NAD 1700 User manual

SERVICE |
| NAO MANUAL
MONITOR SERIES
1700
PREAMPLIFIER/ TUNER —

NAD 1700 SERVICE MANUAL
NOTE: This manual covers all versions.
A: U.S.A.
A1: Canada
B: U.K.
B1: Australia
C: EUROPE and others
C1: W-Germany
Page Contents
3 Rear/Front View
4-6 Specifications
6 Safety Notice
7 Suggested Equipment Hookup
8-10 FM Alignment
11 AM Alignment
12 Preamp Adjustment
13-14 Wiring Diagram
15-16 Preamp PCB Layout
17-18 Preamp Schematic Diagram
19-20 Tuner PCB Layout
21-22 Tuner Schematic Diagram
23-28 Electrical Parts List
29-30 Exploded Parts List
31 Exploded View

REAR PANEL | CAUTION |
RISK OF ELECTRIC SHOCK
1. AC Line Cord. 9. Video Sound Input. DO NOT OPEN
2. AC Outlets (not in U.K. model). 10. CD Input. CAUTION: TO REDUCE
3. AM Antenna Terminals. 11. Tape 1 Input/Output. SHOCK DO NOT REMOVE
4. FM Antenna Input. 12. Tape 2 Input/Output. eee ee CABLE
5. AM Rod Antenna. 13. Output (Normal). Sea ee RIED
6. Phono Ground. 14. Output (High). SERVICE PERSONNEL
7. Phono Input. 15. EPL (External Processor) Input/Output.
8. MM/MC. 16. Infrasonic Filter On/Off.
==
im AM ANTENNA. J switcren
PHONO
:
TAPE
1
TAPE
2
OUTPUT
EPL
GROUND
ghhoNe
[VIDEO
CD
IN
OUT
IN
OUTNORMAL.HIGH
IN
OUT
|
J
swircrten
4
INFRA
©
wcnm
OFF
ON
I
swicueo
i
ii
qh
)
UNSWITCHED
J
6
7
8 $
10
11
12
3
14
15
16
1
2
FRONT
PANEL
1,
Power.
8.
Tone
Control
Bypass.
15.
Balance.
22.
AM/FM.
b
2.
Phones.
9.
Treble.
16. Volume.
23,
Mono.
3.
Phase
Invert.
10. Treble
Range.
17.
Tuning.
24.
Memory
Enter.
4.
EPL
(External
Processor
Loop).
11.
Tape
Copy.
18. Tuning
Display.
25.
Bank
Selector.
5.
Bass
EQ.
12.
Tape
Monitor
1 and
2. 19. Status
Indicators.
26.
Pre-sets.
6.
Bass
Range.
13.
Input
Selector.
20.
FM
NR Off.
7,
Bass.
14.
Low
Level.
21.
IF
Narrow.
1
26 25
24 23
22
21
20
19
18
17
el
_—
|
ASE
INVERT
NA
lonitor
Series
Preamp
Junet
170¢
:
TUNING
STEREO
Vv
A 5 3 4 BANK ENTER MQNO A IF NARROW GY. 1a
d 566666668 0|© © 6/0 0 Boone
FM NR OFF — =
PHONES VERT EPL ro m2. oa s' ey ee ul aie 2 TAPE, pHOND cD LEVEL pris perme
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—— —
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=

SPECIFICATIONS
Tuner
specifications
are
measured
in
accordance
with
ANSI-IEEE
Standard
185
(1975),
i.e.
IHF
T-200.
FM
sensitivity
is
measured
via
75-ohm
coaxial
input
and
expressed
in
nominally
equivalent
300-ohm
values.
All
measurements
taken
in
Normal
|.F.
mode
except
where
specified.
Preamp
specifications
are
measured
in
accordance
with
EIA
Standard
RS-490
(formerly
IHF
A-202)
and
are
referenced
to
the
NORMAL
output.
Signal
levels
are
6.dB
higher
at
the
HIGH
output;
divide
input
sensitivity
values
by
2.
PREAMPLIFIER SECTION
PHONO INPUT
Input
Impedance
(MM
or
MC)
R
=
47K
ohms,
C = 120 pF
Input
Sensitivity
MM
1.4mV
(1
kHz,
0.5V
out)
MC
100
uV
Input
Overload
at
MM
20/180/1500
mV
20H2/1kHz/30kHz
Mc
1.5/13/110
mV
Signal/Noise
ratio,
IHF
A—
MM
76
dB
re5mvV
weighted,
with
cartridge
connected
MC
76
dB
re
0.5
mV
THD
(20
Hz—
20
kHz)
and
IM
<0,04%
Distortion at + 30 dB level
RIAA
response
accuracy
+0.5
dB
LINE LEVEL INPUTS (CD, VIDEO, TAPE, EPL)
Input
Impedance
R
=
100KQ,
C
=
220pF
input
Sensitivity
80
mV
for
0.5
V
out
Maximum
Input
Signal
10V
Signal/Noise
ratio,
A-weighted
>
100
dB
re
0.5
V
out
>110dBre2V
Frequency
Response
20Hz
—
20kHz
+0.3
dB
OUTPUTS
Output
Impedance
.
Tape
or
EPL
1000
ohms
Normal 600 ohms
Phones & High 150 ohms (will drive all
headphone impedances)
Maximum
Output
Level
12
V
(all
outputs)
Tape
Output
Infrasonic
Filter
—3
dB
at
14
Hz,
12
dB/octave

CONTROLS
Treble
Bass
Bass Equalization
Infrasonic Filter (switchable)
TUNER SECTION
FM SECTION
Input Sensitivity
Mono, —30 dB THD +N
Mono, 50dB S/N |
Stereo, 50 dB S/N
FM NR on:
FM NR off:
Stereo, 60 dB S/N
FM NRon:
FM NR off:
Capture Ratio
AM rejection
Selectivity
(Normal |.F.)
Selectivity
(Narrow IF.)
Image rejection
R.F. intermodulation
l.F. rejection
SCA rejection:
Subcarrier suppression:
THD at 100% modulation
Signal-to-noise ratio,
IHF weighted
Frequency response
Stereo separation
(FM NR off)
dBf
10.3 dBf
13 dBf
25 dBf
35 dBf
35 dBf
45 dBf
Mono:
Stereo:
Mono:
Stereo:
+12 dB at 3, 6, or 12 kHz
+12 dB at 50, 120, or 250 Hz
+3 dB at 60 Hz
+6 dB at 36 Hz
—3 dB at 14Hz, 12 dB/octave
uV/750hms — uV/300 ohms
0.9 uV . 1.8uv
1.2uV 2.4uV
5uV 10 uV
15uV 30 uV
15 uV 32 uV
50 uV 100 uV
<1.5dBfrom 45 to 85 dBf
>65 dB at 45 and 85 dBf
75 dB alternate channel
7 dB adjacent channel
85 dB alternate channel
20 dB adjacent channel
>90 dB
>65 dB
_ >100dB
'>70 dB
>60 dB (19 + 38 kHz)
1kHz 100Hz—6kHz
0.08% 0.2%
0.08% 0.3% .
>82 dB
78 dB at 65 dBf,
80 dB at 85 dBf -
30 Hz— 15 kHz +0.5 dB
50 dB at 1 kHz By
40 dB from 30 Hz to 10 kHz

AM SECTION
Usable sensitivity
Selectivity
Image rejection
|.F. rejection
S/N ratio
THD
PHYSICAL SPECIFICATIONS
Width x Height x Depth
Net Weight
Shipping Weight
Power Requirement
300 uV/meter
35 dB
50 dB
50 dB
45 dB (30% mod., 50 mV input)
0.5%
43.5 x 12 x 29.3 cm
(17.1 x 4.75 x 11.5 in.)
6.6 kg (14.5 Ibs)
7.6 kg (16.7 Ibs)
50/60 Hz at 110, 120.
220 or 240 VAC 30 W
NOTE : NAD reserves the right to change specifications or designs at any
time without notice. All specifications are those in effect at the time of
printing.
SERVICE SAFETY PRECAUTIONS (UL)
1. Use exact replacement parts for critical locations, marked “A” on parts list.
2. Return lead dress to original position, and re-install protective covers.
3. Before returning to customer, test for shock hazard; use either method A or B:
A. Leakage test, “cold”:
1. Unplug AC cord, turn power switch ON.
2. Connect one lead of High Voltage Insulation Tester to both prongs of AC plug.
3. Touch other lead to all exposed metal parts.
4. Impedance measurement must be 0.3 - 5.0 Megohms.
B. Leakage test, “live”: ;
1. Plug unit directly into AC outlet; do not use isolation transformer.
2. Connect one lead of Leakage Current Tester to earth ground.
3. Touch other lead to all exposed metal parts.
4. Leakage measurement must be less than 0.5 milliamps.

SUGGESTED INSTRUMENTATION HOOKUP — FM ALIGNMENT
WITH BUILT~IN SWEEP
1E: ST 1000A
SEEECE
FREQ. COUNTER
(IF NOT USING
SYNTHESIZED
FM GENERATOR)
DUMMY
ANTENNA
750
DISTORTION METER
ee
DISTORTION
OUTPUT
INPUT
SCHEMATIC DIAGRAM OF DETECTOR PROBE
C1 02
330p Diodes should be point-contact
FROM OUT germanium; Some commonly
TUNER Ico | TOSCOPE available types are: OA80
OA81
AA119
1N60
1N34
1N22
PICTORIAL DIAGRAM OF DETECTOR PROBE
R1 CENTER LEAD
TO PIN1 TO SCOPE
{C103
Keep jeads as shortas possible, to
TO TUNER GND. \. SHIELD minimize stray signal pickup.
AT FRONTEND

FM ALIGNMENTS
NECESSARY INSTRUMENTATION
e Stereo Modulator (less than 0.05% THD, more than 50dB Sep.)
@ FM Generator (less than 0.05% THD)
e 75 ohm Dummy Antenna (if needed by generator)
® Audio Oscillator (not necessary if FM Generator has built-in sweep, e.g., SOUND TECHNOLOGY ST 1000A or
ST 1020A)
@ 2 AC VTVM's (or one with a Left/Right switch)
@ THD Analyzer (resolution less than 0.1%)
® Oscilloscope (5mV or better sensitivity, X-Y capability)
e Frequency Counter
e Detector Probe
IMPORTANT NOTES
1) RF levels are at antenna input.
2) Before alignments commence, switch off IF NARROW, FM NR and MONO; select FM.
3) If FM Generator is not synthesizer-type, be sure to check its frequency with Frequency Counter when
adjusting detector and multiplex decoder circuits.
4) Hum in measurements may be caused by ground loop via antenna cable; if so, use isolation balun, or isolate
cable shield and hot with small capacitors (470~ 1000pf).
To adjust front-end coils, bend gently with wooden or plastic tool (non-interactive).
—
5
—
A. FM LOCAL OSCILLATOR FREQUENCY
1. Connect Frequency Counter between TP-107 and Ground.
2. Tune to 90 MHz (No RF input needed).
3. Adjust C-278 so that reading is 100.700MHz +/— 2kHz.
B. FRONT-END ALIGNMENTS (should only be necessary after repair to front end).
TUNING VOLTAGE
1. Connect DMM between TP-101 and Ground.
2. Tune to 88.00MHz, and adjust L-6 if reading is not 3.2V +/— 0.5V.
3. Tune to 108.00MHz, and check that reading is 22.5V +/— 1.5V.
4, Repeat above steps 2 and 3 until within tolerance.
TRACKING
1. Connect FM Generator to 75 ohm antenna input (modulate +/— 150kHz sweep) and Detector Probe to
Pin 1 of IC-103 (ground to tunershield).
2. Adjust vertical sensitivity of Oscilloscope to maximum, and set to X-Y mode. (X input is sweep signal,
Y is detector probe).
3. Set tuner to 105MHz, enter into Preset 2, and adjust generator so that curve appears on Oscilloscope, and
covers approximately 1/2 of display.
4. Adjust C-2, C-10 and C-12 for maximum curve height, while reducing FM Generator output, if necessary,
to keep entire curve on display.
. Set tuner to 9OMHz, enter into Preset 1, and adjust Generator so that curve appears on Oscilloscope.
. Adjust L-2, L-4 and L-5 for maximum curve height.
7. Repeat above steps 3, 4, 5 and 6 (use Preset 1 and 2) until both curves are at maximum height.
Note: 105MHz curve is typically slightly higher than 90MHz.
a
—
b
=
Oo ol
Cc. IF ADJUSTMENTS
1. Set tuner to approximately 98MHz (must be an unoccupied frequency), and adjust FM Generator to
display curve on the Oscilloscope.
2. Adjust L-8 and L-101 for maximum and symmetrical curve using as little RF input as possible.

. DETECTOR ALIGNMENT
. Remove Detector Probe, and connect the Tape, Output to Distortion Analyzer and Oscilloscope.
. Connect DMM between TP-103 (—) and TP-104 (4).
. Tune to 98MHz and feed 1000uV from FM Generator (Modulate 1kHz 100%, Mono).
. Adjust L-102 Secondary for lowest THD. Specification: less than 0.12%.
. Adjust L-102 Primary for OV reading on DMM. Tolerance: +/— 50mV.
. Repeat above steps 4 & 5 until no further improvement.
aoahands —
. STEREO DISTORTION & SEPARATION
. Tune to 98MHz and feed 1000uV from FM Generator. Modulate 1kHz, 100% left (or right) only.
. Adjust L-101 and L-8 just slightly so that distortion on left (or right) channel becomes minimum.
. Check stereo distortion, wide IF: Specification: less than 0.1%, L + R, L only, R only, L — R.
. Next, select IF NARROW, and check distortion: Specification: less than 0.15%, L only, R only, L— R.
. Set IF to wide and modulate L only. Adjust R-375 for minimum output on right channel.
Next, modulate R only and adjust R-375 for minimum output on left channel.
lf necessary, readjust R-375 so that readings become same on both channels. Specification: more than 46cB.
6. Select IF NARROW, and modulate left (or right) channel only. Adjust R-376 for minimum output on right
(or left) channel VTVM and Oscilloscope.
If necessary, readjust R-376 so that readings become same on both channels. Specification: more than 40aB.
ah WKND =
. AUTO SEARCH LEVEL
1. Set IF to wide. Connect DMM between TP-105 and Ground:”
2. Set FM Generator output to 10uV and adjust R- o78 so cent reading just goes from OV to 40V.
Tolerance: +/— 2pV.
. STEREO SWITCHING LEVEL
1. Set FM Generator output to 5uV, 1kHz 100% L + R.
2. Adjust R-379 so that the stereo
light just turns on. Tolerance: + 2uV.
Note: The tuner will switch into mono at a lower level, ‘ypically 4uV.
. SIGNAL METER LEVEL
1. Tune to 98MHz and feed 100uV from FM Getic ator
2. Adjust R-380 so that fifth LED just lights.
PARTIAL MUTING
1. Set FM Generator output to 0.5uV, 1kHz 30% Mono modulation. Set R-381 full CCW.
2. If S/N above 702760; set FM NR on, tune away from, then back to, RF Generator frequency.
3. Adjust R-381 so that muting just turns off.
. FM NR CIRCUIT: MULTIPLEX FILTERS
1. Check that FM NR is off.
. Set FM Generator output to 2000uV, 1kHz 100% L + R, and set reference for S/N measurement. Cancel the
stereo modulation and leave pilot tone.
. Adjust FL 102 (FL 103) for minimum subcarrier output on left (right) channel; Specification: less than — 60dcB:
. Adjust FM Generator output so that S/N ratio reads 50cB.
. Switch FM NR on, and adjust R-148 so the S/N is improved by 8dB.
. Switch FM NR off, and adjust FM Generator output so that S/N ratio reads 60cB.
. Switch FM NR on, and check that S/N is improved by approx. 2dB.
N
SN Oof W

10

AM ALIGNMENTS
A. OSCILLATOR
1. Connect DMM between TP-102 and ground.
2. Tune to 1710kHz. Enter into preset 2. Adjust C-279 for reading of 31 + 0.5 VDC.
3. Tune to 520kHz. Enter into preset 1. Adjust L-105 for reading of 1.8 + 0.1 VDC.
4. Repeat above steps 2 and 3 until within tolerance.
B. ANTENNA, IF
1. Swing antenna away from chassis.
2. Connect DC voltmeter to centertap, R-382 and ground.
3. Tune to a station of moderate strength near 1400kHz. Enter into Preset 4. Adjust C-280 for maximum
reading on meter.
4. Adjust L-106 and L-107 for maximum reading on meter.
5. Tune to a station of moderate strength near 600kHz. Enter into Preset 3. Adjust L-901 for maximum reading
on meter (use non-interactive tool, such as plastic or wooden stick).
6. Repeat above steps 3 and 5 until no further improvement is seen.
C. SIGNAL METER LEVEL
1. Tune to 1,000kHz and feed 1000uV to antenna terminals.
2. Adjust R-382 so that fifth LED just lights up.
L901

PREAMPLIFIER ADJUSTMENTS
A. CHANNEL BALANCE
1. Feed 1kHz, 100mV to CD input; connect AC VTVM's to normal output.
2. Set volume to maximum, balance to center, low level off.
3. Adjust R-545 so that both channels have same output level + 0.25dB.

WIRING DIAGRAM
AM BAR ANTENNA
ANTENNA CONNECTOR
o a =
ALU Te
ROTARY SENSOR P.C.B (N004A)
‘Lew ay
Lut
13
BRN REO!
EE ee =)
1 5 AAR RT 7 AS RE PIERRE
1, Wy
te)
Oy
RECEPTACLE
Pip BEL
HEADPHONE
CONNECTOR
(HOO4A)
TOI
TO S116
TACTILE SWITCH P.C.B. (S095A)
EAU
a
TACTILE SWITCH P.C.B. (SO95A)
POWER TRANSFORMER
~~ BLU
POWER CORD
LED INDICATOR P.C.B. (M118A)
TO J102
DISPLAY P.C.B
(DO16A)
= FE
a fy
TO 3118
14
1700

PREAMPLIFIER P.C.B. LAYOUT DIAGRAM
PRE-AMP/POWER SUPPLY P.C.B. ASS’Y (025A)
a a ‘ ee
oO
a
o
2
©
a
cs)
(1) voo
15
HEADPHONE CONNECTOR
P.C.B. ASS’Y
(HO04A)
LED INDICATOR P.C.B. ASS’Y
(M118A)
POWER SWITCH
P.C.B. ASS’Y
(SO96A)

SCHEMATIC DIAGRAM
NAD 1700 PREAMPLIFIER SECTION
08
‘TO TUNER UNIT
07
5 4 73 0705 _] 2801616
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TUNER P.C.B. LAYOUT DIAGRAM
TUNER P.C.B. ASS’Y (10294) FM FRONT-END P.C.B. ASS’Y
(F017C)
ROTARY SENSOR
P.C.B. ASS’Y
(NOO4A)
92-2246-0-0
LED DISPLAY P.C.B. ASS’Y (p016a)
EU-type,
AM 9kHz step
T2r224B-Or0 9 rx-xana vo
38 30
reid 1C9147BP
19 20

SCHEMATIC DIAGRAM
NAD 1700 TUNER SECTION
AS36C120 0.22u,, C121 SOV-2.2u pi4e ae
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21
22

ELECTRICAL PARTS LIST
NOTE: This is not a complete electrical parts list.
1) FM FRONT-END ASSEMBLY: F017C (EXPLODED VIEW INDEX #51)
PARTS NO. SYMBOL NO. DESCRIPTION
72-2158-0 P.C. BOARD
2SC 461B Q3 TRANSISITOR
2SC 535B Q2, 4,5. TRANSISITOR
3SK 45B (or 3SK85) Q1 TRANSISITOR (MOS FET)
1SV53 F2 Di~4., DIODE (VARIABLE CAPACITANCE)
11-434 L1 ANTENNA COIL, PRIMARY
11-412 _ L2,4,5 ANTENNA COIL, SECONDARY
11-435 L3 RF COIL
15-152 L7 CHOKE COIL, VFC-15E
15-166 L9 CHOKE COIL, LF-7.5, 10H.
13-533 (or 13-535) L8 IFT COIL, FI-6
12-565 L6 OSCILLATOR COIL, E520HN
36-134 C2, 10, 12, 20. TRIMMER CAPACITOR, 3~11pF.
50V 2pF C28 CERAMIC DISC CAPACITOR, CK
50V 2pF C26 CERAMIC DISC CAPACITOR, SL
50V 3pF C25 CERAMIC DISC CAPACITOR, CJ
50V 5pF C14 CERAMIC DISC CAPACITOR, SL
5OV 8pF C21 CERAMIC DISC CAPACITOR, RH
50V 10pF C24 CERAMIC DISC CAPACITOR, SH
50V 15pF C22 CERAMIC DISC CAPACITOR, SH
50V 22pF C5, C16 CERAMIC DISC CAPACITOR, SL
50V 100pF c19g CERAMIC DISC CAPACITOR, RH
50V 120pF C3, 11, 13. CERAMIC DISC CAPACITOR, SL
50V 0.001 uF C1,6~9, 15, 23, 27. CERAMIC DISC CAPACITOR, B
50V 0.01 4F C4, 17, 18. CERAMIC DISC CAPACITOR, F
87-1101 1~5, 7,8. PIN TERMINAL, 1 x 14L
74-2167-0-14 CASE
74-2168-0-0 SHIELDING PLATE
74-2171-0-0 COVER
2) TUNER P.C.B. ASSEMBLY; 1029A (EXPLODED VIEW INDEX #47)
PARTS NO. SYMBOL NO.
72-2245-0
74HC164 1C116
TC4001BP IC104
TC4011BP 1107, 108.
TC9147BP 1C114
TD6104P 1C115
TC9130 1C118
LA1235 iC103
LA1247 (ORLA1245) 1C109
LA1222 1C101, 102.
LA3401 1C111
LB1450 IC106
BA6104 1C105
pPC4558 iC110, 119.
PC4570C 1C112, 113.
23
DESCRIPTION
P.C. BOARD
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
PARTS NO.
wPD7507
78MO5FA
78M12FA
79M12FA
2SA1015
28C1815
2SC930E
2SK 30
2SK246
KV1226V
GZS36R (or GZA36X)
GZS7.5Y
SR-1M-2
DBA10B
18S176
1$S178 (or SR-1M-2)
18S$241
1S188FM
CSB456F 11
19-205
BFU450C
SFZ450F
SFE10.7MLK
SFE10.7MZ2
14-310
15-167
12-564
13-347
13-348
13-533
13-536-1
19-146
19-158
36-133
36-134
36-136
41-787
41-788
41-789
41-791
41-792
41-796
5.5V 0.047F
50V 5pF
50V 82pF
SYMBOL NO.
1C117
1C120
1C121
IC122
Q106, 108, 109, 119, 123, 125, 138, 139,
141~146.
Q103~105, 107, 110~112, 114~116,
120~122, 124, 126~137, 140, 147.
Q101, 102
Q113
Q117, 118.
D117, 118.
D173
D172
D169
D174, 175.
D167, 168, 170, 171.
D101~104.
D113~116.
CR101
XTAL101
CF107
CF106
CF101~103.
CF104, 105.
L103
L104
L105
L107
L106
L101
L102
FL101
FL102, 103
C280
C279
C278
R377 (FM NR)
R379 (STEREO LEVEL)
R375 (IF WIDE), R378 (SEARCH),
R380 (FM METER)
R382 (AM METER)
R376 (IF NARROW)
R381 (MUTE)
C2085, 231.
C123
C116
24
- INTEGRATED CIRCUIT ©
DESCRIPTION.
INTEGRATED CIRCUIT, 5V 0.5A.
INTEGRATED CIRCUIT, 12V 0.5A.
INTEGRATED CIRCUIT, —12V 0.5A.
TRANSISTOR
TRANSISTOR —
TRANSISTOR
F.E.T.
F.E.T.
DIODE (VARIABLE CAPACITANCE)
ZENER DIODE
ZENER DIODE
SILICON DIODE, 100V 1A.
SILICON DIODE, 100V 1A.
SILICON DIODE, 100V 1A.
SILICON DIODE, 100V 1A.
SILICON DIODE, 100V 1A.
GERMANIUM DIODE
CERAMIC OSCILLATOR
CRYSTAL OSCILLATOR, 7.2MHz
CERAMIC FILTER
CERAMIC FILTER
CERAMIC FILTER
CERAMIC FILTER
INDUCTOR COIL, 5.6mH
INDUCTOR COIL, 120uH
OSCILLATOR COIL
IFT COIL
IFT COIL
IFT COIL
IFT COIL
ANTI-BIRDIE FILTER
MPX FILTER
TRIMMER CAPACITOR, 2~7pF
TRIMMER CAPACITOR, 3~11pF
TRIMMER CAPACITOR, 5.2~30pF
VARIABLE RESISTOR, 5K ohm
VARIABLE RESISTOR, 10K ohm
VARIABLE RESISTOR, 20K ohm
VARIABLE RESISTOR, 50K ohm
VARIABLE RESISTOR, 100K ohm
VARIABLE RESISTOR, 1M ohm
MEMORY BACK-UP CAPACITOR
CERAMIC DISC CAPACITOR, CH
CERAMIC DISC CAPACIOR, FK11 COGIH

PARTS NO.
5OV 31.5pF
BOV 0.1uF
50V 0.224F
50V 0.33 uF
5OV 0.47 uF
5OV 0.22uF
5OV 0.33 uF
OV 0.47 4F
5OV 1)F
25V 4.7 uF
16V 2200uF
6.3V 15uF
A1/4W 68 ohm
A250V 600mMA
A250V 630mMA
71-1246
87-1101
87-129
87-158
52011-0410
B2B-XH-A
B3B-XH-A
B4B-XH-A
B5B-XH-A
B6B-XH-A
B7B-XH-A
B8B-XH-A
B10B-XH-A
B11B-XH-A
87-6075
87-6128
87-6129
74-3111-0
74-3112-0
SYMBOL NO.
C230
C126, 171, 185, 195, 220, 222, 254~256.
C120, 133.
C124, 204.
C127
C226, 246.
C223
C145
C117, 146, 257.
C277
C264
C169
R370
FU101
FU101
J119
J111, 113, 115, 117, 118.
J105, 108, 116.
J102, 112.
J104, 114.
J101
J107, 110.
J106
J109
J103
DESCRIPTION
CERAMIC DISC CAPACITOR, CK
FILM CAPACITOR, ECQV1H
FILM CAPACITOR, ECOV1H
FILM CAPACITOR, ECOV1H
FILM CAPACITOR, ECOV1H
ELECTROLYTIC CAPACITOR, MS
ELECTROLYTIC CAPACITOR, MS
ELECTROLYTIC CAPACITOR, MS
ELECTROLYTIC CAPACITOR, MS
ELECTROLYTIC CAPACITOR, MS
ELECTROLYTIC CAPACITOR, MS
ELECTROLYTIC CAPACITOR, MS
FUSIBLE RESISTOR
FUSE, 5TT (A, A1)
FUSE, 5ST (B & C)
FUSE HOLDER, 59
PIN TERMINAL, 1 x 14L
WRAPPING TERMINAL, KSB-4L-50
WRAPPING TERMINAL, KSB-5L-75
CONNECTOR, 4P
CONNECTOR BASE POST, 2P
CONNECTOR BASE POST, 3P
CONNECTOR BASE POST, 4P
CONNECTOR BASE POST, 5P
CONNECTOR BASE POST, 6P
CONNECTOR BASE POST, 7P
CONNECTOR BASE POST, 8P
CONNECTOR BASE POST, 10P
CONNECTOR BASE POST, 11P
JUMPER CABLE, 2-CONDUCTORS, L=190
JUMPER CABLE, 2-CONDUCTORS, L=65
JUMPER CABLE, 4-CONDUCTORS, L=90
HEAT SINK
HEAT SINK
3} ROTARY SENSOR ASSEMBLY; NO04A (EXPLODED VIEW INDEX #50)
PARTS NO.
SYMBOL NO.
72-2246-0
TLP801A
87-6103-0
Pt101, 102.
J120
DESCRIPTION
P.C. BOARD
PHOTO INTERRUPTOR
JUMPER CABLE, 4-CONDUCTORS, L = 260
4) LED DISPLAY ASSEMBLY; D016A (EXPLODED VIEW INDEX #49)
PARTS NO.
72-2247-0
TD6301AP
SBX1483
2SA1015
2SC1815
2SC2500
SYMBOL NO.
1C425
IC426
0428
Q425, 427.
Q426
25
DESCRIPTION
P.C. BOARD
INTEGRATED CIRCUIT
INTEGRATED CIRCUIT
TRANSISTOR
TRANSISTOR
TRANSISTOR
PARTS NO.
1SS$176
SL-5653
TLO280
84-3270-0
84-3271-0
84-3273-0
84-3275-0
84-3277-0
84-3278-0
84-3279-0
SYMBOL NO.
D425, 426.
LED425
D427, 428, 429.
J406
J405
J407
J402
J404
J403
J401
DESCRIPTION
DIODE
LED INDICATOR
LED (ORANGE)
CONNECTOR W/LEAD, 6P
CONNECTOR W/LEAD, 5P
CONNECTOR W/LEAD, 4P
CONNECTOR W/LEAD, 3P
CONNECTOR W/LEAD, 2P (BROWN/RED)
CONNECTOR W/LEAD, 2P
(ORANGE/YELLOW)
CONNECTOR WILEAD, 2P (GREEN/BLUE)
5) TACTILE SWITCH ASSEMBLY; S095A (EXPLODED VIEW INDEX #48)
PARTS NO. SYMBOL NO. DESCRIPTION
72-2248-0 P.C. BOARD
72-2250-0 P.C. BOARD
2SC1815 0429~435 TRANSISTOR
TLOG208 D430~437 L.E.D. (ORANGE/GREEN)
TLO208 D442, 443 L.E.D. (ORANGE)
TLG208 D439~441 L.E.D. (GREEN)
TLR208 D438 L.E.D. (RED)
81-2345 S425~438 TACTILE SWITCH
84-3269-0 J408 CONNECTOR W/LEAD, 11P
84-3272-0 Jai CONNECTOR W/LEAD, 5P
84-3274-0 J409 CONNECTOR W/LEAD, 4P
84-3276-0 J410 CONNECTOR W/LEAD, 3P
84-3280-0 J413 CONNECTOR W/LEAD, 2P (GREY/PURPLE)
84-3281-0 J412 CONNECTOR W/LEAD, 2P (WHITE/BLACK)
6) LED INDICATOR ASSEMBLY; M118A (EXPLODED VIEW INDEX #44)
PARTS NO.
72-2244-0
TLG208
TLO208
84-3282
SYMBOL NO. DESCRIPTION
P.C. BOARD
D902~906. L.E.D.
D901 L.E.D.
1~7 CONNECTOR W/LEAD, L=470
7) PRE-AMPLIFIER/POWER SUPPLY P.C.B. ASSEMBLY; J025A (EXPLODED VIEW INDEX #43)
PARTS NO.
72-2241-0-1
2SA1358
2SA1015
2SA990
2SB1116
28C1815
SYMBOL NO.
Q802
Q703, 753, 804, 807, 809, 811, 815, 817.
Q503, 504, 553, 554.
Q706, 756, 812.
Q701, 702, 704, 751, 752, 754, 803, 805,
806, 808, 810, 813, 814, 816, 818.
26
DESCRIPTION
P.C. BOARD
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR

PARTS NO. SYMBOL NO. DESCRIPTION
2SC2878 0601, 651. TRANSISTOR
2$C3329 Q501, 502, 551, 552. TRANSISTOR
28C3421 0801 TRANSISTOR
2SD1616 Q705, 755. TRANSISTOR
2SK363 Q505, 506, 555, 556. TRANSISTOR
NJM2043 1C504, 505. INTEGRATED CIRCUIT
NJM2068 iC503, 603. INTEGRATED CIRCUIT
NJM78M05 IC801 INTEGRATED CIRCUIT
uPC4574 1C601, 602. INTEGRATED CIRCUIT
yPD6360 IC604 INTEGRATED CIRCUIT
uPD6362 1C501, 502. INTEGRATED CIRCUIT
LB1642 1C802 INTEGRATED CIRCUIT
1S$S$108 D805 DIODE
1N4002 D809 DIODE
RS203 D801 DIODE
DB103 D810 DIODE
181588 D501~507, 551~557, 701, 702, 751, DIODE
752, 803, 804, 806~808, 811~827.
GZA22Y D802 DIODE
15-168 L501, 551. CHOKE COIL, 3.74H
100V 0.1 uF C810 FILM CAPACITOR, UMS
125V 4700pF C815 CERAMIC DISC CAPACITOR, ECK-DNS472
6.3V 1000uF C505, 555. ELECTROLYTIC CAPACITOR
16V 1000uF C704, 754, ELECTROLYTIC CAPACITOR
35V 2200uF C801, 802. ELECTROLYTIC CAPACITOR
5OV 0.1 uF C816, 828~831, 835, 838~840. SEMI-CONDUCTIVE CERAMIC
41-136 R641 (BALANCE) ROTARY VOLUME CONTROL, 20KW
41-694 R630, 631. (BASS,TREBLE) ROTARY VOLUME CONTROL, 20KB x2
41-8001 R546 (VOLUME) MOTORED VOLUME CONTROL,
3% EUW-MWEF325B24
41-7110 R545 (CHANNEL BALANCE) VARIABLE RESISTOR, 1K OHM
1W 150 ohm: R712, 762. OXIDE METAL FILM RESISTOR, RS1FSM
7.5K ohm R512, 562, METAL FILM RESISTOR, RNK2E
95.3K ohm R511, 561. METAL FILM RESISTOR, RNK2E
A100hm R801, 802. FUSIBLE RESISTOR, ERD2FC-P
A1/4W 207M R858 UL-RESISTOR
81-2351 $601 (BYPASS) PUSH SWITCH
81-2352 $502 PUSH SWITCH BANK (3 SWITCHES)
81-2353 $801 PUSH SWITCH BANK (6 SWITCHES)
81-317 $602, 603.(FREQUENCY TURNOVER) — LEVER SWITCH, SLLR54
81-447 $501, 503. (MM/MC, INFRA ON/OFF) SLIDE SWITCH, SSP322
81-318 $504 (COPY) LEVER SWITCH, SLLRWO
81-455 $505 © SLIDE SWITCH, SSSR24
81-508 FLEXIBLE SWITCH JUNCTURE, SWWR20.
A 81-625 _ RY801 RELAY . .. -
82-2130 J501 (PHONO) RCA PIN-JACK, 2P
82-2157 J504, 505. (EPL, OUTPUT) RCA PIN-JACK, 4P
82-2159 J502, 503.(CD, VIDEO, TAPE 1, TAPE 2) RCA PIN-JACK, 6P
A 250V 200mA. FU801 FUSE, 5TT200 (A, A1)
A. 250V T100mA. FU801 FUSE, 5ST100 (B & C)
71-1246 FUSE HOLDER, 5¢
84-3258 . CONNECTOR W/LEAD, L=350, RED/BLACK
84-3259 CONNECTOR WI/LEAD, L=350,
27
ORANGE/BLACK.
PARTS NO. SYMBOL NO.
DESCRIPTION
84-3260 J508
84-3261 J802
84-3262 J801
84-3263 J507
87-6017
87-6077
87-6079
87-6089
87-6104
87-6113
87-6127
87-155
87-178
87-179
74-3105-0
CONNECTOR W/LEAD, L=180, WHITE
CONNECTOR W/LEAD, L=400, 7-COLORED
CONNECTOR W/LEAD, L=180, 8-COLORED
CONNECTOR W/LEAD, L=240 & 280,
10-COLORED
JUMPER CABLE, 3-CONDUCTORS, L=120
JUMPER CABLE, 3-CONDUCTORS, L=100
JUMPER CABLE, 3-CONDUCTORS, L=140
JUMPER CABLE, 7-CONDUCTORS, L=260
JUMPER CABLE, 2-CONDUCTORS, L=275
JUMPER CABLE, 3-CONDUCTORS, L=340
JUMPER CABLE, 3-CONDUCTORS, L=270
PIN TERMINAL, KSB-2L 75
PIN TERMINAL, KSB-2L 100
PIN TERMINAL, KSB-3L 100
HEAT SINK
8) HEADPHONE CONNECTOR ASSEMBLY; H004A (EXPLODED VIEW INDEX #45)
PARTS NO. SYMBOL NO. DESCRIPTION
72-2242-0 P.C. BOARD
82-2199-0 J901 HEADPHONE JACK , HLJ-4308-01-3010
9) POWER SWITCH ASSEMBLY; SO96A (EXPLODED VIEW INDEX #46)
PARTS NO. SYMBOL NO. DESCRIPTION
72-2243-0 P.C. BOARD
81-2350-0 $901 PUSH SWITCH
10) CHASSIS-MOUNTED COMPONENTS
PARTS NO. SYMBOL NO. DESCRIPTION
87-293-0 TUNING SHAFT, 439 25L
71-1912-0 ROTARY DISC (INTERRUPTOR FOR SENSOR)
11-5121-0 AM BAR ANTENNA W/HOLDER, L=220uH
82-2171-0 ANTENNA TERMINAL, PT-SO2F06
*82-2191-0 F-TYPE ANTENNA CONNECTOR, P2133
(A, A1)
*82-119-0 ANTENNA CONNECTOR, P-2132-A (B & C)
A, AC-T03FB03 J904 AC OUTLET (A, A1)
4, AC-T01FB54 J903 AC OUTLET (A, A1)
L\ 85-267 AC POWER CORD, 2.1M, POLARIZED. (A, A1)
A 62-3332-0 BUSHING FOR AC POWER CORD, 4N-4
AS
23-1336-0
POWER
TRANSFORMER
(A)
A SM126A1 THERMAL FUSE (BUILT IN 23-1336-0)
A 23-1335-0 STAND-BY TRANSFORMER
87-3260-0 HEXAGON STUD, L=33
87-3242-0 GROUND TERMINAL
A 63-1843-0
28
FUSE RATING LABEL (A, A1)