Scott 430A User manual

Service Manual
Integrated StereoAmplifiers
430A/410A
HSCOTT
TheNameto listen to.

CONTENTS
Specifications 3
Block Diagram 4
Circuit Description 5
Adjustment 6
Schematic Diagram 7
Parts Location Diagram 9
Exploded View 10
Replacement Parts List 12
CAUTION NOTICE
The following safety precautions must be followed to assure
continued reliability and safety against fire and shock hazard:
1. Replacement parts used during servicing of this appliance
must have identical characteristics as those offered and
recommended by H. H. Scott, Inc.
2. Adielectric test is to be performed on each appliance
following the re-assembly and before returning the unit to
the custmer.
3. The dielectric test to be performed on H. H. Scott, Inc.
electric components serviced in the United States and
Canada for use in these countries shall consist of not less
than the following: *
1) Adielectirc tester designed to supply not less than 1100
volts at 60Hz and employing leakage current indicator(s),
is to be used.
2) The tester is to be connected per the instructions
enclosed with the instrument, or as follows:
a. The tester is connected to the power line receptacle
and the power switch is turned on.
b. Sufficient time is allowed for the tester supply to
stabilize and then the output voltage is adjusted for
1080V.
c. Leads of the tester, usually marked GND and HV,
are connected between chassis ground and both
blades of the male plug of the power cord.
d. Switch tester to "test" and observe leakage indicator.
Leakage current must not exceed 0.5mA.
*Dielectric tests made by service personnel in countries other
than USA and Canada must use test equipment and procedures
specified by the safety agency serving that country.

SPECIFICATIONS 430A (410A)
Minimum Continuous RMS Output Power per
channel, both channels driven into 8Ohms from
20 Hz -20 kHz with no more than rated THD
45 watts (30 watts)
Total Harmonic Distortion [78 IHF rated, at 20 Hz -20 kHz]
0.08% (0.1%)
Intermodulation Distortion [at rated output, 60:7000Hz; 4: 1]
0.08% (0.1%)
Frequency Response [at 1 watt output, ±ldB]
20 Hz to 20 kHz
Power Bandwidth [at —3dB]
10 Hz to 30 kHz (15 Hz to 30 kHz)
Damping Factor [at 1kHz, for 8Ohm load]
>40
Input Sensitivity [for rated output]
Phono: 2.5mV
Aux, Tuner: 150mV
Tape 1and 2: 150mV
Tape 2DIN Input: 150mV
Maximum Input Voltage
Phono: 150mV
Aux, Tuner: 10V
Tape 1and 2: 10V
Tape 2DIN Input: 10V
Signal-to-Noise Ratio [shorted input, IHF Anetwork]
Phono, Ref. 10mV: 85dB
Aux, Tuner: 90dB
Tape 1and 2: 90dB
Tape 2DIN input: 90dB
Tone Control Range
Bass (100 Hz): +10dB
Treble (10 kHz): ±10dB
Loudness Contour [Volume Control set to -30dB]
100 Hz: +7dB
10 kHz: +3.5dB
Crosstalk
1kHz: 75dB
Channel Balance [maximum Volume Control]
0.5dB (0.7dB)
RIAA Tolerance [78 RIAA rated, 20 Hz to 20 kHz]
+0.7dB
Channel Separation [78 IHF rated]
Phono (1 kHz): 60dB (55dB)
Aux, Tuner, Accessory Input, Tape 1and 2,
Tape 2DIN Input (1 kHz): 60dB
Tape Recording Output Level [at rated input sensitivity level]
Tape 1Rec: 150mV
Tape 2Rec: 150mV
Tape 2DIN Output: 30mV
AC Power Requirement*
220V 50Hz
Power Consumption
370W (250W)
Dimensions
17-3/4"W, 5-1/4-H, ll-3/4"D (17-3/4", 5-1/4", 8-1/2")
430W, 132H, 300D (430, 132, 217) mm
Net Weight
18.9 lbs (15.5 lbs)
8.5 kg (7.0 kgs)
*AC Power:
Units for Great Britain: 240V, 50Hz
Units for USA and Canada: 120V, 60Hz
Class 2, double isolation system employed
3

CIRCUIT DESCRIPTION
Design Philosophy on 430A and 410A
When using ahigh gain wide band open loop operational
amplifiers, it is possible to design apassive network
providing anegative feedback to control the amplifier gain
and frequency response. In fact it makes easy the
reproduction and repititivity of the wanted results.
We can define the gain of such an amplifier as follows.
Zm
o'VW-
Vln
Or
OP
AMP
3PHONO IN RCH C4
[PHONO AMPLtFIER USING OP AMP]
1) Vo =-Vin-
2) Rin =
Zf
Zin (Inverting Amp.)
OOUT
3) Vo =Vin •1+
Zinc—Rin ^
Zf
Zl
Zino •Gopenloop
Gclosedloop
(Non Inverting)
Where Rinis the input load resistor. Zmis the open loop
input impedance multiplied by open loop gain divided by
closed loop gain.
Example: If open loop gain is 10,000 (i.e) 80dB) and the
closed loop gain is 100 (i.e 40dB). For an
amplifier having Zin =10K ohm, the
equivalent Zinc=Rin // 1000K ohm.
Phono Equalizer: The phono non inverting amplifier
equalizer consists of an operational amplifier with afeedback
network to fullfil the RIAA equalizing requirements.
Zf =R8 // XC6+RlO »*c8
Zl =Ri2 +Xci2
11
where Xc=2TTf-C 6.28 f-c
f=frequency
c=capacitance in Farads
R=Resistance in Ohms
The above network provides again of 60 at 1kHz and again
variation as function to the value of Zf and Z\ at any given
frequency. For example at 100Hz the gain is 265 or
+12.9dB referred to 1kHz gain, at 10kHz gain is about 13
or -l3.7dB referred to 1kHz gain.
Premain Amplifier
The premain amplifier is an operational amplifier built by
discrete components. It is directly coupled to the load (i.e
speakers). The high gain open loop is provided by the dual
differential amplifiers and the boostrap capacitor. The
complementary output drivers/buffers provide asymmetrical
output drive.
The amplifier is controlled by multiple feedback networks:
DC feedback (R93 +R95) on one channel (R94 +R96) on
the other are directly coupled between output and negative
input. The effect of the DC feedback is for longterm
stability and unity DC gain. The effect of this feedback is
minor at frequencies over 5Hz. The multipole AC
feedback network (with the bass and treble potentiometers
incorporated) provides aconstant gain with no effective
gain variations of tone potentiometers. At 100Hz the bass
potentiometer allows gain control of ±10dB. At 10,000Hz
the treble potentiometer allows gain control of ±!OdB.
The amplifier has acurrent limit network that limits
excessive current loading. Afuse is provided to prevent
damage to speakers if the amplifier fails.
Tone Control
The tone control is anegative feedback type whicli uses the
power amplifier stage as the active element. That is, the
gain of the power amplifier stage is controlled by the tone
controls circuitry. At 1kHz, the position of the tone
controls has little effect on the gain, as C5 3impedance is
high, removing VR2 from the circuit, and CI, C3
impedance is low, effectively short circuiting VR1.
Bass Control: As the frequency decreases below 1kHz,
the impedance of CI and C3 increases proportionately.
Thus at very low frequencies, the gain is mainly determined
by the position of the bass control VR1. Rotating VR1
toward R3 will boost the low frequencies, while turning it
towards C4 will cut the bass.
Treble Control: At high frequencies, as at 1kHz, \/Rl is
effectively short circuited. At these frequencies, \owever
C53 and C55 impdeance decreases, so that VR2 Is comes the
the main control of the amplifier gain. Rotating VR2
towards C53 cuts the treble response.
5

Power Amplifier
This circuit is an OCL, pure complementary amplifier. The
input stage consists of two differential amplifiers (Ql and
Q.3/Q.5). The first differential amplifier (Ql )is amatched
transistor pair in one package providing excellent common
mode rejection and low DC offset. Q5 acts as the voltage
amplifier providing voltage swing to nearly full plus and
minus supply. Current gain is then provided by the fully
complementary Darlington pairs of Q7 and Ql (Power
transistor) for the positive swing, Q9 and Q3 (Power
transistor) for the negative swing. The output stage bias is
set by the double diode Dl and RV1. As previously
described, amplifier gain is set by tone control circuitry.
The driver and output stage is protected from short circuit
and overload by transistors Qll and Q13, which short out
the driving signal when current through the output transistor
reaches an excessive level.
Power Supply
The main power supply consists of afull wave bridge
rectifier and two 6800uF capacitors. The B+ and B-
regulators (zeners, D31 &D32) supply stabilized voltage
for the low level circuitry.
Unwanted transients are eliminated by circuitry consisting
of Q16 which performs amuting function when the unit is
switched ON or OFF.
The base bias of Q16 is given by two different circuits; one
normal positive line voltage circuit having alarge time
constant, and another negative supply voltage circuit having
asmall time constant (C63/R84). At turn on, the negative
voltage is immediately supplied to the base of Q16 because
of its smaller time constant, and this makes Q16 cut off.
Then C61 is gradually charged up by the normal positive
power line voltage and when the charged level is reached to
aproper level, the power line switching transistor Ql 5is
turned on and supplies the power to the differential
amplifiers. At turn off, the negative base supply voltage
to the Q16 is immediately decreased to zero because of its
small time constant, then the base bias is supplied from the
positive power line voltage only, and Q16 is turned on
immediately, resulting in shorting the Ql 5base to the
ground and eliminating the supply for the differential
amplifiers, stoping amplifier operation immediately.
ADJUSTMENT
Equipment Required
Audio signal generator
DC voltmeter
Speaker load resistors, 8Ohms, 100W
Digital voltmeter
The following adjustments are the same for both left and
right channels.
Bias Adjustment
1) Connect 8Ohm resistors to the speaker "A" terminals,
and set the Speaker Mode switch to "A" position.
2) Turn the Volume control fully counter-clockwise.
3) Turn RV1 fully counter-clockwise.
4) Set digital voltmeter to most sensitive voltage range.
Connect probes across TP1 and TP2 (Voltmeter bias test
point, Lchannel).
Turn unit on. Let it idle for 10 seconds.
Adjust RV1 for 40mVacross the resistors.
5) Perform the same procedure for the right channel, except
measure voltage across TP 3and TP4 (Voltmeter bias
test point, Rchannel).
Adjustment is made with RV2.
6) Leave the amplifier on for about 30 minutes, then.
recheck measurement. Atolerance of +25% is
acceptable. Readjust if necessary.
6

6I
<CE
V) <
*CO
is
<_i
w>
DC cn
Of,

<
o
<
DC
3
Q
O
LU
X
8Br/ 0«v
CO 1XJ
o55oo
58

PARTS LOCATION DIAGRAM: 430A/410A
PSAB005COX, Main P.C. Board PSTC036COX, Tone

01

REPLACEMENT PARTS LIST: 43OA
EXPLODED
ASSEMBLY PART NAM
FIFC. .El. FMFN
£PART coot
TS AAB3B4FSrL1
STOCK NO
+
EREMARKS PART CODE PART, STOCK NUMBER PART NAME SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1ar. r.rmn assy AC I
2apsi r>03°AA p.w. board assy. 1
3apsswpsbaa p.w. board assy. 1
*APS430A*E1 p.w. shard assy. 1
5r.FAGOl OALX ELYT. CAPACITDR 1MFD 50V CI C ?2
6r.NST 103WAN OIL PAPER CAP. C3 C4 2
7r,43OA*FA02 WIRES KIT 1
8OTA10A2XAN TRANS ISTOR 2SA1062 P.O-RANK 03 04 2
90TC2486XAN TRANS ISTOR 2SC2486 P.O-RANK 01 02 2
10 RC2ANJ271B M-OXIOF FILM R. 2W 270 OHM 51 *1R2 2
11 SR0204107T ROTARY SHI TCH S2
12 TPB83S001Y PHR. TRANSFORMER PT 1
13 VM270NB004 BUSHING ACfll
14 VX432VL002 C-COVER ZZ 1ZZ2
15 YHF IP2001Z FUSE HOLDER FH 1
16 YJSO3S016Z PHONE JACK J3
17 YTD01S002U TERMINAL J4
IS YTSO4S007U TERMINAL Jl J2
19 ZFRQ16201A FUSE =1
20 ZFBO32101A FUSE F4
21 ZFBO40203A FUSE F2 F3 F5 F6 4
2S ZMD205OK01 METER 7SA70R 11 M2 2
23 7PA14Rin3l] LAMP LP! LP2 ?
EXPLODED
ASSEMBLY PART NAM
MFCH. Ft FMFN
EPART CODE
TS A A B3B AFSC 1'
STOCK NO.
REMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1AM4304»*01 FSCU1*CHEON ASSY 11
2RNHC.I 3ONBN NUT M3. RS-NI .THIN-TYPF R?4 1
3RRP30S50NB PAN HFAO RIVFT BZB-1 B2B-? 2
4RRII2455XAJ THIN HO RIVFT 2.4 X 5 .5 Al MINIIM B21-1 821-2 2
5BSP R3O0RNN BIND HFAO SC RF
W
I4-IR1T. M3 Xfl S-NI B2S-1 B25-2 2
6BSPRSO 10NB RIND HFAD SC.RFW (URIT. MS X10 S-Rl ACK B1T-1 D17-2 817-3 917-4 4
7BSPC3C0f>NZ CFHS SCRFW (+1BIT .M3 X 6 S-ZNCR U5-1 B15-2 B16-1 B16-2 1o
8116-3 B16-4 B16-5 B16-6
9316-7 B16-B
10 BSPC3O10N7 CEMS SCREW (IBIT. M3 X10 S-ZNCR B26-1 B26-2 B26-3 B26-4 4
11 8SPP3010NP PAN HEAD SCREW (IBIT. M3 X10 PLAS7KC 923 1
12
13
BTPL3O0BBB NAIL TAP SCREW (+1BIT, M3 X8S-8LAU B12-1 B12-2 B12-3 B12-4 4
BTPP300RA8 PAN TAP SCREW (IBIT. M3 X8 S -BLACK B13-1 B13-2 B13-3 :B13-4 XI
14
15
U3-5 B13-6 813-7 B14-1
U14-2 B14-3 B14-4 :
16 BTPS3O0BTZ FLAT TAP SCREW (IBIT. M3 XRS-ZNCR (TAP TITEI S18-1 B18-2 B18-3 :3
17 BTPW3008BB BRAS. TAP SCREW (IBIT, M3 X 8 S-BLAC< B9-I B9-2 2
16 BTPWIOORRJ BRAS. TAP SCREW B22 1
19 BTPW3O0BBZ BRAS. TAP SCREW (IBIT. M3 X8S-ZNCR Bl-1-3 B4-l~3 B5-l~2 S2 ... 2-5
20 129-1 IB29-2 B3-1-8 *6-l
12

EXPLODED
ASSEMBLY PART NAM
MFCH. Fl FM FN
£PART CODE
T,s aartrafsci >
STOCK NO.
JREMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1B6-2 IB6-3 B6-4
2Rf>-4 |R6-7 RA-fl :B7-1
3R7-7
4BTPW301OA? BRAS. TAP SCREW (IBITi M3 X10 S-ZNCR RI1-1 :bii-? Rll-3 Bll-4, It
5R8-1 B8-? B8-3 B8-4
6B8-5 IB8-6
7RT PW30 1"BZ RRAS. TAP SCREW (IRIT, M3 X10 S-ZNCR B10-1 :bio-7 BIO--* B10-4 A
8RUM30A08SN FLAT L. WASHER FLAT LAROE t3M/M S-N
I
R20 ;B30 2
9RWV30 70SSN FLAT L.WASHER FLAT LARGE, 3M/M S-N
I
B27-1 IB27-2 B27-3 B27-4 t
10 B31-1 B31-2
11 RW*<>0r08SR FLAT L. WASHER FLAT LARGE, 5M/M S-BLACK R19-1 B19-2 B19-3 819-4
12 MB9 7? SE^ft 7REAR PANEL 51
13 MB972SL007 FRONT PANFL 21
14 MC371SZ002 RRACKF Tb-1 6-2 2
15 MC865SL002 CHASSIS 31
16 ML331SS001 TERMINAL 18 1
17 ML765SL002 SHIELD 17 1
18 MN276XA020 knir 14-1 14-2 14-3 ?
19 MN37& fl AO 19 KNOB RS 12-1 12-2 ?
20 MN386XA024 KNOB 13 1
21 MS986SL004 ROTTOH PLATE 10 1
22 MU6S3 axnoi HFAT SINK B-1 8-2 8-3 J
23 M( )RS (103 SIDF BRACKET R41
EXPLODED
ASSEMBLY PART NAME PART CODE
MFC H. F! FMFNTS AAB3RAFSCI 7
STOCK NO.
REMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1MU875An001 HEAT SINK 7
2MUB97SX021 COVFR 91
3MVL63SGF01 SER.NC PLATE 11
4VR532 AW001 LAMP HOUSE 20-1 20-2 7
5VF177FRO01 BUSHING 28 1
6VMlh5RXn03 HOLDFR 21-1 21-2 3
7VM2B1FROni FOOT 19-1 19-2 19-3 19-4 4
8VN220SX001 POW KNOB 16 1
9VN369SXO01 KNDR 15-1 15-2 15-3 15-4 4
10 vs?27RBnni SHFFT 27-1 27-2 27-3 27-4 4
11 VS325VNO0I BARRIER 24 1
12 VS41 7NNO03 CLAMPER. 23 I
13 VVL311GF54 FUSF LABEL 22 1
EXPLODED
ASSEMBLY PART NAM
FSC UTf HcnN A
EPART CODE
SSY AM43nA'*nl
STOCK NO.
REMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. Q'TV
USED
1ME97FAA104 ESCUTCHEON U-1
2VK137SX004 RUSH 1FVFR ir.-i ir-j 2
3VK132SX107 RUSH 1D-1 1D-? 1
4VK 133SX001 RUSH POWFR IE .-X
5VK165SX004 METFR FRAME 1R-1 1B-? _i
6
7

EXPLODED
ASSEMBLY PART NAME |PART CODE
i.g.nniRD ASSY. APSAB005FO stock Na 1
1
1REMARKS PART CODE PART. STOCK NUMBER PART NAME Srfc.t-.lr ICA 1lUNb SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
M
1TFR1 21K0T CERAMIC CAP. 120PF 50V -ID. »13* SL m2
rr cB7?lK0T rFR AM TrTAP. ??OPF 50V -10. tlOl SI "I c? 2
CERAMIC CAP. SL 10PF 50V -0.5. t0.5PF :25 C?6 C29 H-.30 4
4rrr-.HR7OK.0T CERAMIC CAP
.
87PF 50V -10. +10X SL C19 C20 _J
5rFAR?21ALX FLYT .CAPACITOR ?70»FD 6.3V C51 C52 2
6rcinioONLX Ft. YT. CAPACITOR C57 CSS 2
7rF»n??l ALX FIYT. CAPACITOR ??0«FD 16V C67 C68 ?
8rc»F470A LX FIYT. CAPACITOR 4THFD 25V C62 1
9rFAF470AL XELYT. CAPACITOR 47KFD 35V C3? C34 7
10 rFAfilOlALX FLYT. CAPACITOR lOOrTD 50V C61 1
11 rcq IC.82202 FLYT .CAPACITOR C65 C66 ;
12 rFvrlOlALX ELYT. CAPACITOR C47 C48 2
13 rFVC470ALX ELYT. CAPACITOR Cll ;C12 }
14 rF»ni OOALX ELYT. CAPACITOR C59 C.60
15 rFUF4R7ALX ELYT. CAPACITOR C43 C44 C45 £46 4
16 rFv/r.oiOALX FLYT. CAPACITOR CIO C17 CIS C3 S
17 C31 C32 C4 C9
18 rFVGlOOALX ELYT. CAPACITOR :2i C2J 2
19 rFVf,?R2ALX ELYT. CAPACITOR ;63 1
20 r«CFin3PEM CERAMIC CAP. 0.01MFD 500V -0. MODI EC64 1
21 CKFR223ZFT CERAMIC CAP. 0.022MFD 50V -20. 80* FC39 C40 iC4l C42 4
22 rK FR473Z FT CERAMIC CAP. 0.047MFD 50V -20. *80% FC71 C72 ?
23 rirr.n56lKBT CERAMIC CAP. 560PF 50V -10. *'.0l B:70 1
EXPLODED
ASSEMBLY PART NAME
D-U-ROAPO ASSY .
PART CODE
AP SAB005E0
STOCK NO.
REMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1roMB122JEH MYLAR CAPACITOR 120OPF 50V -5, «5% C7 C8 2
2rr)MRl9?JFH MYIAR CAPACITOR 3900PF 50 V-5. #M C5 ?
3rqMR473KTH MYLAR CAPACITOR 0.047MFD 50 V-10. +13Z C55 C56 ?
4rcjMR5h?KTH MYLAR CAPACITOR 5600PF 50 V-10. tlOX C53 ICS* ;
5rCJMR56 3KTH MYLAR CAPACITOR O,056rfD 50V -10. lot C15 C16 Z
SraMC563KEH MYLAR CAPACITOR C49 |C50 2
71All F1074A CHOKE COIL LI :L2 ?
8MU201BS001 TERMINAL
9MW401CX006 SHOT JAMPER 24
10 o<AR005COX PRINTED H. BOARD I
11 c^mAf-cx PRINTED u. BOARD J
12 r,n C.1N6 OXXT GERMANIUM DIODE NO-RANK 321 022 U23 024 4
13 nnsC.M3ZXXO SILICflN DIODE CM3? NO-RANK 033 ID34 |D35 036 4
14 nnsN444BXZ SILICON OIOOE 1N4448 VRMMOOV NO- RANK D13 :oi4 :oi5 016 19
15 317 |ni8 iD19 D20
16 32 5'026 ;D27 029
17 330 |D3 7038 05
11 (36 :07 IDS
It qnsRAl ZXXO SILICON DIODE RA1Z NO-RANK 1310 ion loi2 D9 4
2t qn7RD15ECA ZENER DIODE «DI5F(CI VZ»14.7-16.5 C-RAN4 331 ID32 2
2OOZR022ECA ZENFR OIOOE RD22EC VZ-22 -24.5 C-RANK 328 1
2! nr,Mn65 51BN I.C. Jl i|1
11r,TA07?0XBN TRANSI STOR R-RANK SI? ioi4 I
14

EXPLODED
ASSEMBLY PACT HAH
P.W.BOAPQ AS
E PART C0OC
SY .APSABOOSFO STOCK NO.
t
iREMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO QTY
USED
OT A0794XAN TRANSI STOR 010 :o9 i
OTA079RXFF transi STOR 7SA7QB F. f.-RANK BRFAK VOI TAC,F»7(W 01 p7 7
QTC131 AXON
'
TRANSI STOR 2SC1318 O.R-RANK o_ii ;oi2 ;
0TC1567XAN TRANS TSTOR 07 08 1
5QTC16B5XAN TRANST ST HR 2SC1685 O.R-RANK 015 016 03 04 s
6OTC1885XAN TRANS ISTOR ?srms5 R.S-RANK 05 06 2
QVESTV3HXD VARISTOR STV-3H O.Y-RANK (VF: 1-60V-1. 74VI D3 04 2
8Rn?5P Jin?x CARRDN FILM R. 0.25H IK OHM 5* R15 R16 R25 R26 A
RD25PJ104X CARBON FILM R. 0.25W 100K OHM 51 Rl R2 R3 R4 5
10 RB6
Rr>25PJi;>?x CAPPON FILM R. 0.25W l.i>K OHM 5* R73 R74 2
RD25PJ 132X CARBON FILM R. 0.25W 1.3K OHM 51 Rll R12 2
13 P025PJ133X CARBON FII M R. 0.25H 13K OHM 5* R21 R22 P
14 n^RD iitit CARBON FILM R. 0.25W 1.8K OHM 5* R81 R82 2
15 ro75pj2?ox CARBON FILM R. 0.25W 22 OHM 5X R88 1
16 RD25PJ222X CARBON FILM R. 0.25H 2.7K OHM 5X U7 R18 R84 ?
17 R025PJ273X CARBON FILM R. 0.25W 22K OHM 5* «29 P30 R93 R94 6
18 R95 R96
19 R025PJ 224X CARBON FILM R. 0.25K 220K OHM 5* 113 R14 2
20 R025PJ771X CAR BON FII MR. 0.75W 270 OHM 5T *69 R70 R.75 R76 «
21 !97 R98
22 RD25PJ272X CARBON FILM R. 0.25U 7.7K OHM 5* *79 R80 2
23 RO?5PJ«2X CARBON FILM R. 0.25W 3.3K OHM 5* R61 R62 R63 R64 4
EXPLODED
ASSEMBLY PART NAM
P.W.BOAOO AS
E PART CODE
SY. AP SA8005FO
STOCK NO.
iREMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
iR025PJ333X CARBON FILM R. 0.25U 33K OHM 5X *85 1
2R07'iP.I39?X CARBON FILM R. n.?"iV 3.9K OHM 5X R31 !r3? R33 R34 f
3R71 R72
4R025PJ471 XCARBON FILM R. 0.25U 470 OHM 51 R91 R92 2
5R025PJ5MX CARBON FILM R. 0.25W 560 OHM 5* R5 R6 2
6R025PJ623X CARBON FILM R. 0.25H 62K OHM 5X 110 R9 2
7R025PJ6B1 XCARBON FILM R. 0.25H 680 OHM 5* R19 R20 2
8R025PJ683X CARBON FILM R. 0.25W 68K OHM 5X R23 R24 ?
9RD25PJ754X CARBON FILM R. 0.25K 750K OHM 5* R7 R8 2
10 R025T J270X CARBON FILM R. 0.25U 27 OHM 51 R*7 R48 2
11 RD25TJ331X CARBON FILM R. 0.25W 330 OHM 5t R57 R58 :R59 R60 4
12 R075T J5R6X CARBON FILM R. 0.25W 5.6 OHM 51 *27 R?8 2
13 R025TJ681X CARBON FILM R. 0.25W 680 OHM 5X !37 R38 i
14 RD25T J820X CARBON FILM R. 0.25W 82 OHM 5X R39 R40 I
15 RD25VJ101X CARBON FILM R. 0.25U 100 OHM 5* R65 P66 .2
16 R075VJ391X CARBON FILM R. 0.J5H 390 OHM 51 R99 1
17 RF02SKR47B UIRE WOUND R
.
2K 0.47 OHM 10X R53 R54 R55 iR56 4
18 RGHANJ151B M-OXIDE FILM R. 1/2 W150 OHM 51 <49 R50 R51 R52 4
19 RGHANJ1828 M-OXIDE FILM R. 1/?W 1.8K OHM 5X R77 R78 ?
20 RfSHAN J472B M-OXIO.F FILM R. 1/2H 4.7K OHM 51 <41 R4Z R43 R44 4
21 RGHARJ 1828 M-OXIDE FILM R. R87 1
22 RG tARJ 152
B
M-0X10F FILM R. -<89 R90 ,-2
23 PGURJ397B M-OXIOF FILM R. *83 1

EXPLODED
ASSEMBLY o.Ujnnion as
part ax*
SY. APSAROOSFD
STOCK NO.
tREMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1»flN»"102 SFMT-FIXFO VR. ?V1 1V2 2
2VR. /r? ;
3VR. /Rl
'
4qyQASn3N0? VR. VR}
5RXlAR.I 5P.6B M-OXinF FUN R. ?67 R68
6SHfl4030^ZB SLIDE. ROTARY SW SI
7si n?n??6ZN FVF RSWITCH 52 S3
8usr.9i6JJJJ SHIELDED HIRE N06
9WTC014EFXX SOLin WIRE NO 10
10 UTRS1 OEFXX sni in wirf NOU
11 WTC.A08FFXX sni 10 WIRE N012
12 WTR71 OEFXX sni 10 WIRE JO 13
13 UTr.Hl 5EFXX SOI in WIRE N014 '
14 WTH013ELXX SOLin WIRF 10 16 N017
15 WTH0 74FIXX sni in wirf M018
IS WT.IOI 8EMXX SOI ID WIRE Y015
17 UTM<JO<)EFXX sni io wire <I0 9
11 WTM<>1 OEFXX S 01 TO WIRE v-ns
IS U^FJITJXJJ shifi npn wirf xni
20 UUF41 3JXJJ shifi nfn WIRE NO?
21 WWF 51 8JXJJ SHIFLOEO WIRE W3 H
2! tfH ft' UXJJ shifi OFn WIRF w*
2ynf riprom zF1ISF HOI DER EH?-? km-? in
EXPLODED
ASSEMBLY PART NAME PART CODE g.w.nnwn ASSY .APSLO03<)AA
STOCK NO.
tREMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY USED
1PSI 003<JCOX PRINTEO.W. BOARD 1
2mRl M7 17RN 1.F,0. LN217RP RED 1EDI 1FD? LED3 3
3yTr.017BKXX SOI 10 WIRF NO! 1
4sni in wirf NT} 21
5
WTr.l 17RKXX
UTK71 7RKXX sni in WIRE N03 1
6WTfi3l7BKXX sni in wirf 41
7
8
9
10
EXPLODED
ASSEMBLY PART NAM Oj^-ROAPO AS
E)PART CQOC
sv. Upsswormu STOCK NO.
iREMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
iKU401 FX0O6 SHOT .1 AM.PFR «
2PR 1MTF W. BOARD 1
3
PSSWORAFOX
«n?SPJ2?2X rARRHN FII MR.n.?fb ?.7K OHM 5? PI R2 -2
4SI 040307ZN 1FVF RSWITCH SI S2' 2
5
8
7
8
S
10
16

EXPLODED
ASSEMBLY PART NAM
P. W. BOARD A?
E
SY .
PABT CODE
APSSWORSAA
STOCK NO
REMARKS PART CODE PART .STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1SHIFI nSL1 1
2PSSWORBCOX printfp u.roaro 1
3spdi aaso9A push switch S1 1
EXPLODED
ASSEMBLY PART NAME
PQ TWT PP MATTFP S
PART CODE
AAR1RAFSCL 1
STOCK NO
TREMARKS PART CODE PARI ,STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1KT430»*FCX PWNF R'SMANUAL 1
2KWOmi 21RX WAP PAN TY rAP D1
EXPLODED
ASSEMBLY PART NAME PART CODE P.'J.ROAOn fSSY. APSTC036.AD
STOCK NO.
REMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY USED
1CFVD1P0ALX Fl YT. rAPACI TOR C5 C6 ;
2CQMRl R4KFH MY 1AR T APAdTOR n.iaprn snv -in. tui r.4 2
3COMR273KTH MYI ARCAPACITOR 0.027 *0 50V -10. tlD! CI C? 2
4pstco36cox PRINTFO W. BOARD i
5RO?5PJ 123X CARRON FILM R. 0.25W 12K OHM >« Rl R2 2
6RD25PJlf>2X CAP RON F[ I MR. 0.25W 1.6K OHM 51 R3 2
7RVOA503N07 VR. VR 11
8Z7ZOOP012? PC .JOINT JU4 1
9
10
EXPLODED
ASSEMBLY PART NAM
P. W. BOARD AS
EPART CODE
SY. APSZ7027RA
STOCK NO.
REMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1MW4C>irxn06 SHOT JAMPFR 2
2PSA7077COX PRINTFO H. BOARD 1
3RD25PJ104X CARBON FILM R. 0.2*W 100K OHM 5J R5 P6 2
4RP75PJ222X CAP RON FILM P
.
0.25k 2.7K OHM 5t Sd P. 2
5R025PJ39'tX CARRON FILM R. 0.25W 390K OHM 5* R3 R4 2
6YJD01S01 1I5P DIN JACK J4
7YJP04S016U 4P-PIN JACK Jl J2 7
8YJP06SC"7U f>P. PIN JACK J3 1
9
10
EXPLODED
ASSEMBLY PART NAME PART CODE
P.H.ROAPn ASSY. APS430A*F1
STOCK NO.
REMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. OTY
USED
1APSABOO^EO P. W. BOARD ASSY. 1
2AP SS W0 BftP
A
P.W.ROARD ASSY.
3APSTC016 AP P. W. HOARD ASSY.
4APSZZ022RA P. w. BOARD ASSY.
5
6
7
8
9
10

41 OA
EXPLODED
ASSEMBLY PART NAM
ELFC. ElEMFf,
:PART OOK
TS AAB3.7AFSr.l1
STOCK NO.
iREMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
iACAC035EEA AC CORn ASSY AC 1
2apssuobraa P.W.RflARn ASSY. 1
3APS410A*£1 P.M. BOARD ASSY.
4CEAG010ALX FtYT. rAPAC ITOR 1MFO sov C1c? £
5CNST103MAN OIL PAPFR CAP. C3 C4?
6G41OA*EA01 WIRES KIT
7OTA 1 1 2XAD TRANS ISTOR g304 ?
80TC2577XA0 TRANS! STOR 01 02
9PG2ANJ271B M-OXIDE FILM R. 2W 270 OHM »1 R2 ?
10 SR0ZO41O9T ROTARY SWITCH S2
11 TPB83S002Y PWR. TRANSFORMER PT1 1
12 VM37ONB004 BUSHING ACB1 1
13 VX432Vl.no? c-r,nvER ZZ1 ZZ2 ?.
14 YHF1P2O01 ZFUSE HOLDER FH1 \
15 YJS03S016Z PHONE JACK J3 1
16 YTDO1SO02U TERMINAI J4 t
17 YTS04S007U TFRMINAL Jl J2 ?
18 7FBO13201A FUSE Fl 1
19 ZFB0321H AFUSE =4!
20 ZFB032201A FUSE .=2E3 F5 F6 4
21 ZMD2O5OK01 METER 78A70R mi M2 t
22 7PA1 4810311 LAMP LPl LP? 1
EXPLODED
ASSEMBLY PART NAM
MFf.H .Fl FMFfi
EPART COOE
TS SAB37AFSri'
STOCK NO
REMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1AM410A**01 FSrUTCHEflN ASSY 1
2RNHCI 30NSN NUT M3. S-N1. THIN— TYP FR?4 i
3HRP30550NB PAN HEAD RIVET BB-1 :rb-2
4BR U245 5Xft JTHIN HO RIVET 2.4 X5.5 ALMINUM B16-1 :Blf>-?
5RSPB300RNN -BIND HEAD SCREW (IBIT. M3 Xfl S-NI B20-1 :B20-2
6BSPB30 IONN RIND HFAO SCREW (MBIT. M3 X10 S-NI B19-1 ;BI9-? B19-3 B19-4
7BSPC3006NZ CFMS SCREW (IBIT. M3 X A S-ZNCR B14-1 814-2 B14-3 R14-4 11
8BI4-5 [B14-6 BI4-7 ;B14-8
9315-1 815-2
10 RSPP3010NP PAN HEAD SCREW (IBIT, M3 X10 PLASTIC B?3
11 BTPB50I0TB BIND HO SCRFW 112-1 »!?-? B12-3 :B12-4 <
12 RTPL 300BBR NAIL TAP SCREW I»)B1T. M3 X 8 S-BLACK B7-1 R7-? B7-3 87-4 <
13 BTPP3 OOB AP PAN TAP SCRFW (IBIT. M3 X8S-BIACK B30-1 ^30-2 B30-3 A30-4
14 B9-1 89-2 B9-3 89-4
15 B9-5 |B9-A B9-7
16 BTPS300STZ FLAT TAP SCREW (IBIT. M3 X8S-ZNCR (TAP TITF) B17-1 ;B17-2 B17-3 !3
17 BTP W3006BZ BRAS. TAP SCREW (•OBIT. M3 X6S-ZNCR B36-1 |B36-2 I
18 BTPW300RAZ BRAS. TAP SCREW (IBIT. M3 X 8 S-ZNCR BIB !R3-1 B3-2 3
19 BTPW3008BR 8RAS. TAP SCREW (IBIT, M3 X8S-BLAC< B5-1 :B5-? I
20
21
BTPW300RBJ BRAS. TAP SCREW 34-1 kt.-7 2
BTP W30088Z BRAS. TAP SCREW (IBIT, M3 X8S-ZNCR 31-1~8 i810-1-4! 23

EXPLODED
ASSEMBLY PART NAM
MFCH. Fl FMFN
£PART CODE
TS AAR17AESCI 7
STOCK NO.
REMARKS PART CODE PART, STOCK NUMBER PART NAME SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1B10-5 B10-6, B2-1 :B2-2
2R?ft-1 jR?*,-? B31-1 ;B31t2..
3132 835-1 B35-2 '
4BTPW3017BZ RRAS. TAP SCRFW (JBIT, M3 X17 S-7NCR Bl 1-1 IB11-2 Bll-3 :B11-* 4
5RWM30A0RSN FLAT L.WASHER Fl AT 1ARGF. 3M/H S-NI B29 B33 ;
6RWM30705SN FLAT L. WASHER FLAT LARGE. 3M/M S-NI 334-1 634-2 7
7RWM53C0RSR FLAT L. WASHER FLAT LARGE, 5M/H 5-BLACK R13-1 IB13-2 B13-3 Isn-* <
8RWT30607BN f,NO. WASHER 3M/ MBS-NI B2 51
9
|
M3977SF070 REAH PANEL 51
10 ("R972SL007 FRONT PANEL 21
1
11 MC371SZO02 BRACKET 15-1 ;l5-2 2
12 ML331SS001 TERMINAL 27 I
13 ML765SL"03 SH IFLO 25 1
14 MN776XA020 KNOR B-l 18-2 8-3 :8-4 5
15 8-5
16 MN386XA124 KNOB 91
17 MS976SL001 BOTTOM PLATE 71
18 MII752SL001 SIOF. PLATE 41
19 MU764AD001 HEAT SINK 1* )
20 HU765SL001 CHASSIS 31
21 1U897SX1?? COVER 51
22 MVL635GFOI SER.NO. PLATE 12 1
23 VRS32AWO01 LAMP HOUSF 18-1 IB-? 2
EXPLODED
ASSEMBLY MFCH. E1FIMENTS 4AR374ESCL2 STOCK NO. 1
REMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO QTY
USED
1VH165RX103 HOLOFR 19-1 19-2 2
2VM7BOERnoi FOOT 1T-1 17-2 17-3 17-4 4
3VN220SX"01 POW KNOR 11 1
4VN*6OSX0Ol KNOB 10-1 10-2 10-3 1P-4 .s
5VS727RR001 SHFFT 13-1 13-2 13-3 13-4
6VS32SVN001 BARP IER 29 1
7VS417NN003 CI AHPFR. 29 1
8VVL311GE60 LABEL 24 1
EXPLODED
ASSEMBLY PART NAM
FSrilTCHFON 1
EPART CODE
SSY AM410A**01
STOCK NO
REMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1ME97FAA1 05 FSnjTCHFON 1-A 1
2VK132SXOQ4. BUSH 1FVFR 1-B-l l-B-2 -2
3VK132SX007 RUSH 1-F-l l-E-2... .... 2
4VK133SX001 RUSH POWFR 1-C 1
5VK16 5SX004 METFR FRAME l-D-2 i
EXPLODED
ASSEMBLY PART NAME
PR TNT FO MATTERS
PART CODE
AAR37AFSCI 3
STOCK NO
t
BREMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO QTY USED
1KT4!nAF*-r:x OWNER" SMANUAL 1
2KWO011 73BX HAP 9AM TY CARD 1
3

EXPLODED
ASSEMBLY p. w. board as SY. APSAB005GD
IREMARKS PART CODE PART, STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1CCFR 121K0T CERAMIC CAP. 120PF 50V -10. +13t SL :i3 en 2
2rr.FB221K0T CERAMIC CAP. 770PF 50V -10. IS* SL Cl jr.7 ;
3r.r.GBioonoT CERAMIC CAP
•
SL 10PF 50V -0.5. <-0.5PF C25 C26 C29 C30 A
4r.r.r.B8 20<0T CERAMIC CAP. 82PF 50V -15. *llt SL C19 'C20 2
5f.EAB221ALX FLYT. CAPACITOR 720MFO 6.3V C51 ;C52 7
6CEADIOONLX ELYT. CAPACITOR C57 C58 2
7CFS0221ALX FLYT. CAPACITOR 220NF0 16V C67 :C68 7
8tFAE470ALX FLYT. CAPACITOR 47MF0 25V :62 1
9CEAF470ALX ELYT. CAPACITOR 47W0 35V C33 C34 2
10 CEAG101ALX ELYT. CAPACITOR 1OOMFD 50V :61 1
11 r.FOlllf.8201 FLYT. CAP :65 C66 2
12 r.EVCl OULX ELYT. CAPACITOR r.47 :c48 7
13 r.FVC470ALX FLYT. CAPACITOR ;ii c12 2
14 r.EVDIOOALX ELYT. CAPACITOR ;59 :C60 2
15 CEVE4P.7ALX FLYT. CAPACITOR :43 C44 C45 C46 4
16 C.FVGOIOALX FLYT. CAPACITOR cio :ci7 CIS C3 8
17 C31 ;C32 C4 C9
18 C.EVG1O0ALX ELYT. CAPACITOR :21 C22 2
19 T.FVG2R 7AL XELYT. CAPACITOR C63 1
20 CKDF 103PEM CERAMIC CAP. O.OIMFO 5D0V -0. *10D» FC64 I
21 CKFB2?37FT CERAMIC CAP. 0.O22MFO 50V -23, fC39 ;C40 C41 C42 4
22 CKFB4737FT CERAMIC CAP. 0.047HFO 50V -20. t80» FC71 !c72 ?
23 C.KGB5AIKBT CERAMIC CAP. 560FF 50V -13. »13t BC70 1
EXPLODED
ASSEMBLY PART NAM
P.U.BOA«0 AS
lPART CODE
APSAR005C0
STOCK NO.
JREMARKS PART CODE PART. STOCK NUMBER PART NAME SPECIFICATIONS SYMBOLIC OR EXPLODED VIEW NO. QTY
USED
1r.pMB122JEH MYI AR CAPACITOR 12O0PF 50V -5, 5* a—icB 2
2rQMR397.IFH MYI AR CAPACITOR 390QPF 50V -5. 5* C5 jCft 1
3C0MB473KTH MYI AR CAPACI TOR 0.047NF0 50V -ID 131 C55 :C56 ?
4I-OPB562KTH MYLAR TAPACITOR 56Q0PF 50V -10. 101 :53 ic54 J
5r.OMR5 63KTH MYI AR CAPACITOR 0.056MFD 50V -10. 131 C15 £16 !
e(-OMC563KEH MYI AR CAPACITOR C49 |C50 ?
71A31 F10?4A CHOKE COIL LI 12 2
8MW701BS001 TERMINAL 21
9MW401CX006 SHOT JAMPER 24
10 PSAB005COX PRINTFO W. BOARD 1
11 PS410A»*CX PRINTED W. BOARD I
12 OOG1N60XXT GFRMANTUM DIODE NO-RANK 321 022 023 24 4
13 onsr,P20RXG SIL ICON DIODE 333 ID34 035 P36 4
14 ODSN4A4SXZ SILICON niODE 1N4448 VRM=100V NO-RANK 313 :oi4 D15 bu 17
15 D17 DIB 019 ID20
IS PS5 026 029 j)30
17 037 |D5 D6 07
18 18
19 pnsRAl 2XXD Sll ICON DIODE RA1Z NO-RANK Pio 'on 012 ID9 4
20 OOZPD1 5FCA KENER, .DIODE RD15EIC! VZ-14. 7-16.5 C- RANK 031 :032 ?
21 0DZRO1B6CA ZENFR DIOOE RD18FC VZM8-20.3 C- 3AN< 328 1
23 OOM06551BN i.e. Jl 1
2:IOTA077 0XBN TRANSISTOR 2SA720 O.R -R.ANK qi3 501* ?