}
(SHIELD)
male
Figure (6) HOT COLD EARTH
For the phone type jacks, it will be an unbalanced output when a 2P
standard phone plug is used and a balanced output when a 3P plug is used.
6) PHASE switch
This is the switch for reversing polarity of the signals at the output
jacks. When the phase is 0°, the wiring polarity will be as shown in the
previous pin designation schematic but when this PHASE switch is set to
180°, the polarity at the HOT (+) and COLD (-) pins of the connector wiil
be inter-changed. As the EN3020 is the transformer output type, the output
signal polarity will also be reversed.
As the most suitable phase depends on whether the filter is set to
124B/octave or 18dB/octave, or the relative positions of the speakers,
either 0° or 180° must be selected for a smooth acoustic response.
7) LOW CUT switch
This 1s the ON/OFF switch for the 30Hz cutoff frequency 12dB/octave type
high pass filter. This is switched ON to cut off ultra low region components
below 30Hz. This is utilized to protect the speaker from extraordinarily
large amplitudes or to cut off low frequency noises.
8) AC power cord
3. CONNECTIONS
The method of connecting the Model EN3020 into the amplifier system will
be explained by schematics using the Cannon XLR Type connector. Connections
using the phone jack will be omitted as the method is the same.
1) For stereo 2-way and 2-way-3D
Two 2-channel power amplifiers (or, four mono amplifiers) are connected
as shown in the schematic for the LOW and HIGH regions. If this is to be
expanded to a 3D system to drive a super woofer, a power amplifier for the
additional channel must be provided and the signal obtained from one of the
two SUPER LOW output connector (These connectors are wired in parallel).
E
e
(ere) 2 WAY
(30)
MIXER
OR
PRE AMP
TWEETER
WOOFEA
Olen.
Figure (7)
2) For stereo 3-way
Three 2-channel power amplifiers (or, six mono amplifiers) are connected
as shown in the schematic for the LOW, MID and HICH regions.
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STEREO STEREO STEREO MIXER
AMP AMP
TWEETER № |
MID RANGE SPEAKER [LJ 1
WOOFER
3) For monoaural 4-way
MID RANGE SPEAKER
Mad
WOOFER
Mo
Figure (8)
In the mono 4-way mode, four channels of power amplifiers are required
with respect to one Model EN3020. As shown in the schematic, each amplifier
is connected for SUPER LOW, MID LOW, MID HIGH and HIGH.
In making these connections, be sure to input the signal into Channel
i as Channel 2 will be disconnected when in the monoaural mode. At playback
of 4-way stereo, one more system consisting of one Model EN3020 and four
channels of power amplifiers will be required.
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MIO-LOW RANGE
SFEAKER
WODFER
It 15 rare for hum and noise occurring in the Model EN3020 as it uses
MIXER
POWER
TWEETER о АМР АМР AMP AMP PRE AMP
MID-HIGH RANGE
208 OT um |
Figure (9)
GROUNDING
balanced lines in the inputs and outputs. However, if hum and noise is created
by inter-connected equipments or through complex wiring, try re-inserting the
AC plug in reverse polarity or use a telescoping shield shown below. In this
cable, the #1 pin of the connector at one end is not wired but care must be
taken to see that the shield is not grounded through the connector shell.
sourse UO Nr Af, EN3020 (IN)
EN3020 (ouT) LE __— —— SÓ amplifiers
Figure (10)
4. OPERATION
1) The rear panel mode selector switch is set by a flat blade screwdriver
to match the speaker and amplifier combination to be used.
2) Determine whether the LOW CUT filter will be used or not and set the
switches accordingly.
3) Make all proper connections between the inputs and outputs.
4) Set all crossover frequencies at the front panel. In doing so, refer to
the previous precautions and the next section, "Techniques in operation."
5} In the same way, set the filter attenuation curve to 12dB/octave or 18dB/
octave by a flat blade screwdriver.
6) Set all LEVEL controls to-oand switch ON power.
7) Apply a signal to the Model EN3020 from a preamp or mixer. (The recommended
input level is +4dB.}
8) Rotate each LEVEL control, indicated by the LED, CW to raise gain, then
rotating 1t CCW to check that each speaker is correctly connected and operat-
ing properly.
9) For the next step, levels are set for each channel. As the recommended
output level is the LEVEL 0 position, set the levels by reference the lowest
output sound pressure speaker (this will ordinarily be the woofer) as дав
and reduce the LEVEL knobs for the other speakers.
10) In the final setting of the phase switch, these should be set after the
cables are inter-connected between the inputs and outputs, as described in
above Item 3), if these are known beforehand. If these are to be set after
Switch ON of power, for example, with reference to LOW at 0%, determine the
phase of the MID and HIGH. In such a case, the LEVEL controls should be
trimmed after determining the phase.
NOTE: To prevent confusion, it is recommended that all speaker lines be
wired in "positive" polarity.
10
5. TECHNIQUES IN OPERATION
1) Determining the crossover frequencies
Speakers have rated frequency range and are ordinarily indicated with a
recommended crossover frequency. In the recommended frequency range of a
speaker, sound pressure, distortion frequency characteristic, directivity,
electrical input withstanding level, etc. are guaranteed and therefore, it
should be operated within this frequency range. High frequency speakers, in
particular, which are susceptible to excess input levels should be operated
within this range and the crossever determined accordingly.
In the following are explanations and a list on a generalized speaker
system crossover frequencies for which the Model EN3020 is designed.
MODE Recommended crossover frequency and combinations for the EN3020
(A) Woofer G wide range (B} Wide range woofer (© super
tweeter tweeter
2-way
Over 800Hz Over 5KHz
Super woofer (+) woofer (D wide range tweeter
/
2-way 3D /
63 % 250Hz Over 800Hz
_ (В) woofer (+) mid & super
(A) Woofer & mid G tweeter tweeter
ee N A A
SOOHZ Over 2.5KHz BOOHZ or 1.2KHz Over 5KHz
Super woofer (+) mid low 4) mid high & super tweeter
= хх xX
63 № 250Hz 600Hz "v 2KHZ Over 5KHz
In addition to this, in making a 3-way system in the bi-amp method, it
will be simple to make this system by using an LC network in the 2-way mode.
Woofer mid Super tweeter
A Te
PA
IN
4
i 4
S00Hz or 1.2KHz Over 5KHz
Figure (11)
EN3O20
2) Determining the 12dB/oct., 18dB/oct. attenuation curve
In the Model EN3020, two most practical type filters, the 12dB/octave
or 18dB/octave type, can be chosen. The theoretical amplitude characteristic
and phase characteristic of these filters near the crossover point are as
shown in the diagram below.
l2dB/oct, filter (0=0.5, Z=1}
Crossover characteristic
(dB) {deg}
Low pass High pass
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pl ai
High pass (phase)
10 180?
"TH
AIT»
dl
Low pass(phase) И |
20 o] к % gr
7 Pet
F
| 7 — \ 180°
y .
0.05 0.1 0.2 0.5 1 2 5 10
íxfcj (Hz)
lfBdBoct. filter (Q=-0.7, £¿=0.7)
Crossover characteristic
(15) (deq}
Lo ass High
6 Ww р 2 195 pass 3609
PLAN
10 = 1804
ke
a Low pass
meet | | [(phase }
20 ga
An
30 SÁ High passa 180?
en a (phase |
_
360
0.05 0.1 0,2 0.5 1 2 4 10
{xtic) (Hz)
Curves of the high pass
and low nass filters
Composite characteristic
{dB} (deg}
o Reverse phase connection
. ao
Fa o
м
Positive phase connection
10 HH tH 180°
Ps i Reverse phase
connection 7
20 ! ll iphase) |.
a HE PTT 1 0
pl .] | |1 Positive phase
— connection 7
he (phase)
30 = qu £ 139°
0.05 0.1 0,2 0.5 1 2 5 10
(xfc) [He]
Composite characteristic
(ав) ideg}
Reverse phase and positive phase connections
О 360°
10 мт 190?
Eee,
TL) Reverse phase
connection —
a (phase)
20 ==- > 0°
a, ощ
ha]
Pel
a
8 mM Positive phase 180
> connection,
Fin,
Te | | | (phase) 360°
0.05 0.1 0,2 0.5 1 2 5 10
(ufc) {Hz}
Combined characteristic
Figure (12)
11
12
Which of the 12dB/oct. type or 18dB/oct. type should be used could be
determined by acoustical characteristic measurement or through listening
tests. Especially, if the speaker is to be used at the limit of the speakers'
rated frequency range, it may be of advantage to use the 18dB/octave type
for the purpose of reducing distortion near cutoff and improving tolerance
against high input levels.
3) Phase selecting
Referring to the above combined characteristic drawing on the theoretical
amplitude (voltage) of the filter, it can be seen that to obtain a flat
amplitude characteristic, the connection should be in reverse phase for the
124B/octave type and reverse (or forward) phase for the 18db/octave type.
Reviewing this in respect to sound pressure combination -
OH DL
YO
%
(a) (b) (c}
Figure (13)
When the speakers are arranged such that the starting position (in the
vicinity of the voice coil) of the sound are in the same plane as shown in
Fig. (a), the same relationship exists between the three speakers in regards
to phase matching. Therefore, when the Model EN3020 is used in the 3-way
mode, the basic setting of the PHASE switch will be as follows:
Basic setting
for Fig. (a) LOW MID HIGH
12dB/oct. pe 180° Oo?
18dB/oct. 0° 180° fora?) 0° (or180°)
Figure (14)
In the setup shown in Figs. (b) and (c), however, this relationship is
disturbed. In Fig. (b), assuming the distance Dr, between the woofer and
mid unit, is half wavelength of the sound at the crossover frequency, then
the electrical phase will change by 180° and in the 12dB/octave filter,
the PHASE switch must be changed from 180° to 0° with respect to the mid range.
Should distance Dy, between the mid unit and tweeter, be the same half wave-
length, then the previous list will be -
LOW MID HIGH
12dB/oct. O° 0° ge
18dB/oct. ge O° (or 180°) 180° {or0°)}
Figure (15)
In general, the relationship between half wavelength of sound and cross-
over frequency presented on a graph will be as follows:
1000
N
ls,
500
400 «<.
300
200
100 А,
Half 50 N
wavelength (cm) E
1
20 30 4050 100150200300 500 1K 1.5K 2K 3K 4K 5K
Crossover £. (Hz)
Figure (16)
13
14
In
reality, however, distance between speakers are not exactly half
wavelength apart and for this reason, the PHASE switch is set at the most
suitable position by experimentation.
In
the situation shown in Fig. (c) where distance between the mid unit
and tweeter is largely offset from the 5KHz crossover frequency, the phase
difference cannot be corrected by the PHASE switch. In such a case, it 15
best to use the sharp sloped 18dB/octave filter to avoid the affect due to
phase
AS
sound
phase
Model
difference.
can be seen by the above explanations, the combined characteristic of
pressure in a speaker system is determined by the filter type, output
and relative positions between the speaker units at utilizing the
EN3020 in the system. Furthermore, in order to obtain an accurate
acoustic response, measurements should be taken with a simpiified sound
pressure measuring equipment and a real time spectrum analyzer using noise
as the source, combined with listening tests, to obtain best sound,
6, SPECIFICATIONS
Inputs : 2 channels
Input impedance : 40K, balanced {XLR type connector)
20K, unbalanced {phone jack)
Standard input level : +4dB (1.23V)
Maximum input level : +24dB (12. 3¥V}
Filter cutoff : -12dB/octave type (0=0.5)
-18dB/octave type {0=0,7, Butterworth type)
Crossover frequencies : {LOW-MID, SUPER LOW-MID)
63, 125, 250, 320, 600; 800 Hz
(MID LOW-MID HIGH)
600, 800, 1K, 1.2K, 1.6K, 2K Hz
(MID-HIGH, MID HIGH-HIGH}
800, 1.2K, 2.5K, 5K, 7K, 10K Hz
Outputs : 6 channels, transformer, balanced line
Nominal load impedance : 6008 or higher
Maximum output level : +24dB (12.3%)
Output level control : 21 position, 1dB step: O % -194B, -«
Gain : OdB
Frequency response : LOW output = +1dB {20Hz)
HIGH output - +t1dB (50KHz)
Distortion : Less than 0.02% (1 KHz, +24dB)
Residual noise : Less than -85dB
Phase ; Switchable to 0° and 180°
Lowcut filter : 30Hz, 124B/octave
Connectors : Inputs - Cannon XLR-3-31 (equiv.), phone jack
outputs -= Cannon XLR-3-32 ( " }, " "
Power requirements : 120V, 60Hz, 15W (USA, CND)
220V, 50Hz, 15W (EUR)
240V, 50Hz, 15W (UK, AUS)
100V, 50/60Hz, 10W (JPN)
Physical dimensions : 430 x 88 x 210 mm (16.9" x 3.46" x 8.27")
{W x H x D)
Weight (NET) : 4.9Kg. (10.78 lbs.)
" (CRATED) ; 5.5Kg. (12.1 18.)
Inclusions : 19" rack mount adaptor, mounting screws
Optional accessory : Protective cover (Type P3020)
NOTE: OdB = 0.775У; We reserve the right to change specifications and physical
appearance without notice.
16
Service Manual
TABLE OF CONTENTS
CAUTION
A Parts marked with this sign are safety critical components. They must
always be replaced with identical components. Refer to the Fostex Parts
List and ensure exact replacement.
NOTES
* Adjustment procedures are given in this manual which also includes a
Parts List and schematic diagrams to assist the service technician in
Maintaining the Medel EN3020
Please feel free to contact the nearest Fostex Dealer and Distributor,
or write directly to a Fostex office, the addresses of which are printed
on the back cover of this manual.
1, METHOD OF MEASUREMENT
EN3020 OSCILLO-
VIVM SCOPE
DISTORTION
METER
Fig. 1 Circuit for measurement
1. Filter response measurement
Measuring equipments are connected to the EN3020 as shown in Fig. 1.
Figures 2 and 3 are measurement data for crossover frequencies of 600Hz
and “KHz and Fig. 2 is the response for the 12dB/oct. filter and Fig. 3
for the 18dB/oct. filter.
For l2dB/oct, type For 18dBaf/cct. type
{-dB}
BE
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no IN
NL | à f
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20
50 100 ¿00 sb IE 2K SE ток 20K 20 50 106 200 Soc LK ¿E DK LOK 205
Fig. 2 Fig. 3
The crossover frequencles are set at the -6dB attenuation point for
the 12dB/oct. filter and at the -3dB attenuation point for the 18dB/oct. filter.
In regards to the crossover frequencies, there should be no problem if
the attenuation point deviation is within +1.5dB.
(a) Low pass filter response
When taking measurements for 600Hz crossover frequency, for example,
a 100Hz signal at ОЯВ (0.775V} is applied to the input terminal and assum-
ing the output voltage for this input level to be 0dB, measurements are
taken by changing the frequencies over the required range.
17
18
(©) Band pass filter response
The frequency is changed in the same way as above and measurements taken
at the band pass filter output terminal.
(c) High pass filter response
The frequency is changed in the same way over the required range and
measurements taken at the high pass filter output terminal.
The above procedures (a) % (c) are also taken to measure each other
crossover frequency responses. It 1S important at taking the above measure-
ments to be sure the reference level is set at a point on the frequency
range where the level will not be affected by the crossover frequency.
2. Input-output response
Upon completing measurements in above 1., a 100Hz signal for the low
pass filter, 1 KHz for the band pass filter, and 10KHz for the high pass
filter, respectively, are applied at +4dB (1.23V) to each filter input
terminal and confirm that the output voltage of each filter is +4dB, +1dB.
3. Distortion
A +4dB (1.23%) signal is applied to the input terminal and the output
voltage distortion 1S measured by a Distortion Meter. The resulting values
should be:
LOW filter LOOHZ Less than 0.063
MID filter l KHz " " 0.02%
HIGH filter 10KHz " " 0.02%
4, Residual noise
The LEVEL control knob is set at " © " without any signal applied to the
input and the level at each OUTPUT terminal measured in "dB."
The residual noise figure thus measured should be less than -80dB (using
a band pass filter for 20 “№ 20,000Hz).
2. EXPLODED VIEW, PCB ASSEMBLIES AND PARTS LIST
ASSEMBLING HARDWARE CODING LIST
All screws conferm to 150 standards, and have crossrecessed heads, unless otherwise noted.
150 screws have the head inscribed with a point as in the figure to the right.
FOR EXAMPLE.
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Inner dia. for washers and nuts
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z = Seeger Ring me]
LLE -- - _—
т .
Pan Washer Head Я heir
GS | PTTWH ju Ä =
Les Tapping Screw р SP Spring Pan
ы . Ll
FE TTT Stove Head Tapoanyg crew Gem SH Snap Ring x
óL
< rr -. . (я
Flat Coymienunk Head firma
ETT Tapping Screw In Zine plating
- —
Рам Head Sree . .
os PS wih Spring Washer $ утт Gin Colored cing plating
uy EL pm
nt Washer arıl Spring Washer п ark ame ранив
L
A
5 и Flat Waster Car) = Ni Nickel plating
Е alo.
2 LW Spring Vasher {= BNi Black пака! plating
— en —--
m LWi internal Tesıh Lock Washer E Cr Chrome plating
3 _
= LWE External Teeth Lock Washer Ar BCr Black chrome placing
20
OVERALL EXPLODED VIEW
Ref. No.
Parts No.
Nomencla
ture
li
с ww CD se om i fw =
a
oll
Pe me =>. =>. eS 4 =
24
28
29
30
31
32
33
34
35
36
8220 0630 00
8220 0670 02
8273 1000 00
8273 1020 00
8273 1010 00
8216 0320 00
8273 1040 00
8220 1620 00
8273 0990 00
3D Tr
8260 1251 90
8207 0003 02
8260 0700 06
8226 0070 02
8220 1640 00
8226 0130 02
8220 1660 00
8745 0600 00
8245 0610 00
8273 1070 00
8245 0300 00
8245 0620 00
8273 1030 00
8207 0006 00
8273 1080 00
A 8276 0030 00
& 8276 0040 00
À 8276 0050 00
№ 8276 0060 00
№ 8276 0070 00
4s 8276 0080 00
8207 0002 08
8207 0002 14
8220 1630 00
A 82420 00,
As 8242 de
À 8242 09208
4 8242 0639 00
№ 8256 0080 00
№, 8256 0090 00
A 8256 0100 00
A 8256 0110 03
8216 0720 00
№ 8253 0140 07
№ 8253 0370 00
8251 1470 01
A 8239 0005 20
A, 8239 0003 20
A, 8239 0004 20
8220 1650 00
8226 0191 00
Cover, 3030
Adapter, rac
POB ass'y, f
Cover, switc
PCB ass'y, L
Bracket, PCB
PCB, mother
Pot, control
Chassis, ass
Plasti-foot
Knob ass'y,
Knob, 17, bl
Panel, dress
Button, push
Plate, cover
Connector, Cannon, HAIGPR-35
к mount, 88 8
ilter, low
" high
" mid
h
ED B
board
‚ detent, 10K2, A
'у, EN3020
13, bik
4
‚ EN3020
» B, blk
Ñ HAT6R-3D
PCB ass'y, low cut
Jack, phone,
06, mono, $-G7625
" stereo, 5-67825
PCB ass'y, LED A
Plasti-rivet
‚ #794
PCB ass'y, phase
Cord, power,
DM
USA
H¥DRO
EUR
UK
AUS
Bushing, SR-4N-4
" SR-5N-4
Panel, rear,
Transformer,
Sparkiller,
EN 3020
power, 120Y, EN3020
" 220/240¥, EN3020
" UNITY.
" 100%
OM, NSKG-115
UL, NSK-135
CSA, NSK-132
SEMKO, FME-265
Sheet, fiber
Switch, push, power, SDLIP
" SDGA3P, L
PCB, power supply
Fuse, Dentori, 24
" UL/CSA, 2A
" SEMKO,
Heat sink
Escutcheon,
РА
В
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-
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Te ar à ENT ¿EL VAR] ARE Mens
a iin TON. b Рон ion |
LA ja! 1 |. i + Я
+ + в @ + ыы = A | E a =.
нина а E
à 1
ot by ig AC us
A
Peon
у = é h
(q... ‘
Ро oe, 1
+ и ei | A
Е all be №
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SSSR A ed = sx
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== zz...
MOTHER PCB ASSEMBLY, Ass'y №. 8273 0990 00
Ref. No. Parts No. Nomenc lature
8251 144000 PCB, mother
IC's
110] ~ 103 8236025700 Analog, TLO72CP
1301 "a 303 и и il
TRANSISTORS
0302, 303 8234001003 ?SA6B4R
0306, 307 " "
0310, 311 " "
0301 8234 0009 03 25013848
Q304, 305 " "
0308, 309 " Ñ
q312 Eh al
DIGDES
0301 v 312 8234 0025 00 151588
RESISTORS
All resistors IN, +5% unless otherwise noted.
R101, 102
R103, 104
R105
R106
R107
R108, 109
R110, 11}
R112
R113
Ri14
8115
R116
R117
R118
R119
R120
2301
R302
R303
R304
R305
R306
R307
R308, 309
R310
R311
R312
R313
R314
R315
R316
R317, 318
R319
8230 0062 23
8230 0066 82
8230 0062 23
8230 0066 82
8230 0062 23
8230 0066 82
8230 0062 23
8230 0066 82
8230 0061 05
8230 0065 63
8230 0061 14
8230 0061 04
8230 0065 63
8230 0061 14
8230 0061 04
8230 0067 52
8230 0064 72
8230 0061 03
8230 0061 50
8230 0061 02
8230 0061 50
8230 0061 05
8230 0064 72
8230 0061 50
3230 0067 52
3230 0061 50
8230 0061 03
8230 0064 72
8230 0061 02
3230 0061 05
8230 0065 11
8230 0065 62
22Kn
6. ВКО
eek?
6.87
Flat mounting,
Mm [Ш
(Deleted)
Flat mounting, 22Kû
6.0K2
22K2
6. 8KQ
" " 1
SK
119K2
TOOKR
56K
110K2
1G0KR
Flat mounting, 7.560
4.7K2
1 OKS:
" " 152
Ref. №. Parts No. Nomenc lature
R320 3230 0064 72 " " 4, 7KS
R321 8230 0061 G3 " " 10K2
R322 8230 0061 50 " " 157
R323 8230 0061 02 " " IK
R324 8230 0061 50 " " 158
R325 8230 0061 05 " Ñ IM
R326, 32? 8230 0064 72 " " 4. 7KR
R328 3230 0061 50 " " 158
R329 8230 0067 52 и " 7. 5KR
R330 8230 0061 50 " " 156
R331 8230 0061 63 " " 10K
R332 8230 0064 72 " " 4,7 Ki
R333 8230 0061 02 " " TK
R334 8230 0061 05 " " IM}
R335 8230 0068 20 \ " 825
R336 6230 0065 11 . " " 510%
R337 8230 0067 52 " " 7, SK
R338 8230 0064 72 " " 4.7K2
R339 8230006103 Flat mounting, 10
R340 8230 0061 50 " " 15%
R341 8230 0061 02 " " 1КЯ
R342 8230 0061 50 " " 158
R343 8230 0061 05 " " 1Mi
R344, 345 8230 0064 72 " " 4.7 KR
R346 8230 0061 50 " " 152
R347 8230 0065 62 " " 5. OKS
R348 8230 0061 50 " " 158
R349 8230 0061 03 " " 1VOKS
R350 8230 0064 72 " " 4.7 KS
R351 8230 0061 02 " " 1K2
R352 8230 0061 05 " " 1M
R353 8230 0065 11 " " 5108
R354 8230 0068 20 " " Be
CAPACITORS
CIGT ~ 193 8232034471 Ceramic, 50%, 470pF, 10%, YB
C104 8232 057105 Electrolytic, 50V, luF, 20%, BPSM
C105 107 8232034471 Ceramic, 50%, 470pF, 10%, YB
C108 8232 057105 Electrolytic, 50Y, luF, 20%, BPSM
C109, 110 8232 026683 Mylar, SOV, 0.068uF, 5%, AMX
2111 8232 054106 Electrolytic, 16¥, TOuF, 20%, BPSM
2112, 113 8232 026683 Mylar, 50Y, 0.068uF, 5%, AMX
2114, 115 8232074000 Ceramic, SOV, O.TuF, 20%, YSU
C116 8232 054106 Electrolytic, 16¥, 10uF, 20%, BPSM
C302 8232 074000 Ceramic, 50Y, O.luF, 20%, YSU
C303 (Deleted)
C304 8232 0740 00 Ceramic, SOV, 0.luF, 20%, ¥5U
C305, 306 8232 026183 Mylar, 50Y, 0.018uF, 5%, AMX
C307 (Deleted)
C308 8232 074000 Ceramic, 50Y, O.luF, 20%, YSU
C309 (Deleted)
26
Ref. No, Parts No. Nomenclature
C319 8232 0740 00 Ceramic, 50V, 0.1uF, 20%, Y5U
6311 8232 026683 Mylar, SOV, O.068uF, 5%, AMX
2312 8232 026183 Mylar, 50Y, 0.018uF, 5%, AM
C313 (Deleted)
C314 8232 074000 Ceramic, 50V, O.luF, 20%, ¥5U
C315 (Deleted)
C316 8232074000 Ceramic, 50Y, 0.luF, 20%, Yu
C317 8232 0261 83 Mylar, 50Y, 0.018uF, 5%, AMX
C318 8232 0266 $3 " " 0.068uF, " "
CARBON POTS
у ¥R31~% 35 8240051000 Gain control, detent type, 10KR, A
MISCELLANEOUS
5102 8253044000 Switch, rotary, 51035F04
1301, 302 8242 064000 Transformer, output, LOW
T303 8242 0650 00 " " » HIGH
T304, 305 8242 0640 00 " M, LOW
T306 8242 0650 00 " " ‚ HIGH
8216 124102 Cable ass'y, 3P, В, 150mm
8276 2360 20 " " АР, 200mm
410 8245 053043 Jack, 8263, 3, straight, bIk
4102 (Deleted)
3103, 104 8245 001004 Jack, 5045-04A
J105 8245 0010 05 " , 5045-054
4106 109 8245 0010 08 " , 5045-08A
4301 8245 0010 05 " , 5045-054
J302, 303 8245 0240 02 " , 5045-02F
J304 8245 0010 05 ", 5045-054
FILTER PCB ASSEMBLY
a 3
a
м
208
poa oo Er + ла ры, r
LOW PASS FILTER PCB ASSEMBLY, Ass'y No. 8273 1000 00
Ref. No. Parts No. Nomenclature Ref. No. Parts No. Nomenclature
8251145000 PCB, Filter R223 8230 0043 94 Vertical mounting, 390Kn
Ic R224 (Deleted)
R225 8230 004184 Vertical mounting, 180K2
201 8236 0257 ,
6025700 Analog, TLO?2CP 2006 (Deleted)
CARBON RESISTORS R227 8230 0047 53 Vertical ting,
All resistors 4W, +5% unless otherwise noted, R298 8230 0045 13 es Le ms a
R201, 202 8230004124 Vertical mounting, 120K2 1229 3230 0042 43 5 i AKO
2203 8230 0043 03 0 u
2200 (Deteted) SOK R230 8230004303 Vertical mounting, 30K
2008 8230004153 N . baxo R231, 232 8230 0045 62 n " 5. 6KQ
R206 8230 0041 04 и ne u OOK Ras 9230 0043 03 | ae
R234 8230 0042 23 " “ 22K
R207 8230 0041 23 " u 12K2
2208 (Deleted) R235 (Deleted)
ete R236 8230 004153 Vertical mounting, 15Ka
#209 8230004153 Vertical mounting, 150
R237 8230 0043 33 u " 330
R210 8230 0041 13 " " ka
R238 8230 0044 32 » " 4. 3K0
R271 8230 0044 72 и “ 4.7K
19 2220 0047 29 | > 20 R239 8230 0045 62 A " 5. 6KN
213 8230 0042 23 oko #240 8230 0046 82 n ‘ 6.8K2
1A (Deleted) R241 8230 0041 52 " " 1.5K0
Е 8930 0087 53 y .. . bi so R242 8230 0042 02 Vertical mounting, 2K£
ore 8230 0043 33 erence un ngs sake R243 8230 0042 71 a “ 2700
R244 8230 0041 62 A u 1.6KQ
R217 8230 0044 32 " 0 4.3K2 |
R245 8230 0061 02 Flat mounting, ----- тк
R218 B23) 0043 02 | | 3Ko R246 8230 0061 04 = * 100KA
R219 8230 0041 52 " " 1.5KQ 2247 8230 0063 63 u р 350
REZO 8230 0042 02 | | aKa R248 8230 0065 13 » " 51K2
R221 8230 0042 71 u " 2700 8249 (Deleted)
R222 8230 006162 Flat mounting, 1.6K
27
28
Parts No.
Ref. No, Parts No. Nomenclature Ref. No. Nomenc lature
R250 8230 0067 53 Flat mounting, ---- 75K2 C241 8232 080513 Mylar, 50V, 0.051uF, 5%, AMZ
R25] (Deleted) C242 8232 0261 02 " " G.00uF, “ "
R252 8230 0067 53 Flat mounting, ---- 75 C243 8232 0262 03 " "0.0, "o ”
R253 8230 0063 63 " " 36K2 C244 8232 0262 42 ' " 0.002447, 5%, AMX
R254 8230 0065 13 " " БК C245 8232 0261 23 " "0.01245, "o"
R255 (Deleted) C246 8232 0263 32 " “ 0,0033uF, " AMZ
R256 8230 006753 Flat mounting, ---- 7БКЯ C247 8232 032301 Ceramic, 50V, 300pF, " NPO
R257 8230 0061 02 " " IKR c248 8232 054106 Electrolytic, 16%, 10uF, 20%, BP, $
R258 8230033106 Metal film, ------- 100 C249, 250 9232074000 Ceramic, 50%, O.luF, 20%, YSU
R259 8230 006104 Flat mounting, --- 100K2 MISCELLANEOUS
CAPACITORS $201 8253 046000 Switch, rotary, 50825
C201 8232 0805 13 Mylar, 50Y, 0.05luF, 5%, AMZ $202 8253 0450 00 " "50865
6202 $232 0805 63 " “ O.056uF, " " 8276 122101 Cable ass'y, 8P, A, 100mm
C203, 204 8232 0263 03 + "0.035, " ” 8276159016 Cable, flat, red/wht, 160mm
6205 8232 0805 13 " " O.051uF, * " 8220 162000 Bracket, PCB
C206 8232 080563 Mylar, 50V, 0.056uF, 5%, AMZ |
C207 8232 0263 03 " " 0.03uF, " ™
C208 8232 054106 Electrolytic, 16Y, 10uF, 20%, BP, SM
C209 8232 026362 Mylar, 50V, 0.0036uF, 5%, AMX
6210 8232 0264 33 " "0.04347, " "
C211 (Deleted)
(212 8232 0262 03 Mylar, 50V, 0.02uF, 5%, AMX
6213 8232 0268 22 " " O.0082uF, 5%, AMX
C214 (Deleted}
C215 8232 0265 62 Mylar. 50V, 0.0056uF, 5%, AMX
C216 (Deleted)
C217 8232 026132 Mylar, 50Y, 0.0013uF, 5%, AMX
C218 3232 032560 Ceramic, 50%, 56pF, 5%, NPO
C219 8232026912 Mylar, 50V, O.0091UF, 5%, AMX
(220 8232 0801 14 р " 0.11uF, 5%, АМ MID FILTER PCB ASSEMBLY, Ass'y No. 8273 1010 00
C22] 8232 0805 13 " " 9.051uF, 5%, AMZ
Ref. No. Parts No. Nomenclature
(222 8232 0261 02 " " 0.001luF, " AMX
C223 8232 0262 03 " " Q.o2uF, (и 8251145000 PCB, Filter
C224 8232 0262 42 " " O,0024uF, " * LC
(225 8232 061 ES eu о U201 8236 0257 00 Analog, TLO72CP
C226 8232 0263 32 " "9,0033uF, " "
C227 8232 032301 Ceramic, 50Y, 300pF, 5%, NPO CARBON RESISTORS
All resistors iW, +5% unless otherwise noted.
C228 8232 0329 10 " "Фр, " "
0293 8232 0256 82 Mylar, 50Y, 0.0068uF, 5%, AMX R201, 202 8230 004313 Vertical mounting, ЭК
C230 {Deleted} R703 8230 0043 03 " " 30K
6231 8232 026332 Mylar, 50V, 0.0033uF, 5%, AMY R204 (Deleted)
C232 (Deleted) R205 8230 004203 Vertical mounting, 20K
C233 8232 0261 62 Mylar, 50V, 0.0016uF, 5%, AMX R206 (Deleted)
C234 8232 0322 41 Ceramic, 50V, 240pF, 5%, NPO R207 8230 0042 23 Vertical mounting, ¢2k
C235 8232 026102 Mylar, 50V, 0.001uF, " AMX R208 8230 0043 63 ° ° 36K
C236 8232 031621 Ceramic, 100V, 620pF, 5%, APS R209 8230 0045 62 и y 3» 6K
C237 8232 0321 50 Ñ 50Y, 15pF, 5%, NPO R210 (Deleted)
C238 8232 0504 31 “ " 430pF, 5%, SL 8211 8230 0041 02 Vertical mounting, 1КЯ
C239 8232 0269 12 Mylar, 50%, 0.009luF, 5%, AMX R212 8230 0041 83 " " 18k2
C240 8232 0801 14 " " О.Р, 5%, AMZ R213 8230 0042 23 " " 220
Ref. No. Parts No. Nomenclature
R214 8230 0048 23 " " BARR
R215 8230 0041 13 " " к
R216 (Deleted)
R217 8230 004752 Vertical mounting, 7.5KR
R218 8230 0045 12 " " 5.1K2
R219 8230 0041 82 ы " 1. 8K
R220 (Deleted)
R22] 8230 004229 Vertical mounting, 2.22
R22? 8230 0067 52 Flat mounting, 7. SKS
R223, 224 8230 0046 24 Vertical mounting, 620Ki
R225 8230 0042 04 " " Z00K2
R226 (Deleted)
R22? 8230 0041 34 Vertical mounting, 130K2
R228 8230 0049 13 " " O1Ki
R229 8230 0043 33 . " 33KR
R230 (Deleted)
R231 8230 004229 Vertical mounting 2.20
R232 {Deleted}
R233 8230 004134 Vertical mounting, 130Kf
R234 8230 0042 23 " " eek
R235 8230 0048 23 " " B2KR
R236 8230 0041 13 " " 11K
R237 (Deleted)
R238 8230 004752 Vertical mounting, 7.5K?
R239 8230 0045 12 " " 5. TKR
R240 (Deleted}
R241 8230 004182 Vertical mounting, 1.8K
R242 (Deleted)
R243 3230004229 Vertical mounting, 2.29
R244 8230 0047 52 " " 7.5K2
R245 8230 006102 Flat mounting, ----- TK
R246 8230 0061 04 " " 100K2:
R247 (Deleted)
R248 8230 006362 Flat mounting, --- 3.6K2
R249 8230 0061 53 " " 15K2
R250 8230 0069 13 " " 91 Ki
R251 (Deleted)
R252 8230 006133 Flat mounting, 13K8
R253 (Deleted)
R254 8230 006362 Flat mounting, --- 3.6КЯ
R255 8230 0061 53 " " 15Ki
R256 8230 0069 13 " " 91Ka
#257 8230 0061 02 " " TK?
R258 8230 0061 05 " " IL?
R259 8230 0061 04 " " 100K2
CAPACITORS
C201 8232 026242 Mylar, 50Y, 0.0024uF, 5%, AMY
L202 8232 0268 22 " “ 0.0082uF, “ "
C203, 204 8232 0263 02 " " Q,003uF, " "
C205 8232 O262 42 " " O.00¢4uF, "о"
Ref. No. Parts No, Nomenc lature
C206 8232 0268 22 " " Q.0082uF, " "
C207 8232 0263 02 " " 0, 003uF, " "
C208 8232 054106 Electrolytic, 16¥, 10uF, 20%, BP, SL
c209 8232 026362 Mylar, 50Y, 0.0036uF, 5%, AMX
C710 8232 0261 02 " " @.00)uF, " “
C211 8232 0262 23 " " @.022uF, " "
C212 8232 0261 63 и "0.01647, " "
C713 8232 0261 62 " " @.00)6uF, " "
C214 B232 0261 03 " " Q.01uF, "oN
C215 8232 050511 Ceramic, 50Y, 510pF, " NPO
2216 8232 026822 Mylar, SOV, 0.0082uF, " AMX
C217 8232 0265 12 " " G.006510F, " "
C218 8232 0263 02 " " 0,003uF, " "
C219 8232 0262 23 " " QO.022uF, " "
C220 8232 0805 13 " " 0.05147, " AMZ
C2? | 6232 0263 33 " " 0.033uF, " АМХ
C222 8232 0262 23 — Mylar, 50V, 0.022uF, 5%, AMX
C223 (Deleted)
C224 8232 026153 Mylar, 50Y, 0.015uF, 5%, AMX
C225 (Deleted)
C226 8232 026562 Mylar, 50%, 0.0056uF, 5%, AMX
C227 (Deleted)
C228 8232 0322 7) Ceramic, 50%, 270pF, 5%, NPO
C229 8232 026392 Mylar, 50Y, 0.0039uF, " AMX
C230 (Deleted)
C23i 8232 0501 51 Ceramic, 50%, 150pF, “ SL
C23? 8232 0262 72 Mylar, 50V, 0.0027uF, " AMX
(233 8232 0262 22 " " Q0.0022uF, " "
C234 8232 0261 82 " " 9.,0018uF, " "
C735 {Deleted}
C236 8232 0261 32 — Mylar, SOV, 0.0013uF, " "
C237 8232 032560 Ceramic, 50V, 56pF, 5%, NPO
C238 8232 031911 Polypropylene, 100V, 910pF, 5%, APS
C239 8232 026223 Mylar, 50Y, 0.022uF, 5%, AMX
2240 8232 0805 13 " “ @.05TuF, "о"
C24) 8232 0263 33 " " §.033uF, " "
C24? 8232 0262 23 " " 9.022uF, * "
C243 (Deleted)
C244 8232 026153 Mylar, 50%, 0.015uF, " "
C245 (Deleted)
C246 8232 0265 62 Mylar, 50Y, 0.00564F, " *
C24? (Deleted)
C248 8232 054106 «Electrolytic, 16Y, 10uF, 20%, BP, SL
C249, 250 8232 074000 Polypropylene, 50V, 0.luF, 20%, Y5U
MISCELLANEOUS
5201 8253046000 Switch, rotary, 50825
5702 9253 0450 00 " " 50855
8276122101 Cable ass'y, ВР, A, 100mm
8276159016 Cable, flat, red/wht, 160mm
8220 1620 00
Bracket, PCE
29
30
HIGH PASS FILTER PCB ASSEMBLY, Ass'y No. 8273 1020 00
Ref. No. Parts No. Nomenclature Ref. No. Parts No. Nomenclature
8251 1450 00 PCB, Filter R245 8230006192 Flat mounting, TKR
IC R246 8230 0061 04 " " 100KR
R247 (Deleted)
u201 8236 025700 Analog, TLO72CP R248 8230006362 Flat mounting, 3. 6K
CARBON RESISTORS R249 8230 0061 53 " 0 15K2
All resistors 44, +5% unless otherwise noted. R250 8230 0069 13 u 8 9 Ко
#201 8230 0042 73 Vertical mounting, 27K2 R251 (Deleted)
R202 (Deleted) R252 8230 0061 33 " 13K5
R203 8230 0043 03 Vertical mounting, 30K% R253 (Deleted }
R204 8230 0044 33 " " 4ЗКЯ R254 8230006362 Flat mounting, 3. 6KR
R205 8230 0041 03 “ " 10KR R255 8230 0061 53 “ " 15kR
R206 8230 0043 93 " " 39K2 R256 8230 0069 13 " " 9] кя
9207 8230 0046 82 " " 6. 8K2 R257 8230 0061 02 " н Lt
R208 8230 0047 52 " " 7. 5KR R258 8230 0061 05 " " 1
R209 8230 0044 32 " ' 4.39 R259 8230 0061 04 ' " 1OOKR
R210 8230 0045 12 " " 5. 1K |
R211 8230 0041 32 " " 1. 3Ka CAPACITORS
R212 8230 0049 11 " " 9108 C201 8232 026183 Mylar, 50Y, 0.018uF, 5%, AMX
R213 8230 0042 93 " " 20K8 (20? (Deleted)
R214 8230 0042 23 " " 22K8 C203, 204 8232026512 Mylar, SOV, 0.005luF, 5%, AMX
R215 8230 0046 82 " " 6. 8K2 C205 8232 0261 83 " " 0.0187, "o"
R216 (Deleted) C206 (Deleted)
R217 8230004302 Vertical mounting, 3kR C207 8232 0265 12 Mylar, 50Y, 0.005luF, 5%, AMX
R218 8230 0041 ¿2 : " T.2kn C208 8232 0541 06 Electrolytic, 16V, 1OuF, 20%, BP, SM
R219 8230 0041 02 y " Ika C209 8232 026152 Mylar, 50Y, 0.0015uF, 5%, AMX
R220 8230 0042 42 " \ 2.42 C210 8232 0262 03 " " 0.0247, " *
R221 8230 0043 3] " " 3300 C211 (Deleted)
R222 8230 0065 61 Flat mounting, 5609 C212 8232 026133 Mylar, 50Y, 0.013uF, 5%, AMX
R223 8230 0041 84 Vertical mounting, 180Kg c213 8232 050331 Ceramic, 50V, 330pF, " SL
R224 (Deleted) C214 8232 026512 Mylar, 50V, 0.005luF, ° AMX
R225 8230 0041 34 Vertical mounting, 130K2 C215 8232 0262 02 " " 9.,002uUF, ? ”
R226 8230 0041 25 " " 1.2; C216 {Deleted)
R22? 8230 0045 13 " " Ук C217 8232 026102 Mylar, 50Y, O.001uF, 5%, AMX
R228 8230 0042 03 Vertical mounting, 200 6218 8232 032221 Ceramic, 50V, 220рЕ, “ NPO
R229 8230 0041 13 # " 11KR C219 8232 026432 Mylar, 50V, 0.0043uF, " AMX
R230 (Deleted) C220 8232 0805 13 " " O.051uf, " AMZ
R231 8230 0044 32 Vertical mounting, 4.3K2 (221 8232 0263 33 " " 0.03342, ” AMX
R232 {Deleted} C222 8232 0264 32 " " 0.004347, " "
R233 8230 004113 Vertical mounting, 11K2 6223 8232 0269 12 ‘ "“ O.0091uF, " "
R234 8230 0042 03 " " 20K2 C224 8232 0261 52 " " 0.0015\Е, " "
R235 8230 0042 23 " " 22K0 C225 8232 0263 02 " " 9.003uF, " "
R236 8230 0046 82 " " 6.8K C226 8232 0262 02 " “ 0.00247, " "
R237 (Deleted) Cee? 8232 0371 21 Ceramic, 50¥, 120pF, " МРО
R238 8230004302 Vertical mounting, 3K C228 (Deleted)
R239 8230 0041 22 " " 1.2K0 C229 8232 032151 Ceramic, 50%, 150pF, 5%, NPO
R240 (Deleted) C230 8232 026302 Mylar, 50V, 0.003uF, " AMX
R241 8230 0046 81 Vertical mounting, 6800 C231 8232 032101 Ceramic, 50%, 10GpF, " NFO
R242 (Deleted) C232 8232 0262 02 Mylar, 50Y, 0.00ZuF, " AMX
R243 8230 0043 31 Vertical mounting, 3308 C233 8232 0261 02 " " Q.00luF,; " "
R244 8230 0045 61 " " 5602 C234 8232 0505 11 Ceramic, 50Y, 510pF, " SL
Ref. No. Parts No. Nomenclature
C235 (Deleted)
C236 8232 050361 Ceramic, 50¥, 360pF, 5%, SL
C237 8232 0325 10 " " РЕ, " МО
C238 8232 0322 01 " " 200pF, “ "
C239 8232 0264 32 Mylar, 50V, 0.0043uF, " AMY
C240 8232 0805 13 и " 0.05luF, " "
C24] 8232 0263 33 " " Q.033uF, “ "
(242 8232 0263 32 " " 0.003347, © "
C243 8232 0261 03 " " 0.0, "0"
C244 8232 0261 52 ° " O.0015uF, " ”
C245 8232 0263 02 " " Q.003uF, " "
C246 8232 0262 02 " "0.00247, “ "
C247 8232 032121 Ceramic, 50Y, 120pF, " NPO
C248 8232 054106 Electrolytic, 16Y, 10uF, 20%, BP, SM
C243, 250 8232 974000 Ceramic, 50%, 0.147, 20%, Y5U
MISCELLANEOUS
$201 8253 0460 00 Switch, rotary, $0825
$202 8253 0450 00 " " $0865
8276 1221 091 Cable ass'y, ВР, A, 100mm
8276 159016 Cable, flat, red/wht, 160mm
8220 162000 Bracket, PCB
LED PCB ASSEMBLY
LED A PCB ASSEMBLY, Ass'y No. 8273 1030 00
Ref. No. Parts No. Nomenclature
8251146000 PCB, LED
0403 nn 403 8234001401 Opto, LED, LN222RP
8212003000 Holder, LED, H7
0404 8234 002500 Diode, 151588
CARBON RESISTORS
RAD] 8230 006152 Flat mtg., 4H, +5%, 1.5K5
R402 8230 0082 22 " " sh, " 2.2K
8276 230029 Connector ass'y, 3P, blk, 290mm
LED B PCB ASSEMBLY, Ass' y No. 8273 1040 00
Ref, No. Parts No. Nomenclature
8251 146000 PCB, LED
0401 % 403 8234001401 Opto, LED, LN222RP
8276160006 Table, flat, 3P, 60mm
31
32
PHASE PCB ASSEMBLY
LOW CUT PCB ASSEMBLY, Ass'y No. 8273 1070 00
Ref. No. Parts No.
Nomenclature
8251 1470 02
8253 0400 04
8276 2370 23
PCE, low cut
Switch, slide, 2-2, non-short, 558022
Cable ass'y, БР, wht, 230mm
PHASE PCB ASSEMBLY, Ass'y No. 8273 1080 00
Ref. No. Farts No. Nomenclature
8251 1480 00 FCB, phase
8253 040004 Switeh, slide, 2-2, non-short, %58022
8276 1371 00
8276 1960 08
8276 0141 00
Cable ass’y, С, 2 wire, 150mm
Cabie, flat, 3 wire, 80mm
Cable ass'y, switch В, БР, 130mm
GAIN CONTROL PCB ASSEMBLY, Ass'y No. 8273 1060 00
Ref. №, Parts No. Nomenclature
8251 347003 PCB, gain control
8240 051000 Gain control, detent, 10K5, A
8276 1241 02
Cable ass'y, 3P, B, 150mm
POWER SUPPLY PCB ASSEMBLY
POWER SUPPLY PCB ASSEMBLY,
Ass'y No. 8273 1050 00
Ref. No. Parts No. Nomenclature
8251 147001 PCB, power supply
I¢
1501 8236023400 Analog, NJM7EMI5A
(1502 8236 0244 00 " NJM7 9154
DIODE
050] 8234 0017 03 Stack, WO?
CAPACITORS
C505, 506 8232 0051 08 Electrolytic, 35¥, 1000uF, 20%, SM
C507, 508 8232 004227 " 25Y, 220uF, 20%, SM
MISCELLANEOUS
J501 $245 0010 04 Jack, 5045-044
8239 0001 00 Holder, fuse, $-N5051
8239 0012 00 " | 5-N5056
8239000520 Fuse, Dentori, 2A
8239 0003 20 " UL/CSA, 2A
8239 0004 20 " SEMKO, 2A
8220 1650 00
8239 0010 01
Heat sink
Insulator, transistor, В kit
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FOSTEX
FOSTEX CORPORATION 512, Mryazawa-cho, Akıshıma, Tokyo, Japan FOSTEX CORPORATION OF AMERICA 15431, Blackburn Ave, Norwalk, CA 90656, USA,
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