Aiwa V-770 User manual

©
1
A
|
WA
S/H
Code
No.
87-042
DATE
OF
ISSUE
7/1987-1
SERVICE
MANUAL
MODEL NO. V-770
BSTEREO CASSETTE RECEIVER
BSTEREO TURNTABLE SYSTEM
MSPEAKER SYSTEM
TYPE. HB, UB, CB, GB, KB
Mover no. OP—/ /Q
BSTEREO CASSETTE RECEIVER
BSTEREO TURNTABLE SYSTEM
BIYPE.HB, EB, ZB
MODEL NO. HF — { 50
BSTEREO CASSETTE RECEIVER
MSPEAKER SYSTEM
(CASSETTE RECEIVER CX-S770)
KALA ue
aye
gTYPE. HB
- ES TS © A A LS eS Ss aT TT
[ casseiver | cx-s77o_ [Te | | | | Jele |
cp-770 |__TURNTABLE | px-se770 ||@| | | | |
}@ |e!
eet oo ete
EE Es CRS RL a TT EEE SEES TE TEE TED SSAA OIE OEY SLRS RR SPE certs
re-ro [nares ne=rrm epg PP
H
F-760 || ReMoTE—coN| Rc-T770F || @ | | | | [| f[
[| speaker | _sx-s7so_ Te { | | | [| Jf |
A IWA Co.-~. 1. az Tokyo Japan os, ,
Printed i) Sapan

SPECIFICATIONS
CX-770
< Common >
Power requirements CX-770H, U, ©
120 V/220 Vizsu V
switchable 50/60 Hz
CX-770E, Z
220 V 50/60 Hz
CX-770K, G
240 V 50/60 Hz
Power consumption CX-770E, K,G,Z 275 W
(System total 285 W)
CX-770H 70 W
(System total 78 W)
CX-770U, CG 110 W
(System total 120 W)
Dimensions 330(W) x 316.5(H) x 340(D) mm
Weight 9.5 kg
< Amplitier section >
Power output CX-770E, G, K, Z
35 W+35 W (8 ohms, T.H.D.
1%, 1 kHz)
CX-770H
50 W+50 W (8 ohms, EIAJ)
< FTC Rule U model only >
35 Watts per channel, Min.
RMS at 8 ohms, from 40 Hz—
20 kHz, with no more than 1%
Total Harmonic Distortion.
Power bandwidth (IHF) 20 Hz—50 kHz
Signal-to-noise ratio 88 dB
Output terminals
SPEAKERS 8--16 ohms
_ HEADPHONES 8 ohms
in, t terminal
(Sensitivity..~ ~edance)
AUX 200 mV/47 kohms
< FM section >
Frequency range FM: 87.5 MHz to 108 MHz
Usable sensitivity (IHF)3.1 nV (300 ohms) 15.2 dBf
Alternate channel
selectivity 52 dB (+400 kHz)
Signal-to-noise ratio 77 dB (MONO)
Image response ratio 45 dB
Frequency response 30 Hz to 15 kHz
(+0.5, -3 dB)
Stereo separation 35 dB at 1 kHz
Antenna 75 ohms (unbalanced)
300 ohms (balanced)
(except Z model)
<AM section >
Frequency range AM: 530 kHz to 1,605 kHz
AM sensitivity CX-770H, U, C, G
300 »V/im
CX-770E, K, Z
400 p»V/m
Selectivity 25 dB (9 kHz)
Signal-to-noise ratio 50 dB (100 d8 input)
Antenna Loop antenna
< LW section> (E, K, Z model only)
Frequency range LW: 150 KHz to 285 kHz
Sensitivity 800 2V/im
Antenna Loop antenna
< Deck section >
Track format 4 tracks, 2 channels
Frequency response METAL tape: 30—16.000 Hz
CrOQ,2 tape: 30—15,000 Hz
NORMAL tape: 30—14,000 Hz
Signa!-to-noise ratio 60 dB (METAL tape
DOLBY NR ON)
Wow and flutter According to DIN 45 500 0.2%
0.09% (WRMS)
Tape speed 4.8 cmisec. (1-7/8 ips)., 13
9.5 cm/sec. (Double speed)
Rewind time 110 sec. (C-60)
Fast forward time 110 sec. (C-60)
Recording system AC bias
Erase system AC erase
Motor DC Servomotor x 2
Heads Playback head x 1 (Deck 1)
Record/playback head x 1
(Deck 2)
Erase head x 1 (Deck 2)
PX-E770
Drive system Belt drive systern
Speeds 33-1/3 and 45 rpm
Wow & flutter 0.2% (WRMS)
SIN ratio 50 dB (DIN-B)
Cartridge type VM type
Frequency
response 20—20,000 Hz
Dimensions 330(W) x 98(H) x 350(D)mm
Weight 2.5 kg
SX-770
Cabinet type: Bass reflex
Speaker: 220 mm cone type woofer
50 mm cone type tweeter
Frequency
response: 45 to 18,000 Hz
Impedance: 8 ohms
Output sound
pressure level: 90 dB/Wim
Music power: 50 W
Dimensions: 280(W) x 461(H) x 180(D) mm
Weight: 4.0 kg
@ Design and specifications are subject to change without
notice.
@ Noise reduction system manufactured under license from
Dolby Laboratories Licensing Corporation.
® Dolby and the 00 symbol are trademarks of Dolby Labo-
ratories Licensing Corporation.

MODEL NO.
CxX-S 770
DISASSEMBLY INSTRUCTIONS
1. Removing Cassette
Door Spring
1) Remove the spring from the recess of the chassis as
Front
cabinet
shown
in
the
figure.
Reinstall
the
spring
through
the
Mechanism 1 ,. recess of the chassis. (See Figure-1)
Mechanism 2
Hook portion @®to the cassette
door when installing. Gusaette-door eprine
ELECTRICAL MAIN PARTS LIST (CX-S770E, K, Z, SYSTEM 305)
REF.NO. PART NO. ORDER DESCRIPTION REF.NO. PART NO. ORDER DESCRIPTION
em
hy
(pe
87-026-286-019
S
TRANSISTOR
,DTA143ES
87-026-219-019 § TRANSISTOR ,OTAI44ES
87-001-153-019 S_ 1C,BA6154
87-020-981-010
J
1C,CXA=1102
87-026-215-019
S
TRANSISTOR
,DTC114YS
87-020-858-019
S
1C,LA1177
87-026-218-019
S
TRANSISTOR
,OTC144ES
87-020-566-019
S
{C,LA1265
89-106-842-019
$
TRANSISTOR,
2SA684P
89-109-521-019 S$ TRANSISTOR, 2SA 952K
87--020-271-019 S 1C,LA3600
87-020-978-019
S
1C,LA7224
89-110-155-019
S
TRANSISTOR,2SA1015GR
81-794-610-019
§
1C,LC6543H-3333
89-309-456-019
S
TRANSISTOR,
2SC945P
87-020-859-019
§
1C,LC7217
89-313-846-019
S$
TRANSISTOR,2SC1384R
89-318-154-019 S$ TRANSISTOR,2SC1815Y
87-020-555-019 $ 1C,M4584BP
87-020-680-019
S
1C,NJM2068S
89-319-233-019
S$
TRANSISTOR,2SC1923(0)
87-020-758-019
S$
1C,NJM2068SD
(CX-$770,2)
87-020-908-019
S
1C,NJU406680
89-320-011-019
§
TRANSISTOR,2SC2001K
B 89-412-753-019 S$ TRANSISTOR, 2SD1275
7-020-974-018
G
1C,NJU4066BD
89-417-613-019
S
TRANSISTOR,2S01761F
87-020-982-019 S 1C,STK4162MK-2
87-027-867-019
SIC,
TA7343P
89-406-555-019
S$
TRANSISTOR,
2SD655E
pone SIC, TC40518P === MAIN CIRCUIT BOARD SECTION 222
87-020-973-018
G
1C,TC40518P
PCB-A
*
S$
MAIN
CIRCUIT
BOARD
87-027-827-019
S$
1C,TC4069UBP
87-033-147-019
§
FUSE
CLAMP
7-020-975-018
G
1C,TC4069UBP
87-033-193-010
J
ANT,TERMINAL
ASSY
E
87-020-943-010
J
1C,1C9176P
(CX-S770E
SYSTEM
305)
87-027-787-019
S
1C,UPC1237H
87-033-194-010
J
ANT,TERMINAL
ASSY
K
87-020-989-010
J
1C,UPD7528ACU-204
(CX-S770,K)
87-049-560-019 S$ CONNECTOR,FTZ(CX-$770,Z)
">
TRANSISTOR
222
BPF101
87-030-134-010
J
BPF(CX-S770,Z)
89-501-615-019
S§
FET,2SK161GR
C101
*87-010-544-019
S$
CAP,ELECT
0.1-50V
89-502-415-019
§
FET,2SK241GR
C102
*87-018-017-019
$
CAP,CERA-SOL
§
24PF
J
S0v
SL
89-502-465-019
§
FET,2SK246GR
C103
*87-014-049-019
$
CAP,PP
470P
89-502-464-019
S
FET,
2SK246Y
C104
*87-010-401-019
§
CAP,ELECT
1-SOV
89-S03-735-019
§
FET,2SK373GR
C105
*87-018-047-019
S
CAP,CERA-SOL
0.01UF
16V
Y
87-026-214-019
S$
TRANSISTOR
,DTA114YS
C106
%*87-018-047-019
§
CAP,CERA-SOL
0.01UF
16V
Y
C107 *87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y

REF.NO. PART NO. ORDER ODESCRIPTICN REF.NO. PART NO. ORDER DESCRIPTION
C108
%*87-010-402-019
S
CAP,ELECT
2.2-50V(CX-S770,Z)
C340
%*87-010-544-019
§
CAP,ELECT
0.1-50V
C109.
#87-010-382-019
S
CAP,ELECT
22-25V
SME
C341
-*87-010-400-019
S
CAP,ELECT
0.47-50V
C110
=.
#87-018-038-019
S
CAP,CERA-SOL
K
330PF
50V
8
C342.
-*87-010-101-019
S
CAP,ELECT
220-16V
C111
#87-018-047-019
S
CAP,CERA-SOL
O.O1UF
16V
Y
C344
=
*87-018-047-019
S
CAP,CERA-SOL
O.O1UF
16V
Y
(CX-S770,Z)
C112: #87-010-378-019 S CAP,ELECT 10-16V
C113. -*87-010-404-019 S CAP,ELECT 4.7-SOV SME C345 %*87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y
C114. -#87-010-544-019 S CAP,ELECT 0.1-50V (CX-S770,Z)
C115 *87-010-403-019 S CAP,ELECT 3.3-50V SME C346 %*87-018-047-019 S CAP,CERA-SOL O.O1UF 16V Y
(CX-$770,Z)
C116 —-*87-010-404-019 S CAP,ELECT 4.7-50V SME
C117
~—-*87-018-047-019
S
CAP,CERA-SOL
0.01UF
16V
Y
C351
-*87-010-401-019
S
CAP,ELECT
1-50V
C118 -*87-018-017-019 S CAP,CERA-SOL $ 24PF J 50V SL C352. *87-010-401-019 S CAP,ELECT 1-50V
C119 -*87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y C353. %*87-018-040-019 S CAP,CERA-SOL K 470PF 50V 8
C120 -*87-010-402-019 S$ CAP,ELECT 2.2-50V C354 *87-018-040-019 S CAP,CERA-SOL K 470PF SOV B
C121 -*87-010-402-019 S$ CAP,ELECT 2.2-50V C355 -*87-018-040-019 S CAP,CERA-SOL K 470PF 50V 8
C122 *87-010-403-019 S CAP,ELECT 3.3-50V SME C356 %*87-018-040-019 S CAP,CERA-SOL K 470PF 50V B
C123. -*87-010-401-019 S CAP,ELECT 1-50V C357 =-*87-010-402-019 § CAP,ELECT 2.2-50V
C124 *87-018-044-019 S CAP,CERA-SOL 1000PF 50V B C358 %*87-010-402-019 S CAP,ELECT 2.2-50V
C125 -*#87-010-378-019 S CAP,ELECT 10-16V C359 = *87-010-256-019 S CAP,ELECT 0.68-S0V
C126 = *87-010-252-019 S CAP,ELECT 1000-6.3 C360 %*87-010-256-019 S CAP,ELECT 0.68-50V
C127 = *#87-010-402-019 S$ CAP,ELECT 2.2-50V C361 *97-010-402-019 S CAP,ELECT 2.2-SOV
C128 *87-010-402-019 S CAP,ELECT 2.2-50V C362. »*87-010-402-019 S CAP,ELECT 2,2-50V
C131 = #87-010-402-019 S$ CAP,ELECT 2.2-50V C363. »*87-010-402-019 S CAP,ELECT 2.2-S0V
C132 = *87-010-402-019 S CPA,ELECT 2.2-50V C364. = *87-010-402-019 S CAP,ELECT 2.2-50V
C133. #87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y C365 %*87-010-382-019 S CAP,ELECT 22-25v SME
C134 = *87-010-378-019 S CAP,ELECT 10-16V C366 %*87-010-380-019 S CAP,ELECT 47-16V
C137 = *87-018-044-019 S CAP,CERA-SOL 1000PF 50V B C367 ¥*87-010-263-019 S CAP,ELECT 100-10V
C138 = *87-010-402-019 S$ CAP,ELECT 2.2-50V(CX-S770,Z) C368 %*87-010-404-019 S CAP,ELECT 4.7-50V SME
C139 = #87-018-007-019 S$ CAP,CERA-SOL 6,8P K 50V SL C370 %*87-018-005-019 S CAP,CERA-SOL CYL 4.7P
C140 = #87-018-047-019 S$ CAP,CERA-SOL 0.01UF 16V Y C372. *87-010-374-019 S CAP,ELECT 47-10V
C141 = 487-010-401-019 S CAP,ELECT 1-50V C373 *87-010-400-019 S CAP,ELECT 0.47-50V
C142 = *87-018-047-019 S CAP,CERA-SOL O.O1UF 16V Y C374 = *87-010-382-019 S CAP,ELECT 22-25V SME
C143. -*87-010-401-019 S CPA,ELECT 1-50V C375 -*87-010-378-019 S CAP,ELECT 10-16V
C144
—-*87-018-034-019
S
CAP,CERA-SOL
150P
C381
%*87-018-047-019
S
CAP,CERA-SOL
0.01UF
16V
Y
C146 = *87-018-028-019 S CAP,CERA-SOL 68P (CX-S770,Z)
C149 -*87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y C382 »*87-018-047-019 S CAP,CERA-SOL O.O1UF 16V Y
C164 *87-010-248-019 S CAP,ELECT 220-10V (CX-S770,Z)
C170 ~=—-*87-014-050-019 S CAP,PP 510PF C383 *87-018-047-019 S CAP,CERA-SOL O.01UF 16V Y
C171 —-*87-010-378-019 S CAP,ELECT 10-16V (CX-S770,Z)
C192 -*87-018-047-019 S CAP,CERA-SOL 0.Q1UF 16V Y C501 -*87-010-401-019 S CAP,ELECT 1-50V
C193 -*87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y C502. =-*87-010-401-019 S CAP,ELECT 1-50V
C194 = *87-018-047-019 S CAP,CERA~SOL 0.01UF 16V Y C503 *87-010-404-019 S CAP,ELECT 4.7-S0V SME
C301 *87-018-038-019 S CAP,CERA-SOL K 330PF 50V B C504 %*87-010-404-019 S CAP,ELECT 4.7-50V SME
C302 = *87-018~-038-019 S CAP,CERA-SOL K 330PF SOV 8 C505 %*87-010-380-019 S CAP,ELECT 47-16V
C303 *87-018-024-019 S CAP,CERA-~SOL 47P 50V SL C506 %*87-010-380-019 S CAP,ELECT 47-16V
C304 *87-018-024-019 S CAP,CERA-SOL 47P 50V SL CSO7 %*87-010-404-019 S CAP,ELECT 4.7-50V SME
C309 =. #8 7-010-132-0019 S CAP,ELECT BP 1-S0V C508 %*87-010-404-019 S CAP,ELECT 4.7-SOV SME
C310 = *87-010-132-019 S CAP,ELECT BP 1-SOV C509 %*87-018-044-019 S CAP,CERA-SOL 1000PF SOV B
C311 -*87-018-035-019 S CAP,CERA-SOL 180PF K SOV B C510 %*87-018-044-019 S CAP,CERA-SOL 1000PF SOV B
C312 = *87-018-035-019 S CAP,CERA-SOL 180PF K SOV B C511. *87-010-380-019 S CAP,ELECT 47-16V
C313 -*#87-018-024-019 S CAP,CERA-SOL 47P 50V SL C512 -*87-010-380-019 S CAP,ELECT 47-16V
C314 = *87-018-024-019 S CAP,CERA-SOL 47P 50V SL C513. -*87-010-408-019 S CAP,ELECT 47-50v
C319 = #87-010-132-019 S CAP,ELECT BP 1-50V C514 =-*87-010-408-019 S CAP,ELECT 47-S0V
C320 = #87-010-132-019 S CAP,ELECT BP 1-50V C515 -*87-010-405-019 S$ CAP,ELECT 10-50V
C321 = *87-010-402-019 S CAP,ELECT 2.2-50V C516 = *87-010-247-019 S CAP,ELECT 100-50V SME
C322 +*87-010-402-019 S CAP,ELECT 2.2-50V C517 = *87-018-004-019 S CAP,CERA-SOL S$ 3,9P
C327 *87-018-034-019 S CAP,CERA-~SOL K 150PF 50OV B C518 #*87-018-004-019 S CAP,CERA-SOL S 3.9P
C328 4#87-018-034-019 S CAP,CERA-SOL K 150PF 50V B C519 *87-018-044-019 S CAP,CERA-SOL 1000PF SOV B
C329 *87-018-044-019 § CAP,CERA-SOL 1000PF SOV B C520 -*87-015-450-019 S CAP,ELECT BP 220-25V
C330 4+*87-018-044-019 S CAP,CERA-SOL 1000PF 50V B C522. -*87-010-403-019 S CAP,ELECT 3.3-SOV SME
C334 = #87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y C523. *87-010-374-019 S CAP,ELECT 47-10V
C336 +*87-010-406-019 S CAP,ELECT 22-50V C524. = *87-010-401-019 S CAP,ELECT 1-S0V
C337 4*87-010-380-019 S CAP,ELECT 47-16V C525 *87-010-378-019 S CAP,ELECT 10-16V
C338 4#87-010-101-019 S CAP,ELECT 220-16V C526 = *87-010-405-019 S CAP,ELECT 10-50V
C339 = #87-010-371-019 S CAP,ELECT 470-6.3V C527 = *87-010-260-019 S CAP,ELECT 47-25v

DESCRIPTION
REF.NO. PART NO. ORDER DESCRIPTION REF.NO. PART NO. ORDER
C528 *87-010-246-019 S CAP,ELECT 47-35V 0312 87-020-465-019 S$ DIODE 188133
C529 -*87-010-246-019 S CAP,ELECT 47~35V 0313 87-020-465-019 S DIODE 188133
C530 *81-794-643-019 S CAP,ELECT 4700-50 0314 87-020-465-019 S$ DIODE 188133
C531. *81-794-643-019 S CAP,ELECT 4700-50 0315 87-020-465-019 S DIODE 15$133
C532. *87-010-384-019 S CAP,ELECT 100-25V 0316 87-020-465-019 S DIODE 188133
C533. *87-010-248-019 S$ CAP,ELECT 220-10V 0317 87-020-465-019 S DIODE 18S133
C534. = *87-010-260-019 S CAP,ELECT 47-25V 0318 87-027-301-019 S DIODE,ZENER HZ-3A1
C535 *87-010-453-019 S$ CAP,ELECT 4700-25V D319 87-020-465-019 S DIODE 18S133
C536 = *87-010-374-019 S CAP,ELECT 47-10V 0320 87-020-465-019 S DIODE 188133
C537 *87-010-402-019 S CAP,ELECT 2.2-50V 0321 87-020-123-019 S DIODE DS446
C541 -*87-010-260-019 S CAP,ELECT 47-50V 0501 87-027-475-019 S DIODE,ZENER HZ-681
C543. *87-018-032-019 S CAP,CERA-SOL 100PF 50V SL 0504 87-020-465-019 S DIODE 18133
C544 *87-018-032-019 S CAP,CERA-SOL 100PF SOV SL D505 87-020-123-019 S DIODE DS446
C545 = *87-010-112-019 S CAP,ELECT 100-16V 0507 87-027-451-019 S DIODE,ZENER HZ27-2L
C555. *87-018-024-019 S CAP,CERA-SOL 47P(CX-S$770,Z) 0508 87-020-465-019 S DIODE 18S133
C556 *87-018-024-019 S$ CAP,CERA-SOL 47P(CX-S770,Z) D509 87-027-702-019 S DIODE,ZENER HZ-6C2L
C557. *87-010-380-019 S CAP,ELECT 47-16V D510 87-027-702-019 S DIODE,ZENER HZ-6C2L
C559 *87-010-380-019 S CAP,ELECT 47-16V 0511 87-027-449-019 S DIODE,ZENER HZ15-3L
C560 %*87-010-380-019 S CAP,ELECT 47-16V 0512 87-027-474-019 S DIODE,ZENER HZ11A2
C561. *87-010-380-019 S CAP,ELECT 47-16V 0513 87-027-474-019 S OIODE,ZENER HZ11A2
C562 %*87-010-380-019 S CAP,ELECT 47-~16V 0514 87-020-465-019 $ DIODE 188133
C571 + *87-018-044-019 S CAP,CERA-SOL 1000PF SOV B 0515 87-020-465-019 $ DIODE 18S133
(CX-S770,Z) D516 87-020-945-010 S DIODE LPGO6D
C572. *87-018-044-019 S CAP,CERA-SOL 1000PF 50V B D517 87-020-945-010 S DIODE LPGO6D
(CX-S770,Z)
0518 87-020-945-010 S DIODE LPGO6D
C576 =. *87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y 0519 87-020-945-010 S DIODE LPGO6D
(CX-S770,Z) 0520 87-020-946-010 S DIODE KBPC 602L
C577 —-*87-018-032-019 S CAP,CERA-SOL 100P(CX-S770,Z) 0521 87-020-465-019 S DIODE 1$S133(CX-S770)
C578 -*87-018-032-019 S CAP,CERA-SOL 100P(CX-S770,Z) 0522 87-020-465-019 S DIODE 1$$133(CX-S770)
C579 = ¥87-018-032-019 S CAP,CERA-SOL 100P(CX~S770,Z) 0523 87-020-465-019 S DIODE 1$S133(CX-S770)
C580 %*87-018-032-019 S CAP,CERA-SOL 100P(CX-S770,Z) 0524 87-020-465-019 S$ DIODE 1S8S133(CX~-S770)
C581 *87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y 9525 87-020-465-019 S DIODE 18133
(CX-$770,Z)
0526 87-020-465-019 S$ DIODE 188133
C582 *87-018-047-019 S CAP,CERA~SOL 0.01UF 16V Y 0527 87-020-465-019 S DIODE 188133
(CX-S770,Z) D528 87-020-465-019 S DIODE 188133
C587 -*87-018-047-019 S$ CAP,CERA-SOL 0.01UF 16V Y 0529 87-020-465-019 S DIODE 188133(CX~S770)
(CX-S770,Z)
0530 87-020-465-019 S$ DIODE 1S8133(CX-S770)
C588 %*87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y 0531 87-020-465-019 S DIODE 1$8133
(CX-S770,Z) 0532 87-020-465-019 S DIODE 188133
C590 %*87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y 0533 87-020-465-019 S DIODE 188133
C591 *87-018-121-019 S CAP,CERA-SOL 150PF(CX-S770,Z) 0534 87-020-465-019 S DIODE 188133
C592. -*87-018-121-019 S$ CAP,CERA-SOL 150PF(CX-S770,Z) AF 87-035-369-010 J FUSE,TS5A
A F2 87-035-369-010 J FUSE,TSA
CF101 %*87-008-261-019 S FILTER SFE 10.7 MAS-A A F3 87-035-365-010 J FUSE,T2A
CF102 *87-794-670-019 S BFU 450C4N
CF103 %*82-794-697-019 S ANT BIRDY(CX-S770,Z) ANF6 87-035-222-010 J FUSE,T1A(CX-S770)
0101 %*81-754-634-019 S$ VARI CAP KV 1260 ANF7 87-035-222-010 J FUSE,T1A(CX-S770)
Jt 87-049-851-019 J JACK PIN 2P(AUX)
D102 87-020-465-019 S DIODE 1$$133 J 87-049-851-019 J JACK PIN 2P{CD)(SYSTEM 305)
0103 87-027-475-019 S DIODE,ZENER HZ-681
0104 87-020-465-019 $ DIODE 188133 J2 87-049-833-019 S JACK SP(PHONO)
0105 87-020-465-019 S DIODE 1$S133 J3 87-049-659-019 S JACK 13P(CD)(CX-S770)
J5 87-049-852-019 S$ JACK,3.5(SURROUND SP.L)
0107
87-020-465-019
S
DIODE
188133
J6
87-049-852-019
S
JACK,3.5(SURROUND
SP.R)
0301 87-020-123-019 S DIODE 08446
0302
87-020-123-019
S$
DIODE
DS446
J7
*87-033-195-019
S
TERMINAL,
SP-4P(
SPEAKERS)
0303
87-020-123-019
S
DIODE
DS446
L3
#81-753-638-019
S
COIL
QUAD
(P)
L4 *81-753-639-019 S COIL QUAD (S)
0304 87-020-123-019 S DIODE 0S446 L101 *87-006-141-019 S COIL MW ANT-6R(S)
0305 87-027-475-019 S DIODE, ZENER HZ-681
0306 87-020-123-019 S DIODE 0S446 L102 %*82-794-687-019 S OSC MW
0307
87-027-475-019
S
DIODE,ZENER
HZ-6B1
L103
87-006-142-019
S COIL
LW
ANT
L104 82-794-688-019 S COIL LW OSC
0308
87-020-465-019
S
DIODE
1$$133
L105
*81~701-642-019
S
CFLZ-450A
D309 87-020-465-019 S DIODE 1$8S133
D310 87-020-465-019 S$ DIODE 185133 L106 ¥*87-008-253-019 S LPF
0311 87-020-465-019 S DIODE 188133 L107 *87~005-121-019 S COIL 2.2UH
L301 %*87-003-129-019 S COIL J 6.8MNH
L302 %*87-003-129-019 S COIL J 6.8MMH
£303 %*87-003-125-019 S COIL J 3.3MMH

REF.NO.
PART
NO.
ORDER
ODESCRIPTICN
REF.NO.
PART
NO.
ORCER
ESCRIPTION
L304
%*87-003-125-019
S
COIL
J
3.3MMH
C766
%*87-010-264-019
S
CAP,ELECT
100-10V
SRE
L305
%*81-794-661-019
S
COIL
OSC
C768
%*87-010-264-019
S
CAP,ELECT
100-10V
SRE
L501
%*87-005-366-019
S
COIL,
1UH(CX-S770,Z)
C770
*87-018-047-019
S
CAP,CERA-SCL
O.01UF
16V
Y
L502
%*87-005-366-019
S
COIL,
1UH(CX-S770,Z)
C771
+
-*87-015-684-019
S
CAP,ELECT
47-16V
SRA
L503
%*87-003-057-019
S
COIL,4.7UH(CX-S770,Z)
C772.
*87-015-684-019
S$
CAP,ELECT
47-16V
SRA
R517
-*87-025-393-010
J
RES,MFO
2W
0.22
C773.
*87-018-047-019
S
CAP,CERA-SOL
0.01UF
16V
Y
R518
%*87-025-393-010
J
RES,MFO
2W
0.22
C774.
*87-018-041-019
S
CAP,CERA-SOL
K
560PF
50V
B
ZA\
R534
~—-*87-029-102-010
J
RES,FUSIBLE
1/4W
47
C775
*87-015-684-019
Si
CAP,ELECT
47-16V
SRA
A\R535
=
*87-029-082-010
J
RES,FUSIBLE
1/4W
100F
CB35
#8
7-010-392-019
S
CAP,ELECT
33-35V
A.R545—-*87-029-089-010
J
RES,FUSIBLE
1/4W
4.7
C851
*87-010-379-019
S
CAP,ELECT
22-16V
SME
AX
R548
=
*87-029-102-010
J
RES,FUSIBLE
1/4W
47
C852.
*87-018-020-019
S
CAP,CERA-CYL
33P
A,
R569
—-*87-029-105-010
J
RES,FUSIBLE
1/2W
10
C854
%*87-015-684-019
S
CAP,ELECT
47-16V
SRA
QV
R570
~—-
*87-029-105-010
J
RES,FUSIBLE
1/2W
10
C856
*87-010-379-019
S
CAP,ELECT
22-16V
SME
AV
R597
~—-*87-029-089-010
J
RES,FUSIBLE
1/4W
4.7
C859.
*87-010-248-019
S
CAP,ELECT
220-10V
AX
R602
=
*87-029-089-010
J
RES,FUSIBLE
1/4W
4.7
C860
%*87-015-684-019
S
CAP,ELECT
47-16V
SRA
RY501
87-045-251-019
S$
RELAY
G5R-12V
0751
87-020-979-019
S
PIN
PHOTO
DIODE
SPS-503(REM.SE.
)
SFR1
-*87-021-737-019
S
SFR
470
D761
87~020-465-019
S
DIODE
188133
SFR2
%87-021-737-019
S
SFR
470
D762.
87-020-465-019
S
DIODE
1S8S133
SFR3
-*87-021-737-019
S
SFR
470
0763
87-020-465-019
$
DIODE
18$133
SFR4
487-021-737-019
S
SFR
470
0764
87-020-465-019
S$
DIODE
18133
SFR5
-#87-021-741-019
S
SFR
4.7K
0765
87-020-465-019
S$
DIODE
188133
SFR6
*87-021-741-019
S
SFR
4.7K D767
~=—-87-020-465-019
S
DICDE
188133
SFR7
-#87-021-743-019
S
SFR
22KB
0851
87-020-465-019
S
DIODE
188133
SFR8
%87-021-743-019
S
SFR
22KB
0852
87-020-465-019
S
DIODE
185133
(CX~S770,£,Z,SYSTEM
305)
SFR101
#87-021-742-019
S
SFR
10K
TC101
*87-011-131-019
S$
CAP,TRIMMER
30PF
0853
87-020-465-019
S$
DIODE
1S8S133
TC102
*87-011-131-019
S
CAP,TRIMMER
30PF
0855
87-020-465-019
S
DIODE
188133
TC103
-*87-011-131-019
S
CAP,TRIMMER
30PF
0856
87-020-465-019
S$
DIODE
1$$133
VR501
8
1-794-644-019
S
“VOLUME
SOKA
2
GANG(INPUT
LEV.)
0857
=
87-020-465-019
S
DIODE
185133
X101
-*87-030-133-019
S
CRYSTAL
7.2M
(S)
0858
87-020-465-019
S$
DIODE
1$8133
0859
87-020-465-019
S$
DIODE
188133
I==
FRONT
CIRCUIT
BOARD
SECTION
===
0860
87-020-465-019
S$
DIODE
188133
PCB-8
*
S
FRONT
CIRCUIT
BOARD
0865
87-020-465-019
S$
DIODE
188133
C701
%*87-015-697-019
S
CAP,ELECT
3.3-50V
SRA
D866
87-020-465-019
S
DIODE
188133
C702.
=
*87-015-697-019
S
CAP,ELECT
3.3-50V
SRA
0867
87-020-465-019
S$
OIODE
1$$133
C705
*87-015-695-019
S
CAP,ELECT
1-SOV
SRA
0868
$87-027-393-019
S
DIODE,ZENER
HZ4C2
C706
*87-015-695-019
S
CAP,ELECT
1-SOV
SRA
0869
87-020-465-019
§
DIODE
188133
C709
-*87-015-692-019
S
CAP,ELECT
0.22-S0V
FL
*81-783-662-010
S$
FL,2PRO
EX(TIM./FREQ.DISPLAY}
C710
=.
#87-015-692-019
S
CAP,ELECT
0.22-50V
L751
-*81-783-656-019
S
COIL
YX
C719
—-*87-018-039-019
S
CAP,CERA-SOL
390PF
K
SOV
L761
-*81-794-611-019
S
COIL
2
MHZ
C720
#8
7-018-039-019
S
CAP,CERA-SOL
390PF
K
SOV
L762
%*87-003-045-019
S
COIL
CHOKE
C723
—-#87-018-044-019
S
CAP,CERA-SOL
1000PF
SOV
L763
*87-003-045-019
S
COIL
CHOKE
C724
%87-018-044-019
S
CAP,CERA-SOL
1000PF
SOV
L791
-*87-003-045-019
S$
COIL
CHOKE
C725.
*#87-015-681-019
S
CAP,ELECT
10-16V
SRA
L792
*87-003-045-019
S$
COIL
CHOKE
C726
—-*87-015-681-019
S
CAP,ELECT
10-16V
SRA
LED1
%*87-020-987-019
S
LED
SLZ981C-02-T1(SP.A.70HZ)
C727.
~=—-#87-015-684-019
S
CAP,ELECT
47-16V
SRA
LED2
%*87-020-987-019
S
LED
SLZ981C-02-T1(SP.A.70HZ)
C728
=
*87-015-684-019
S
CAP,ELECT
47-16V
SRA
LEO3
»*87-020-986-019
S
LED
SLZ981C-02-T1(SP.A.70HZ)
C731
-*87-015-681-019
S
CAP,ELECT
10-16V
SRA
LED4
%*87-020-986-019
S
LED
$L2981C-02-T1(SP.A.70HZ)
C732
-*87-015-681-019
S
CAP,ELECT
10-16V
SRA
LEDS
%*87-020-986-019
S$
LED
SLZ381C-02-T1(SP.A.70HZ)
C733
#87-015-698-019
S
CAP,ELECT
4.7-5OV
SRA
LED6
%*87-020-987-019
S
LED
SLZ981C-02-T1(SP.A.350HZ!
C734
—-#87-010-112-019
S
CAP,ELECT
100-16V
LEO?
%*87-020-987-019
S
LED
$LZ981C-02-T1(SP.A.350HZ
C739
=
#87-015-692-019
S$
CAP,ELECT
0.22-50V
LED8
%*87-020-986-019
S
LED
SLZ381C-02-T1(SP.A.350HZ!
C740
=
#87-015-693-019
S
CAP,ELECT
0.33-50V
S
LED9
%*87-020-986-019
S
LED
SLZ381C-02-T1(SP.A.350HZ
C750
*87-015-698-019
$
CAP,ELECT
4.7-SOV
SRA
LED10
#*87-020-986-019
S
LED
SLZ381C-02-T1(SP.A.350HZ!
C751
-#87-015-698-019
S
CAP,ELECT
4.7-S5OV
SRA
LED11
*87-020-987-019
S
LED
SLZ981C-02-T1(SP.A.
1KHZ)
C752
*87-015-698-019
S
CAP,ELECT
4.7-SOV
SRA
LED12
*87-020-987-019
S
LED
SLZ981C-02-T1(SP.A.
1KHZ)
C753
*87-015-698-019
S
CAP,ELECT
4.7-SOV
SRA
LED13
*87-020-986-019
S
LED
SLZ381C-02-T1(SP.A.
1KHZ)
C754
—-#87-015-698-019
S
CAP,ELECT
4.7-50V
SRA
LEDI4
#*87-020-986-019
S
LED
$LZ2381C-02-T1(SP.A.1KHZ)
C755
-*87-010-101-019
S
CAP,ELECT
220-16V
LED15
¥*87-020-986-019
S
LED
SLZ381C-02-T1(SP.A.
1KHZ)
C760
*87-010-264-019
S
CAP,ELECT
100-10V
SRE
LED16
*87-020-987-019
S
LED
SLZ981C-02-T1(SP.A.3.5KHI}
C761
=
#87-010-379-019
S
CAP,ELECT
22-16V
SME
LED17
%*87-020-987-019
S
LED
SLZ981C-02-T1(SP.A.3.
5KHi}
C763
—-#87-014-068-019
S
CAP,PP
3000P
LED18
%*87-020-986-019
S
LED
SLZ381C-02-T1(SP.A.
3.
SKHi)
C764
= #87-015-698-019
S$
CAP,ELECT
4.7-50V
SRA
LED19
*87-020-986-019
S
LED
SLZ381C-02-T1(SP.A.3.
SKH!)
C765
#87-018-046-019
S
CAP,CERA-SOL
0.0047UF
25V
LED20
%*87-020-986-019
S
LED
SL2381C-02-T1(SP.A.3.5KHi)

REF.NO. PART NO. ORDER DESCRIPTION REF.NO. PART NO. ORDER DESCRIPTION
LED21 %*87-020-987-019 S LED SLZ981C-02-T1(SP.A.10KHZ) C907 *87-010-402-019 S CAP,ELECT 2.2-50V(CX-S770)
LEO22 %*87-020-987-019 S LED SL2981¢-02-T1(SP.A. 10KHZ) C908 -*87-010-382-019 S CAP,ELECT 22-25V SME(CX-S770)
LED23 %*87-020-986-019 S LED SLZ381C-02-T1(SP.A. 10KHZ) C909 *87-010-402-019 S CAP,ELECT 2.2-50V
LED24 %*87-020-986-019 S LED SLZ381C-02-T1(SP.A. 10KHZ) C910 = *87-010-401-019 S CAP,ELECT 1-50V
LED25 %*87-020-986-019 S LED SLZ381C-02-T1(SP.A. 10KHZ) C911 *87-010-380-019 S CAP,ELECT 47-16V
LED26 »*87-020-551-019 S LED TLG208(CD)(CX-S770) C912 = *87-010-381-019 S CAP,ELECT 330-16V SME
LED26 %87-020-551-019 LED TLG208(AUX)(SYSTEM 305) C913 *87-010-401-019 S CAP,ELECT 1-SOV
LED27 »*87-020-551-019 S LED TLG208(AUX)(GX-S770) 0901 87-020-123-019 S DIODE DS446
LED27 »%*87-020-551-019 | LED TLG208(CD)(SYSTEM 305) D902. 87-020-465-019 S DIODE 188133
LED28 *87-020-551-019 S LED TLG208(PHONO) D903 = 87-020-465-019 S DIODE 188133
LED29 %*87-020-551-019 S LED TLG208(TAPE) 0904 = 87-020-465-019 S DIODE 188133
LED30 *87-020-551-019 S LED TLG208({VOL. INDICATOR) 0906 87-020-465-019 S DIODE 158133
LED31
*87-020-551-019
S
LED
TLG208(VOL.
INDICATOR)
0907
=
87-020-465-019
S
DIODE
188133
LE032
»*87-020-551-019
S
LED
TLG208(VOL.!NDICATOR)
0908
=
87-020-465-019
S
DIODE
158133
LED33
*87-020-551-019
S
LED
TLG208(VOL.!NDICATOR)
0909
87-020-465-019
S
DIODE
188133
LED34 *87-020-551-019 S LED TLG208(VOL. INDICATOR) 0910 = 87-020-465-019 S DIODE 188133
LED35 ¥*87-020-551-019 S LED TLG208(VOL. INDICATOR) 0911 = 87-020-465-019 S DIODE 1SS133
LED36 *87-020-551-019 S LED TLG208(VOL. INDICATOR) 0912 = 87-020-465-019 S DIODE 18S133
SW1 87-031-897-019 S SW PUSH(OSC) 0913 87-020-465-019 S DIODE 18S$133
sw2 81-794-612-019 S SW PUSH(DOLBY NR) 0914 87-020-465-019 S DIODE 188133
Sw3 +++ S SW PUSH(CBRS)(CX-S770) 0915 87-020-465-019 S DIODE 188133
SW3 +++ S SW PUSH(CONT.PLAY) (SYSTEM 305) 0916 87-020-465-019 S DIODE 1$$133(CX-S770)
sSw4 87-031-771-010 J SW TACT(CD)(CX-S770) 0917 87-020-465-019 S DIODE 1S8S133(CX-S770)
Sw4 87-031-771-010 | SW TACT(AUX)(SYSTEM 305) 0918 = 87-020-465-019 S DIODE 188133
Sws 87-031-771-010 J SW TACT(AUX)(CX-S770) 0924 87-020-465-019 S DIODE 18S133(CX-S770)
SW6 87-031-771-010 J SW TACT(PHONO) 0925 87-020-465-019 S DIODE 1$$133
SW7 87-031-771-010 J SW TACT(TAPE) po eae
Swe 87-031-771-010 J SW TACT(VOLUME UP) === FRONTEND CIRCUIT BOARD SECTION ———
(CX~S770E ,K, SYSTEM305)
sw9 87-031-771-010 J SW TACT(VOLUME DOWN)
SW10 «8 1-735~611-019 S SW PUSH(POWER) PCB-D 81-783-652-010 S FRONTEND CIRCUIT BOARD
SW11
87-031-771-010
J
SW
TACT(FM)
C251
*87-018-044-019
S
CAP,CERA-SOL
1000PF
S50V
8B
SWi2.-87-031-771-010
J
SW
TACT(MW)
C253.
*87-018-047-019
S
CAP,CERA-SOL
O.OQ1UF
16V
Y
SW13.- 87-031-771-010 J SW TACT(TUN./TIM.UP) C254 »*87-018-008-019 S CAP,CERA-SOL K S 8.2P SOV SL
SW14.--
87-031-771-010
J
SW
TACT(TUN./TIM.DOWN)
C255
%*87-018-044-019
S
CAP,CERA-SOL
1000PF
SOV
B
SW15 87~-031-771-010 J SW TACT(PRESET STATION) C256 *87-018-006-019 S CAP,SERA-SOL S 5.6P K 50V SL
SW16-- 87-031-771-010 J SW TACT(PRESET STATION 8) C257 = *87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y
SW17- 87-031-771-010 J SW TACT(PRESET STATION 7) C258 = *87-018-108-019 S CAP,CERA-SOL 20P
SW18 87-031-771-010 J SW TACT(PRESET STATION 6) C259 = *87-018-010-019 S CAP,CERA-SOL S 12P J SOV SL
swig 87-031-771-010 J SW TACT(PRESET STATION 5) C260 = *87-018-035-019 S CAP,CERA-~SOL 180PF K 50V B
sw20 87-031-771-010 J SW TACT(PRESET STATION 4) C261 =—-*87-018-047-019 S CAP,CERA-SOL 0.01UF 16V Y
sw21 87-031-771-010 J SW TACT(PRESET STATION 3) C262 = *87-018-047-019 S CAP,CERA-SOL O.Q1UF 16V Y
SW22 87-031-771-010 J SW TACT(PRESET STATION 2) C263 *87-018-047-019 S CAP,CERA-SOL 0.014UF 16V Y
$W23.-- 87-031-771-010 J SW TACT(PRESET STATION 1) C369 = *87-018-045-019 S CAP,CERA-SOL S 2200P 25v
$w24.--
87-031-771-010
J
SW
TACT(SET)
C371
*87-018-045-019
S
CAP,CERA-SOL
S
2200P
25V
Sw25 87-031-771-010 J SW TACT(SLEEP) CF1 *87-008-261-019 S FILTER SFE 10.7MA5A
SW26
87-031-771-010
J
SW
TACT(TIMER
STANDBY)
0251
87-020-363-019
S
DIODE
1SV124A
$Ww27
—-
87-031-771-010
J
SW
TACT(EVERY)
0252
87-020-363-019
S
DIODE
1SV124A
$W28
87-031-771-010
J
SW
TACT(ONCE)
0253
87-020-363-019
S
DIODE
1SV124A
sw29.
87-031-771-010
J
SW
TACT(TIMER-FREQ)
0254
=
87-020-465-019
S
DIODE
188133
SW30
=
84-722-613-019
S
SW
SLIDE(FM
MODE)
L251
*82-791-631-019
S
FM
ANT
4
Sw31
87-031-771-010
J
SW
TACT(LW)
L252
*82-791-630-019
S
FM
ANT
3
Sw5 87-031-771-010 | SW TACT(CD) (SYSTEM 305) L253 *81-748-611-019 S FM ANT COIL
VRI
87-024-060-019
S
VR
SLIDE
SOKB(G.EQ
7OHZ)
L254
*82-791-627-019
S
FM
ANT
2
VR2 87-024-060-019 S VR SLIDE SOKB(G.EQ 350HZ) L255 %*81-748-611-019 S FM ANT COIL
VR3 87-024-060-019 S VR SLIDE 5OKB(G.EQ 1KHZ) L256 %*82-794-683-019 S IFT FM
vR4 87-024-060-019 S VR SLIDE SOKB(G.EQ 3.5KHZ) L257 %*87-007-204-010 S COIL FM OSC 2 1/2
VRS 87-024-060-019 S VR SLIDE SOKB(G.EQ 10KHZ) TC251 *87-011-142-019 S CAP,TRIMMER 10PF
VR6 81-794-642-019 S VR ROTARY SOKW(BALANCE) TC252 *87-011-142-019 S CAP, TRIMMER 10PF
I= LOGIC CIRCUIT BOARD SECTION === I== JACK CIRCUIT BOARD SECTION ===
PCB-C 81-794-616-119 S$ LOGIC CIRCUIT BOARD PcB- *
C251 *87-018-009-019 S CAP,CERA-SOL S 10P J 50V SL cae 87-018-047-019 : sees ene 46V y
C901 ¥*87-010-382-019 S CAP,ELECT 22-25V SME (CX-8770,2)
C902. *87-010-401-019 S$ CAP,ELECT 1-5OV 4 87-049-855-019 S JACK,6.3-W/S(PHONES)
C903 *87-010-112-019 S CAP,ELECT 100-16V
C904. *87-010-380-019 S CAP,ELECT 47-16V
C905 *87-010-378-019 S CAP,ELECT 10-16V
C906 %*87-010-400-019 S CAP,ELECT 0.47-50V SME

REFNO,
R599
R600
PART NO.
ORDER
DESCRIPTION
*87-025-154-019 S RES,MFO 1W 270
*87-025-154-019 S RES,MFO 1W 270
22 LED CIRCUIT BOARD SECTION ==
PCB-F
0920
LE0901
LED902
LED903
$911
$912
x
87-020-465-019
#*87-020-399-019
*87-020-399-019
*87-020-399-019
81-794-641-010
81-794-641-010
$
i)
s
SS)
]ecn
LED CIRCUIT BOARD
DIODE 1S$133
LED LN 350GPH(DOLBY NR)
LED LN 350GPH(PLAY)
LED LN350GPH(REV PLAY)
SW LEAF BSW 319(SYNC.OLB NOR)
SW LEAF BSW 319(SYNC.0U8 HI)
== SWITCH CIRCUIT BOARD SECTION ——
PCB-G
$913
*
S
SWITCH CIRCUIT BOARD
84~139-630-019 S SW LEVER(REVERSE MODE)
=o= DECK-1 CIRCUIT BOARD SECTION ==
PCB-H
0921
D922
$907
$908
$909
$910
*
87-027-365-010
87-027-365-010
86-524-601-010
86-517-621-010
86-524-606-010
86-524-601-010
SFR903 87-021-966-010
SFR904 87-021-966-010
SOL2
86-524-603-010
ceuwoncn
ee .-, c
J
J
DECK-1 CIRCUIT BOARD
DIODE $5277
DIODE $5277
SW LEAF(MOTOR D1)
SW LEAF(NORMAL D1)
SW LEAF(PLAY 01)
SW LEAF(F/R 01)
SFR 4.7K
SFR 4.7K
SOLENO1D(D1)
IIo DECK-2 CIRCUIT BOARD SECTION ==
PCB-|
$900
$901
$902
$903
$904
$905
$906
SFRIO1
x
86-524-601-010
86-524-601-010
86-524-601-010
86-517-621-010
86-524-606-010
86-524-601-010
86-524-601-010
87-021-966-010
SFR9O2 87-021-966-010
SOL
86-513-603-010
jie ec
(a ane oy en
J
J
J
DECK-2 CIRCUIT BOARD
SW LEAF(PAUSE 02)
SW LEAF(REC 02)
SW LEAF(MOTOR 02)
SW
SW
SW
SW
LEAF(NORMAL 02)
LEAF(PLAY D2)
LEAF(F/R 02)
LEAF(DIRECT. 02)
SFR 4.7K
SFR 4.7K
SOLENO!0(D2)
== SENSOR CIRCUIT BOARD SECTION ——=
PCB-J
CPI
*
J
SENSOR CIRCUIT BOARD
87-020-457-010 J PHOTO SENSOR NJL5144L8C
IZ= FRONTEND Z CIRCUIT BOARD SECTION ===
PCB-L
C251
C252
C253
C254
C255
C256
C257
C258
C259
C260
C261
C262
C264
C265
C266
CF251
81-783-653-010
*87-018-012-019
*87-018-005-019
*87-018-047-019
*87-018-012-019
*87-018-105-019
*87-018-002-019
*87-018-016-019
#87-018-032-019
*87-018-047-019
*87-018-001-019
*87-018-105-019
#87-018-012-019
#87-018-047-019
*87-018-096-019
*87-018-115-019
#82-799-621-019
aAnnn ANnNnM Annn Onn
nn
(CX-S770,2Z)
FRONTEND Z CIRCUIT BOARD
CAP,CERA-SOL 15P
CAP ,CERA-SOL
CAP, CERA~SOL
CAP ,CERA-SOL
CAP , CERA-SOL
CAP, CERA-SOL
CAP ,CERA-SOL
CAP ,CERA-SOL
CAP, CERA-SOL
CAP ,CERA-SOL
CAP ,CERA-SOL
CAP, CERA-SOL
CAP, CERA-SOL
CAP ,CERA-SOL
CAP, CERA-SOL
FILTER MS-2
4.7P
O.O1UF 16V Y
15P
$ 12P J 50V SL
2.2P
22P
100P
O.O1UF 16V Y
1P
$ 12P J 50V SL
15P
O.O1UF 16V Y
SS IP
47P
[
REFNO.
CF252
0251
0252
0253
0254
0255
L251
L252
L253
L254
L255
L256
L257
L258
TC251
TC252
T0253
PART NO,
*82-785-669-010
87-027-900-010
87-020-691-019
87-027-900-010
87-027-900-010
87-027-900-010
*82-791-630-019
*82-791-629-010
*82-791-627-019
*82-791-629-010
*82-791-629-010
*87~-003-098-019
*82-794-683-019
*81-783-671-010
*87-011-142-019
*87-011-142-019
*87-011-142-019
=== POWER CIRCUIT BOARD
Z\PCB-M
AC594
A $502
*
*87-019-112-019
87-036-066-010
ORDER
enon
enmnen
Anon ONowun
S
DESCR!PTION
FILTER MA8
DIODE 18V147
DIODE 188132
DIODE 18V147
DIODE 1SV147
DIODE 1$V147
FM ANT 3
FM ANT U
FM ANT 2
FM ANT U
FM ANT U
COIL 2.2U
IFT
FM OSC Z
CAP, TRIMMER 1OPF
CAP, TRIMMER 10PF
CAP, TRIMMER 10PF
SECTION ——>
S)
S
J
POWER CIRCUIT BOARD
CAP ,CERA-SOL 0.01(CX-S776,Z)
SW SNAP( POWER)
=== PIN JACK CIRCUIT BOARD SECTION ==
PCB-N
J8
*
87-049-851-019
ZI= MISCELLANEOUS ==
A
A
A
CONS
CON9
LED904
LED9O5
M1
M2
PH
APTI
Apt
APT
ce PTI
AN PTI
A\PT1
RPEH
Combination circuit board
*87-034-736-010
*87-034-975-010
*87-085-185-010
82-174-222-110
86-524-634-010
86-524-635-010
*87-020-985-019
*87-020-985-019
87~-045-235-010
87-045~235-010
87-046-261-010
*8 1-794-638-019
*81-794-608-018
%*81-794-640-019
*81-794-639-019
*81-794-609-018
*81-794-677-018
87-046-291-010
MOLew HHOEO COKE nn
mm
awn
G
J
(SYSTEM 305)
PIN JACK CIRCUIT BOARD
JACK( AUX IN)
AC CORD(CX-S770,E,Z,SYSTEW305)
AC CORD (CX-S770,K)
AC CORD BUSHING(E)
EH DUMMY(D1)
CONNECTOR ASSY 3P(PBH)
CONNECTOR ASSY 5P(RPEH)
LEO SLF325C-G(LIGHT)(D2)
LED SLF325C-G(LIGHT)(D1)
MOTOR, MMA6B2LW(D1)
MOTOR, MMA6B2LW(02)
PB HEAD HY422SVS(D1)
POWER TRANSFORMER(CX-S770, E)
POWER TRANSFORMER(CX-S770, &)
POWER TRANSFORMER(SYSTEM 305)
POWER TRANSFORMER(CX-S77(, K)
POWER TRANSFORMER(CX~S770, K)
POWER TRANSFORMER(CX-S770, Z)
REC/PB/E HEAD(D2)
A 81-794-620-119
PCB-A
PCB-E
PCB-F
PCB-G
PCB-M
PCB-N
Combination Circuit board 8B
81-794-630-119
Combination Circuit board
86-524-626-010
86-524-608-010
Comnination Circuit board E£
PCB-B
PCB-I
PCB-J
PCB-H
81-794-621-119
81-794-622-119
81-794-624-119
81-794-623-119
81-794-631-119
81-794-633-119 (SYSTEM305)
D
86-524-628-010
81-794-635-119
86-524-625-010
86-524-627-0 19

IC BLOCK DIAGRAM (CX-S770E, K, Z, SYSTEM 305)
IC,CXA1102 IC,.UPC1237H IC,TC4051
OVERLOAD
DETECTION
CIRCUIT
x
FLIP-FLOP
CIRCUIT
AC OFF
DETECTION
RELAY DRIVE
NEUTRAL
POTENTIAL
DETECTION
CONVERTER
LOGIC LEVEL
BINARY -TO~-8
DECODER
LATCH/AUTO— RELEASE
SELECTOR
VSS VEE
IC,LA7224
VOLTAGE
REGULATOR
WAVE FORM
SHAPING
BASE1 NF1 BASE2 NF2 BASES NF3 BASE4 NF4
IC,BA6154
CONST
CURRENT

SCHEMATIC DIAGRAM-1 (CX-S770E, K, Z, SYSTEM 305)
-~
= -
a
ae
=
i
2D
ETS
STAT
ST
ATTESTED
MAIN
C.B
(DECK
SECTION)
al
eee
oe
LE
oe
<eeRRNeNE
:
.
sy
|
Z
rime
°
2
e370
3S
a
acf
1301
rane
Sc
gs
2
NJM2068SD
R317
ar
GND,
beck
|
Nb
:PB
EO.
(DECK:
1}
150K
=
am
10306
4/2
CxANO2
Re.
3x
ee
s>
rw
|
Wr
DOLBY
NR
(B
TYPE)
2
DOLBY
NR
PH
8
C309
1
/50(BP)
Hl
4
R319
4.7K
V>REF
RECG_IN
PB
IN
MONI.OUT
Te
REC
OUT
ON/OFF
ar
NRON)
ONT
FE
SW
|
0}
7
*
<a
—2
1
acer
iz
N/OFF
SW
GND
Lo:
i
2749
M0
<p
Ors
o—
tat
nr
ore™
‘s)
=
R305
390K
ate
sot,
10302
2
3
sys
i
me
13
7
eee
TP3OL
o
87°
Le
I
BS
|
oe
|
NUU4066
R370
470
5.9
#3
(OECK
OUT+L)
83
8
|
&
MONITER
OUTPUT
<Q
SW
ox
OUTPUT
‘2
0
=
TPZO3]
SG
“
MUTE
°
R307
28
ea
2
Vy
per
{GND}
Q319
8
Boog
{POA
20uSh
Spe.)
MUTE
bes
aLpeis
am
ts
Wet
2802001
5
GO
Roa
poLey-sw
e
T
(
DECK-1)
eye
|
ome
LS
R393
if
i
g
ney
0310
D311]
|
0310
~
D317
RCH
z
a3
:
|
mR
>
yee
2
338
1$$133
XB
|
d
=
273
4
fee
oR
ave
ieee
=
R403.
47K
|
R404
10K
|
i
PB
SENS
|
Ls
|
ht
e
fot
-]8
RS
>
Ps-ourtin
oP
Wp
me
REC
i
&
fabd
Bre
HIGH
SPEED/!
|
mex
i
pad
”
=
.
i
i
im
i
e
peck-1
||
8
‘G
NORM,SPEED
mi
16302
Bye
i
|
{
<
=
BOGS:
7erere0
|
V
REF/—~*-
N-
Bu
|
|
Numaoee
=
fetal
%
V
REF
[ehanieeieeeisanacianieaiaeieenaaeeteee
eee
|
oe
|
;
Toor
tea
eis
apt
ete
ip
ee
OT
Se
oer
gals
Cha
ee
Tee
:
D317
Raos
10K
D314
i
a
|
t
H-SP:
H
‘
AN
|
Wet
eran
a
10306
1/2
CXAil02
DOLBY
NR(B
TYPE)
|
|
|
D316
2
oy
i
A369
10K
|
H
IR_EF
ff
eve
ex
ew
Lo).
dap
ae
ees
poe
ee
©
GO
®
J
sate
el
zTs
3]
|
@
ae
—>—
+t
PB-INR)!
=
10K
gnee
,
as
|
1
,
Ht
.
:
'
4.7/50
R408
470K
7”
To
|
——+-—
|
ee
oe
Ciera
rr
i
iH
t
|
{TUNER
SECTION)
&
ii
|
4
”
:
>
+
|
.
=
|
REC"
INIR
Mosman
wh
ugueweuau.
i
|
i
—*
° ;
<
1
i
eae
rf
|
}
£0.
(DECK-2)
c
ia
&
\
i.
‘
i
1
|
poe
ass
|
\Sua0eeno
|
|
ae
aaa
8
lax
“
|
RPH
To303
on
Pyod
i
|
aaee
680K
«=X
Fe)
Rag7
198133
23
3
R432
0374
225
|
|
NuM2068SD
o3i9
‘@4
|
wb
R420
15M
cot
8508
|
.
nas,
87K
OS
eS
|
i
LCH
2
750
(8P)
sh
4
Z
|
[let
[wb
ie
Ae
if
i
po
|
|
ic
9a
9
—
Ay
:
sai
I
H
ie
0369
a5
C371
R421
i
i
R333
[OE
rei
|
rt
if
4—
RBZ
390K
|
gy
ark
|
ee:
GUTEUT
|
|
22007
13-4
12
2200p
150K
1
34
}
Nn
J
1
4
x
zs
{
We
oR
PB
OUTPU
6
4
ee
ael
|
a
|
RCE
SQ
|
ee
UT
|
S|
°
wecK-2
idl
|
G36
auiper
lee
|
§
ae
aMutTe
|
S|
i
|
10307
eye
8
o3i7
«R327
ho.
|
i
|
|
”
sere
|
=
:
7
Si
|
ha
Tc
4069
Sys
ves
8.2K
x
|
&
|
Hy
|
i
|
MS
(DECK
1}
wr
”
|
g
i
|
i
£9
gw
HL
Ate
2
|
loi
4s
ia
{70/120uS)
12
|
fs
1
N
hb
: :
(4)
«
i
2
|
|
|
©
-
sacra
ec
wives
F
|
|
|
|
t
2
ig!
i]
+
sit
po
|
Jane
+
+
j
m 2
|
ek
Pt
ajoss
sw
|
isneee
|
303.0307
pe.
ie]
Soe
om
i
Se
|
PB/REC
SW
'
:
|
wn
i
(rtare
|
{AT
REC
ON)
|
Q3
'
|
0323)
|
|
(F)
GNO
2H
Xf,
im
7
(Q)
+8m
|
=
a
a
|
B)
pow-con
|
|
|
yous
|
|
sia
ol
i
i
iceoe!
dee
ee
H
z
|
|
4
vERTER
|
|
|
|
i
3
Z|
|
9323
|
(|
i
as
;
ia
FI
|
DTC144
|
|
i
|
c
2M
305
ONLY?
|
ros
as
ji
t i
-
|
}
REC
AMP
i
it]
|
(LIGHT!
|
|
/
10305
NJM2068S
|
ehd
i
(DECK-2)
(DECK-1)
ii
—=—
LEDSO4
ED905
i
REC
7PB
SENS)
|
REC
INPUT
1
|
>
S
|
ADJ.ADECK-2)
SELECTOR
an
LEDQ04
,LEDIOS
|
LECT
|
S =
hot
4
10308
|
pala
]
SUF-a28¢-6
#2
Pid
d
i
xe
|
FT
IN3U4066
A347
i
rAd
a
Lo
7
.
{
BD
12k
1
|
sa
|
ANY
t
L
i
aE
|
raDtic
acer
J})
|
asst]
el
oN
int
f&
H
HO
|
|
|
85
2|
138133
x3
UL
100K
|
=
lorciaa
|
tot
i
i
om!
|
=
|
SYNCHRO
CURBING
mee
0.012
|
\
ES
_
papa
|
ara
=
2]
sor
ay
i
i
4
10K
i
i
7
Se,
ee
|
at
esa
&
i
re
é
S|
Romar)
rion
SEES
i
!
A
q
‘
|
@
2
Goes
|
Vibrato
|
280945P
=
|
9313)
ge
=
ot
ap
ee
7
iV
REF}
a
e392
@
q
LeDSO)
i
|
|
ey
SPEED
ON
OOUBLE
SPEED
ON
oe
|
2
{pos
|
|
|
rd
Lj]
|
;
seoel
|
|
ss
Ble
|
in|
b
|
ene.
[Fes
Bul
sags
|
i]
[oo
peceseee
1
Sissi
eee
ae
ame
tener
ee
eee
|
iz
zili
i
Bay
22RRz:
>
at
|
i
|
|
aera
e305
i
acs
+32
Ba
r
Blo
|
ZL
REY.
Le
s
|
8001/4)
aaetl
!
: s
;
i
ae
al
=>
he
S|
\
Deo:
|
i
i
ag
z=
Hf
3
Sat
LED302
i
4
Zs
i
28
|
a
comigs
|=
Lepso2
rami
|
ii
ees
eo
eae
Bes
85
<
poet
|g
oe
(eel
|
tt
5}
i
AH)
5
S
=
s[:
a
eff
PUD
MS
ones
etse
at
Re
eae
een
|
[|
ela
wees?
Ty
et
*g3e
2
g/
axe
Lx
16
:
sss
aK
I
23
S
_2
7
3
[as06
ioox)
Qa0e]
|
|
3@
32)
53!
o
-
LED9o3
{
ES
i
i}
4
AN
—__—¢
|
GND
e
alee
LED903
|
S
man
naan
pe
—
+
|
2saroisieR)
xn
J
280655
|
ae,
i
Ww
|
|
Bf
arev
t
|
LI
0327
SFR?
Fy
22K
D
fe)
D306,
D032}
{ek
Q
i}
3
i
j
©
ai
PLAY
it
sor
1h
L305
Hells
R353
47
|
heaae
T
|
in
oq
mate
i
‘
GaLeD
c
Lep90
|
0328
SFR8
—4
22K
fBtas
Osc]
S
S44
0S446
ry
{
“et
jt
ROI1
4.7K
R913
590K
|
i
=
re
i~LED9O3
t
i
‘
2
18
i
795
——
-
at
Sw
2
\
LN
3SOGP
|
1
T30p,
db
+
sIEREO.
ADI]
CON
OSS
an
x
12
ee
We
I
|
im
al
:
pee
lag
—
RZSFRB
i
305
Siz
S45
BOK
f
—
+
i
|
is
iced
a
5304
0305
;
30
|e
3@s8
red
OE
EE
1
im
0.7
J
N
+
jit
es)
a
id
RR
cE
—O->
;
a
9903
rela
Ts
=
agi
|
|
|
0s446
Hz68
e
7
ICK
REVERSE
Zig)
ai
Z
Sa)
'
|
|
t
3
I
E
VERSE
z
uu
a
——
pone
>
6-3
=
|
DRIVER
INVERTER
3
3
9
+
Ctiomn
|
S913
a
eeperearc
a
crear
i
3
1
"
hee
een
u
ave
|
743
i
t
TPaICsS
mo
ements
:
arsed
I
3
(Tt
bea
203)
Kane
‘
|
9901.9902
are
9
Oo
@
Che
>
=
ere
bres)
T
8
|
¢
:
eisai
|
i"
/
|
z
|
GoNie
c
*
1
ee
|
222.
op
aapennnnrnnnd
QUICK
REVERSE
al
32
a
le
3
TAPE
SPEED
sé
cont
SWITCH
C.B
Le
sor
8
a32:
ee
|
er
ee
en
ee
He
wars.
sBee
V
REF
_
zi8
SIAS
ON
ow
ei
+
3901(02)
REC
{5
i)
@
«
=
aa
:
a
PINI0
PINIT
Vine
SPEED
ON)
adi
Q315
i
oN
eecsouin
zs
1S$133
s902(02}.S907(01)
MOTOR
rms
Ee
i)
@)
@)
OF
wane
a916
as
RES
2scZ001K
oy
|
$903(02).8908(01}
NORM.
‘
s|
i
=
2SA10/56R
;
09
|
5
25Ai085)
ay
BEAT
ad
$904(02)$903(05)
PLAY
'
ct
bo
BtSl
a
lz
|
Belew
ia
elle
he
>
"1
-
SELECTOR
_|
3905102}5910(01)
F/R
6
oS
ZS
SlZ]
|
yoqgols
Book
fe]
Jol
Sle
|
K)
a
=
Sw
ad
.
$906(D2)
DIRECTION
[—~
Bsls
12
iz
\
4
a
&
=)
\
ars
220K
|
=
=
ant
¥
B13
A
ie
olf
[B92iy
S277
?
oe
‘
?
4
a
|
+
|
SFR90;
RISO
|
[4
|
Fd
wel
|
SFR903
R987
y
|
Je
VCE
Be
i
gb
se
Sart
08)
|
@)
ye
\
\
©
4.7K
10K
}
8
§
zy|2
oan
Pa
—_
4
'
-
—
o
5
igep
i
= 4.7K
©
Smee
1
:
;
aoe
g
1
CPI
ee
t
ee
eae
ROSI
12K
3
soue
tT
mane
Aas
NJLS
1441.90
MPOEcK-2
cB
Mveck-1
c.g
“5
“Se
lek
TO
STOP
-
-
2
RTECS
SENSOR
C.B
SFR9O!
SFR9O2
SFR
903
SFR904
[HIGH
SPEED
NORMAL
SPEED]
(HIGH
SPEED
| [NORMAL
SPEEO)
J
AQ.
(OECK~
2)
AQJADECK~2)
|
LAD.
(DECK=i)}
[ADJ.(OECK=17
|
:
The
shaded
section
is
not
applied
to
the
model
of
SYSTEM
305
11
12

WIRING-1, SCHEMATIC DIAGRAM-—2 (CX-S770E, K, Z, SYSTEM 305)
1 2 3 4 5 6 7 8 9 10 11 12 13 14
pete ate sat epee ie = ss
(CX-S770
E,K ONLY! (CX-S770
TLCP.T) ORG (GX-8770 a ;
A
Seer
aere
ts
_
pect.
3
ET,
[B})
FRONTEND
C.B
SYSTEM305)
|
FRONTEND
C.B
Z
ONLY)
(CX-S770
'
|
1
peas
:
;
ney
2
j
OMEN
H
|
|
$770k
ONLY)
¢
-
nad
=
!
gear
| ao 1 H R
i S ' l H
|
2
i
|
\
|
| a { ' \ !
l
7
nT
ok
i
|
1
\ } H {
B
[ite
Ce
eens,
=
I
a
:
CON
6
BED
Me
5
BLK
I
1
2 i i
zo 1 if
2; 3 RED: |
$= a YEL | CONIS
es
:
I
|
!
yer ! ;
Cc
Hi
DECK-!|
C.B
a
CON
5
Grn
TAMA
ee
.
:
H
“
oO
1
i
Ao)
MB
DECK-2
C.B
DI:
DECK
1
22
ao
|
13
1211.19
NT
765432
(0
11
(5
2
v65432
[8
: = 2 esas = 7 Sy Ne a.
DesePEChe
26
ari
BLK
ToBI
Main
ce
to
FAMAIN
c.8
To
FN
tof
main
c.8
ToBMAIN
cB
oe
eas
the
MANGE
a
oe
eee
Aes
*
i caw 2 =
SFR904(0
1)
|
SFREOZID2) [B}FRONTEND C.B(CX-S770 les Weare
Qgi5(D
1)
E,K
ONLY
;
D
a916(D2)
SYSTEM305)
(—<WH
zie
251
i
RIBBON
MIX,
OSC
1!
IF AMP.
R991
(D2)
i
L257
i
ws
|
ae 5
onan
TC
251,
252
L251, 252,254,255 a i
FM TRACKING ADJ. 0
E
L256
rd
I FM ST. DISTORTION O° 1!
$0L2
$908(D1)
S906(D2)
S9OI(D2)
S$9I0(D1)
SOL!
S9O7IDI)
$909(D1)
$900(D2)
ADJ.
!
(01)
S903(D2)
(DIRECTION)
(REC)
S§905(D2)
(D2)
$902I02)
$904(D2)
(PAUSE)
\
(MS)
(NORM.)
(F/R)
(REV)
(MOTOR)
(PLAY)
1
FM RF @251 R259 '
AMP.
2SK241GRp
pa
\
3 a
SENSOR C.B 2 iE $6 Be a +E [c262
—~ {0 o to Aw = 1
nas sis ss n * ss ee Reel
F
K—<BLK/WHD-—3
29
g_+412
fF
26
ele
=
3
a
me
1
gl Fi © i 8 Bex au) OTe vetes ox = jl ue i
T:
“2
mY
=
8
GSR
a
o>
Se
wt}
eo
i
cea
oF,
(22S
SS
SS
eee
ae
ee
+
J
alt
Sj
of
ps
|CX-S770
E,Z,
SYSTEM3O5
ONLY
}
a
7
3
GND
a
:
MI
(D1)
Ps)
NS
or
a
ee
|
_—-
|
8B
:
ES
AT
eee
oe
!
jAC 220V <@g«: i ts NS !
|
50/60
Hz
Li
ole
|
i
!
Te
L
! ! oe
ee
eet
eee
Je
|
Pes
!
G
|
CX-S770
K
ONLY
é
OOO
(SE
(7)
=
iO
@|
(0)
(23)
|
H | 3 E g CON |5GRiD-FM OSC 3 - oO |
'
2
>
%-LS
2
Bie
+t
1
! 2 g Toff MAIN CB 8 o |
a
nee,
Sen
Fa
ee
OE
en
tata
eg
ees
8
ol
P HEAD R/P/E HEAD poe OOH 4 pectin = =
mel
ROE
e)
oe
Ott
eee
ee
ee
ee
J
|
[DM
FRONTEND
C.B
(CX-S770,
Z
ONLY)
| C265 IP
i Gh ate 3
:
R254
BGEo
pres
1c
251
FM
MIX,
OSC
' 47K NCOP spoke LAII77 IF AMP.
| Byes &| 8 Pao I
| S687] pate 1 Elo ne
Bites Sete ay a
0252
' ISsi32 —
TC252
\ C254 ISP
L254 ee)
; L253
1 F I)
i Io i]
; ow
fon
! i)
| Casal
| O25), JR252
c2s2 970K Ras)
Hi 4.7P—
J
PRR
ees
| [Sadi ooh ahs, a
iOP L257
i ce a
BY
man
ca
FX
main
c.8
=A)
|
[casi
1)
|
267
ADI.
SHIELD
PIN
B
PINS
|
0.0047"
C351,
252,258
WIRE
BLK L252 700 Fy 251,252,253, 254,255
ore
(¢x-8770E,2
SYSTEM
305/YEL(CX-770,
kK
}=-————
eae
7
[EM
TRACKING
ADJ.
|
ei Case
FM VT ADJ,
| Ke
K CeO Oo Ons On Ommaten =—O=O (3)
1 a be 2 3 5 a
\ ft 2 o 6 8 +t
2 « &
\
\
CX-S770,Z ONLY
Os aaa eh a hee a Sele a ey aera eee _ a tel iae oe ea oe a =
13 14

SCHEMATIC DIAGRAM-—3S (CX-S770E, K, Z, SYSTEM 305)
-
SS
AS
AS
A
SS
A
Se
AS
Oo
ALACRA
Gb
SSSSESCESCSSSSEAGGSD
Soo)
CESEMSERGMGEENAGNGSREMGHNESENN
SOQ
ciutwoccmemnnneneneceetsncisesucomeeren
<m
Qit2 2sc2001k
SICK 102 SFU450C4N
1iCX-S770 EKONLY SYSTEI
RIO3 F101 7 QUADIP} Quaots)
SFE!O.7 MASA
«GND jose sneeneneseernesesrneacneccnmamsth }\ [) ureeeenecesee cass A eens SN [
3
‘
oN
NC
FMMONO
ft.
2
(Fama
IDISTORTION
Au,
1
SOR
ee
8
ST
mee
|g
el
exe
g
F
Ic1oz
FM
MPX
3
x
308
3
8
pomenennt
rT
Nae
DECODER
AF
AMP
g
i
ks
ain
Z
ONLY)
TA?343AP
I
.
2
=
ef
Goa
ate
:
:3
ANTENNA
=
é
Ls!
ey
La
NSS
ol
]
=
TERMINAL,
«
ie)
<
BE
p
REL.
IB
wou
Eaetacgrise
a
oer
seKH
peg
2
ia
|
|
or,
a
|
3
CH
OUT
>-—=j>—
1B)
(Gor
3
"ISK
1c101
|
a
M
PrN
sack
c.g
~
!
7
|
en
c.
E,K
SYST
ee
ml
ef»
LAI2Z65
3
|
bes
trig
Foo"
in
ial
r
x
4
+
L
CH
OUT
>=
~
Kiges:
al
oO
i
&
‘|
T
RI3l
RI3S
|
FM-EM
305
)
BS
ance)
4
6
a.
i
|
=
|
[
PING
;CONIG
8}-2)-8)H3)
4
7
%
5
1H
L-
?
ieee
|
4s
t
=
%
a0:
Mage
A
a
ae
a7
-
EOg@-O-O-9-O-O-O-E
8
2
i
EVEL]
(CEVEL]
[oq
a
8.
2
a
see)
[2ane
|S
"
en
2
flo
tet
u
r
oY
1
5
AM AM
}
DRIVE
|
Rabe
o
i
1p-p
2
osc
Ft
AM
wx]
Lie
LAME
Pas
Soin
o
r
ihe
|
|
316
ee
F
543
|
ae
g38
i
\
A
oe
TP GND
[aur]
|
[Res]
[am
ar
ago]
|
[eo
acu
EK
ONLY
5
|
=
r
[aa
SFR
I
|
a
SYSTEM
305)
a
i
S123
1/50
Terri:
oe
i
7
Ra
CO
i
2
5-2)
I-19
1)
419)
-+9)}419-
9)“
135
0.018(M)
©
a
‘
eet
ena
|
i
|
-
cxes320
ES
a)
sf
tA
of
5
ry
Sex
NSS]
|
R123
ci22
|
1OKB.
6
|
jaa
|
2.2750
S
i
f
FUNCTION
“ORONLY
tomeol
38
ey
BO
Ris
eee
Petal
Gow,
ys
=
yo
ote
<>
=>
—
|
3
OuTPYT
BUFFER
f
1
|
i
SYSTEM
305)|
13.7
:
x1
s00x
3!
|
s3ysof
10716
jar
ste
iaa|
Ae
S&S
q
|
vRsoi-i
8571
22K]
=
i=]
cm
|
FM
—
Toe
pa
~G=-
4
le
=
oe
[bs
ag
2
Rizs|
1@0K
|
|
MONO
|
clar
"2.2/5
i
i
}
f
t
aS
3
2
;
|
;
i
cae
oo
yls
2
ee
|
ly
ae
|
aa
=
r
BHTHEHSHOGHE
oe
mami
3
°
Bs
oe
%
x
Ea
Fi
ON
i
—
OFLZ
5
a
a
CHL
2
ane
3
|
ei
7
eg
=
aad
3\*
822223828
Sy.
4071
Rl
seal
<
3
|
a
cai
cre
s07s6)
450
5
ae
N
2
|
_
Nx
|
“
2
TPIOS{
GND)
“(8
1CS05
©
1/50
H
ie
a
ao
BH
es
D
C405}
a
a
A
a
‘
GND}
=
iGNO
:
=
|
zi
i
38
|
TAOS
URE
~
allée
7
+
i
‘
[MW
IF
ADJ.
ported
\
GND}
emma
SND)
—
s
|
jom<«RQRRS
+
S
=
eeulescr
FMIFOISCRI.
|
|
=
|
nore
8
{1
COCCHGS®
]
LHe}
ge
OY
A
Fool]
©
AMOSCIF,DETJ£
gj,
[
Sveo
Pow
eh
at
4
i
3
LAS
lciaz
$0
72193
age
O16
L
|
i
|
is
pore
ek
2
to
(CLOCK
FREQ?
=
AR
—p+
+
i
pe
ry
if
GND}
2
R597
4.71174)
He
Lit
oot
i
tr
2107
O
(aT
STE)
|
al
|
H
eae
i
i
1SS133
ae
+
AM
4
GND
|
|
|
|
i
Loop
fs
T
|
i
maa
=a
t
|
H
;
|
i
|
a
oo
male
a
|
,
i
TF
1
TAM
RE
i|
|
1c
506
ai
f
ry
MW
ANT
T
{i
pins
&
|
|
i
RETRACRRG
Riso
|
AMP.
eel
|
|
|
|
os
TC40518P
Lt
eons
A
714900!
7.2
R149
47
OPED,
Mw
ose
lt
|
'
|
+—{t
=T
Ww
193
i102
hl |
!
IVER
|
Or
ie
|
S
22
=
' i
DAs
gS
io
ze
'
|
ine
ne
-
ON
OOK
|
Feo
‘et
i]
bias
| |
+
lai
3
=
i
OTALLaYS
i
B.K.DET
led
2
|
21o_Kviago
[88
Wel
|
O14
Lays
1
atar
MUTE)!
|
T.BASE
See
ie
oi
|
i
|
cial
Si
aaa
’
ay
©
|
ap
iio
sore
|
St
Sx
|
7
i
|
bok
oo
Mie
:
|
j=
>
7
o104[
STZMONG
|
Z258
38
OK
==
Lio4
iw
osc
|
-317)
“
.
POWER
)
|
tb
fe
LIO3
SC
i
sm
1
9123
|
ee0
|
189133
|
CONT.
|
At;
Lw
oo
28¢2001K
oak
.
{
PROTECTION
CIRCUIT
|
ear:
=
ww
o.2Mw/Lw
58
|
Mwytw
|
2-5
|
ON/OFF
|
|
DRIVER
LK
/
a.
ee
>
—
ops
ee
Qi07
|
|
pata
|
r
v
r
cioa
S730
=f
7
|
i
:
cee
‘nsw
af
Sat
TT
\
orcia4es)
|
|
Q503
J5
|
i
i
1
PoE
eer
\
|
'
scaase
|
2
a7
—>
Fee
i
Nem
ose
+-
7
:
as
OAT
POW
OFF)
ij
+
A
1
r
'
mt
SUPROUND)
PW.CONT
i
i
T
2
RII?
20
es
i
|
H
|
ZN
ps4
'
S25
‘
Tet
ot
\7
7
[SPEAKERS
TU-MUT
|
-
Q104,
105
GING]
4.7750
[OK
Rg
190
”
|
otaT
AM)
i
i
|
atiyaw)
le
FB
ls
|
Nt
gat
se
i
3
PLL
Mir
AM
g
g
[9-3AT
FM)
i|
ve
RAG
:
Q503.504
oe
s
PINS
Be
LPF
+>
reo
: |
a5
i
jover
CURRENT]
|
$s
H
a
2.5
|
7
ey
Py
T.AMP
,
os
1
|
ag
Dleeessa
|
sis
Lig
yd
|
a
i
a
;
ee
23]
To
(3
7
|
.
ore
ar
®
H
i
gs
FRONT
CB
|
9103
aigarx
|
| i
3
Oma
|
|
FM/AM
<
x
|
AX,
rs35
|
|
PM+3
RiiS
&2k
=
=
x
ISO
Cae
i
103
zsaios6r
x
# 2
ad
Pais
126
'
o>
@
218
|
RITE
47K
Ae)
ats
ae
]
ae
MWe
oe
|
.
5
or
of
aes
FUNG-3
{
!
|
TIS
Big
|
x
Qe
mw
L
|
Sehr
27°
CLOCK
FREQ]
|
|
asia
RF
SE
el
|
|
FUNG-A
|
Ora
pares).
luwo
=
|
[ADs.
i
|
2eKi/2~
|
|
x
3}
7
i
i
eee
re
|
MW
id
!
OTHERS
92
DTCI44ES
i
A518
=
83%
2
|
gvrouk
|
CWiS4kHE
VY
|}
osaigipor
MW
LM
p)
|
“o.ezawis
BEF
2
|
CD.RMT.A
|
~
r
—
'
cO.RMT.8
|
@H
+
i
|
|
co.RMT.c
lo
+ +
\
|
<5)
|
a)
i
3
f
PING
Em
{
Q)
osc
sw
fe
r
f
i
=
|
'
rec.
|G
+
$—>——)
gee.
2
i
;
:
zg
,
:
4
|
Yy
TAG
an:
oa
\ = 3
pt
+
¢
veo
2
OH
in
>
—O
seen
+,
VOLTAGE
CONST.
yOu
NST.
8
o-GND
|
(ajome
Li
GND
E\
main
c.8
—-
nena
:
i
Bi
|
a
F
|
Bh
R562
100
|
esisse
0510]
O51
25a6es
Cs
OE
+30
|
13
'
|
(DECK
SECTION}
Fe
%
|
|
2961384
QS5i2I
st
|
GH
mM
j
7
&2)
i
$502
i t
FL
DISPLAY
|
sporsy
|
@)}
+
(@)
DOLaY
sw
Qsi
ce
o
SPLA
-
|
,
VOLTAGE
CONST
fH
Power
Co
A
CX-S770,2
Looe
rad
T
|
Q512
CPU,VOLTAGE
CONST.
=
Ae
aR
—
BAY
2:
|
|
5
0/60Hz
;
aso
|
@
—
neND!
oy
xe
woe
ONS
a.
ce
Meee
cost
Q513
:
B
osien
sig
| i
Ox-S770
K
|
unmet
|@
|
Ae
SOS:
ONES
oh
at
ee
aabtre
LPGOSD
«4
|
i
AC
2a0y
|
ri
5
|
:
.
50/60H2
LINER
|
G}
E
|,
ONE
|
Nea
baad
Qsi4
fs
_
DLs
sist
i
sso
1
@
SMALL.
SIGNAL
wee
mB
j
i
{CX-S770
Z
ONLY)
|
GETR
B
BUFFER.
LINEAR
CIRCUIT
VOLTAGE
es
Ria
8
=
|
SR
cert
(OMe
AMP.
2563
CONST
Be
vg
g
|
Et
F
£2
a
|
PING
rt
T
.
;
TUNER
on
=
G
VOLTAGE
=
2801384
L
ac
|G
|
CONST
Zon
Set
ga7
|
Re
F/
8e)
]
8s
Fs
SoaRscKsteoronN
eno
ee
|
S.CONT(SYSTEM 305
ERROR DET 516 esca4sP }
ONLY }
SE A TANS
_:
The
shaded
section
is
not
applied
to
the
model
of
SYSTEM
305
15 16

WIR ING-—2 (CX-S770E, K, Z, SYSTEM 305)
1
(4 SWITCH C.B J4 [PHONES
To &
DECK-ic.B| 5
PIN II
2 3
fa JACK C.B
fa LED CB
LIGHT To
LED904 LEDS05 (LOGIC CB
(DECK 2) (ORCK |) Car 12
To EY} 9
FRONT CB
PIN2 |7
5
LEO 9O!
DOLBY NR
OLRECTION
LED 902 LED903
> 4
PLAY REV PLAY
SYNCHRO DUBBING
sail sai2 5
NORMAL] [HIGH
SPEEO | |SPEED! 13
To B
C.B FRONT cB!
rarity SS fe,
CON iI
CI50
C322-R338
RED 41
WHT:
3
HT
WHT
IT 49
WHT:
<WHTMY II |
|
|<WHTY13
(WHT:
ONLY
BLK
X-770 ONLY
aN
SYSTEM 305
7
*
'
1
i
i
{
i
1
1
t
i
'
i
i
1
i
1
‘
1
)
i
dene nw esd
~S77O0
Z ONLY)
WHT 4 5
WHT: |
To
WHT>|7 | OECK-2 C.8
PINIO
<WH carla
12 13
IB) FRONT END C.B (CX~S770,£,K,SYSTEM 305)
FRONT END Z C.B(CX~S770, Z )
J
ra
14
ANTENNA
AM
LOOP
FM75Q
(CX -S770,E,K
=__| system3os
ONLY }
L-TYPE
>, CABLE
Porte
ee
(LEVEL | ee C]
FM752
Ji
C0 |} (SYSTEM305 ONLY?)
i-l J
J5(L-CH )
(SURROUND |
SPEAKERS |
J6(R-CH )
(CX-S770 ONLY)
2
F-™T(CX-S 770
paren pie 47 ONLY
[SPEAKERS]
N
se)
N
ZONLY)
ot
C 587
(CX-S770
C588
(CX-S770
ZONLY)
(Cx-S7 7
18
(CX-S$776
Fe
} f
or
C584
(CX-S770
Z ONLY)
+
C583
{CX-S770 Z sO

WIRING—3 (CX-S770E, K, Z, SYSTEM 305)
[r= --90
{ | 2
E}] FRONT C.B
CX-S770
| 3
SWii SWi2 SW3
TIME/FREQUENCY DISPLAY |
FL
SPECTRUM ANALYZER
LED21 LEDI6 LED LED6
S 5 5 5 5
LED25 LED20 LED!5 LEDIO
[| FUNCTION
zZ< [
s 1 (Cx-$770 ONLY) [CO AUX
(SYSTEM305 ONLY)| AUX cD LED28
[23 LED26 LED27
CON4 sw4 sw5
To MAIN C.8 VOL INOICATOR
PING Gaacl
> (max
UF & a ¥ DOWN
er LEO3! LED30
swa
LEO32~ LED36 F
LED!
5
LEDS
VOLUME
19
LED29
Sw7
REMOTE SENSOR
D751
TUNING/TIMER
SWi3 SWI4
LL.
8
g
10
iZ
(2
PRESET
STATION
er
[Memory] [8] [7] 5
Swis sWié sWi7 swig swig sw20 sW2t = swa2
sce]
SLEEP
|[TIMER
|
[EVERY
]
[ONCE]
[TIME/FREQ
t
sw24
swes
LSTANDBY|
swo7
sw2s
swes
sw26
ON
Lo R
[BALANCE |
YRE
SBAND GRAPHIC EQUALIZER
l
rs
[roKHz] [SSkdz] [ieee [ss0nz] - [7oHz] =
VRS VR4 VR3 VR2 VRI ar
atte i aac 7 =
i _sw3_! sw3_ | swe
|[CONT.PLAY]; [CBRS ] | [DOLBY NR]
| i
|. ON ' ON | © ON
See ae
t 1
i 1 ofr $0 oF 1 01 oFF
ee teeta her ae 3
(ere) CR S720)
305 ONLY. ONLY /
20
SW30
STEREO «—» MONO
SW10
POWER
cb STANDBY/ON |
ON
OFF

SCHEMATIC DIAGRAM-—4 (CX-S770E, K, Z, SYSTEM 305)
[5}
FRONT
C.B
CONS
.
+3m
D-6ND
Fshetattataatel
SE
eee
B
etetaatatatatatates
Br
ataatel
©
etatetatetetatetaled
6
cedatates
0
tatalatatetebetatatel
Ft
tatatetatatataned
2)
|
8.K.DET.
T.BASE
8
To
ST/MONO | FY MAIN C.B
~ em PINS
5.5 (STEREO :0)
Re8O 1K
~27 (STEREO: 5.8)
Cx>S770
£,Z Mi
SYSTEM 305
ONLY
085 ose
1SSI33 ISSI33,
a ia
=e
=e
Sw24 sw27
| 2
)
sw23 isi
Se -
swis swi4 swi3
jc ee S|
I
9852
‘9.4(POWER
OFF)
DTA143ES
(7x)
PW-CONT
411.2 (POWER ON.
5.S (TUNE: 0}
OUTPUT CONTROLLER
x)
wil y 10851 uPD-7528-AcU- 204
i
=z
H
‘
D
x
SUEVERY
ON)
§T/MO
;
Se
5
~~
__
SMONCE
ON)
sage
(as) 2eze
} swig (HEH?) 3 + BIM)
|
ane
=
2
MAIN
C.B
2 ee PIN2
fUNc-B
FUNG-A
&VR DTA
D860
188133
€VR
CLK
&R STB
@ RMT A
i @ RMT 8B
i
@
RMT
C
i
[swe
LeD26]
sw5,
LED27
3
} ea N
SYSTEM3OSOMY| aux | co _| 96
g&
REMOTE CONTROL
ADJ.
!
1
L751
5.7mH
R753
100
ei 1c72!
R705
100
SPECTRUM
x
D)
)
;
@
ANALYZER
?
i
a
j
@
: &
:
©
i
@
ae: s
; G77! 47/16 (0) | To
8 MAIN C.
1
©
O-Ox,,,
215
(3)
|
So.BY
Aamain
.
i 7 AROS 85 g 8 772 47/16 ®| 4x0
t 100
:
IC701
LA3600
&
s
@|
xa
1c701
5
()
|
Asno
GEQ.
0:03
D761
~
D767
LED26~36
Pr
LC6543H-3333
ississ
ag
0767
|
TL6208
x11
@
June
VRI
~
VRS
C
|
o
IC751_LA7224 ©
g REMOTE
g
CONTROL
ra
@
4 nie 9 a RF AMP. ATG} ee Oo
: 5558 is 2 R762
i ie slve"| R763 pn |
[|
vae-a
|
2
v
heh
AB
|
|
|
x
|
|
|
|
8
IC731
~
I¢735
ce)
GREE
ONT
ST
eSa
TEM
eo
ees)
c7o1 SPECTRUME. R766 r
regi fin ANALYZER wer f—ywloeke |
INDICATOR
n768
bay
KL
|
¢
‘
fvmes
|
|
owes
[|
vos
|
[iver
[|
ones
we
fete
4
"
Fi
‘
Fay
100K
I
0761
5
Ry
i
8
23
3
.
Tn
100K
|
DTAtlay
a}
is
:
=
Bs
56
5
[eines
0761-762
~
i
INVERTER
bd
2
;
RT72_
100K
5
TT
com
!
H
2
Os
:
R
©}
Amasn
c.8
|
:
Le
S
r0761
=
Se
om
er
2
EE
pin
4
i
1c702
LA3600
ik
g
REMOTE
CONTROL.
§
3
| ie our” Wes 2 § FUNCTION. g
i
H
ELECTRIC
VOLUME
&
H CONTROL SIGNAL 8
i
H
H
iR74I
LEDISi
ae z
SPECTRUM ANALYZER
The shaded section is not ajpf ied to the
model of SYSTEM 305
22
21

ADJUSTMENT (CX-S770E, K, Z, SYSTEM 305)
[L]FRONT END Z CB
(CX~-S770Z)
[D] FRONT END CB
(CX —ST70E,K,SYSTEM305)
coni3 [— (——] con14
1. Clock Frequency Adjustment
Settings : * Test point : TP 103
* Adjustment location: TC 102
Method : Set to MW 1611kHz and adjust so that
the test point becomes 2061kHz + 10Hz.
2. MW VT Adjustment
Settings : + Test point : TP 106
+ Adjustment location: L102
Method : Set to MW 522kHz and adjust so that
the test point becomes 1.0 + 0.05V.
3. LW VT Adjustment
Settings : + Test point : TP 106
¢ Adjustment location: L104
Method : Set to LW 144kHz and adjust so that
the test point becomes 1.5 + 0.05V.
4. AM IF Adjustment
L105 se ee eee eee eee eee ee A50kKHZ
5. MW Tracking Adjustment
LIOL eee eee eee ee eee eee se ENZKHZ
TCIOL seer eee ene ene eee [40 4kHz
2o0
3
8
H@
P1038
Srs cit 1c103
22 [(@ ve
BSS O| TP104 @) TP105
ao -~ 1102 1c102
a aaorssea revo (Q) ©
|
[2]
Q
CFio1
:
Se © o
2°46
Z 1 SFRI01
(€X-S770Z ONLY) _& P1024 ©]
Za
Qo G
wu
N L
(18)
R SFR1 |
© ©=
(C301 SEE 8
32
|
ewe
¢
Ic305
L305
=
[| TP302 (R)
TP303 (GND)
TP305
CS TWH os
Method
Set to FM 108MHz and adjust so that the test
point becomes 15.0 + 0.05V.
8. FM Tracking Adjustment
TC251, TC252 ++ e222 ee ee e 108MHz
(CX-S770 E,K,SYSTEM 305)
TC 251, TC 252, TC 253 (CX-S770,Z)
L251, L252, L253, L254. L255 +©+** 87.5MHz
(CX-S770 E,.K,SYSTEM 305)
L251, L252. L253, L254, L255
(CX-S770.Z)
9. DC Balance*MONO Distortion Adjustment
Settings : + Test point : TP 101 (DC balance)
TP102 (Distortion)
* Adjustment location : L 3 (DC balance)
L 4 (Distortion)
Set to FM 98MHz and adjust L 3 so that
TP101 output becomes 0 + 0.02V.
Next, adjust L 4 so that the distortion becomes
minimum (less than 0.3%). Adjust L3, L4 again
so that both adjustment satisfy either standard.
Method
10. MPX VCO Adjustment
SFR901 (D2) SFR902 (D2)
SFR903 (D1) SFR904 (Dt)
Adjust so that the distortion becomes minimum
(less than 0.6%)
Method
12. Normal Speed Adjustment (DECK-1, DICK- 2)
Settings : + Test tape: TTA-111S
* Test point: TP 301
* Adjustment location: SFR904 (DECK-1)
SFR902 (DECK- 2)
Method : Play back the test tape, adjust for 3000 Hz.
13. High Speed Adjustment (DECK-1, DECK- 2)
Settings : + Test tape: TTA-111H
* Test point : TP301
« Adjustment location SF R903 (DECK-1)
SFR901 (DECK- 2)
P lay back the test tape, and make the high speed
condition to be shorted between TP 304 (LOGIC
C.B) and GND.
Adjust for 3000Hz.
Method
14. Head Azimuth Adjustment (DECK-1, DECK- 2)
Settings : * Test tare: TTA-3I7E
¢ Test point : TP 301
¢ Adjustment location : Head azimuth adjustment
Settings : + Test point : TP 104
; i
+
Adjustment
location:
SFR101
screw
6.
renee
lad
Sanaa
sackneaks.
farovns
Method
Set
to
FM
98MHz
and
adjust
so
that
the
freque-
Method
P
tay
back
a
tani
a
of
the
test
tape,
and
oa
acy
at
test
point
becomes
38kHz
+
50Hz.
adjust
so
that
the
output
becomes
maximum,
TC103
eoceee
eee
ee
ee ee
©
POGNKHZ
(DECK-
2)
7.
FM
VT
Adjustaent
11.
STEREO
Distortion
Adjustment
Note:
Perform
on
each
FWD
PLAY
and
REV
PLAY
are
Pena
Settings
:
+
Test
point
:
TP
102
node.
Settings
:
*
Test
point
:
TP
106
-
FMM
SW:
STEREO
+
Adjustment
location
:
L257(CX-S$770
E,
i
icshcacteanine
K.SYSTEM
305)
*
Adjustment
location:
L256
(CX-S770
E,
L258
(CX-S$770,Z)
Sele
See
iui
ag
L257
(CX-S770,Z)
2
23
SFR4 SFR3
©) IC303 ©)
©)
©)
|
PENS
see
P
HEAD
R/P/E
HEAD
1P301
(L)
[1]
DECK-2
CB
(DECK
1)
(DECK
2)

i
{
|
|
i
i
15. PB Sensitivity Adjustment (DECK-!, DECK-2)
Settings : * Test tape: TTA-161
¢ Test point : TP 301 (Lech)
TP 302 (Reh)
* Dolby NR switch: OF F
¢ Adjustment location: SFR1i (DECK-1, Lech)
SFR2 (DECK-1, Rch)
SFR3 (DECK-2, Lech)
SFR4 (DECK- 2, Rch)
Method Play back the test tape, and adjust so that.
the output becomes 390aV + 20mV.
16. BIAS OSC Frequency Adjustment
Settings : * Test tare: TTA-1L19K
* Test point : TP 305
* FUNCTION SW: AUX
* OSC SW: OFF
+ Adjustment location : L305
Method Adjust so that the output frequency becomes
85kHz + ILkHz.
17. REC/PB Sensitivity Adjustment (DECK- 2)
Settings : * Test tare: TTA-1L19K
« Test point : TP 301 (Lch)
TP302 (Rech)
* Dolby NR switch : OF F
* Adjustment location: SFR5 (DECK-2 Lech)
SFR6 (DECK-2 Rch)
Set the DECK in the REC mode and adjust ATT
so that the 400 Hz signal output is 280 eV.
Record the 400 Hz signal, then play back
the recorded tape, and adjust so that the output
becomes 280e8V + a dB.
Method
18. REC/PB Frequency Response Adjustment (DECK- 2)
Settings : * Test tane TTA-119K
* Test point : TP 301 (Lech)
TP 302 (Rch)
¢ Dolby NR switch: OF F
+ Adjustment location: SFR7 (Lech)
SFR8 (Rech)
FRONT C.B
Method
19. Remote Control Adjustment
Settings: + Test point: IC751 pin3.
Set the DECK-2 in the REC mode and adjust
ATT so that the 1kHz signal output is 28mV at
TP 301 (TP 302). Record the | kHz and
10kHzsignals, then play back the recorded tape and
adjust so that the output difference between LkHz
and 10kHz becomes 0dB + a dB.
* Input signal: 37.917+0.05kHz, — 110dB
* Adjustment location: L751
Method : Input 37.9172+0.0 SkHz signal to IC 751 pin7 and
adjust so that the output at [C751 pin3 becomes maxinun.
PRACTICAL SERVICE FIGURE
(TUNER section)
<FM section>
IHF sensitivity :
S/N 50dB sensitivity :
IF Frequency :
Stereo Distortion :
Stereo Separation :
Less than 16dB
(THD 3%, 3002, 98MHz)
36 + 6dB (98MHz)
10.7MHz
Less than 1% (98MHz)
More than 27dB (98MHz)
<MW section>
Sensitivity : 52 + $dB (999kHz)
(S/N 20dB)
IF Frequency : 450kHz
<LW section>
Sensitivity : 63 + 4dB (200kHz)
(CASSETTE DECK section)
PB output level :
25
3.2 + 0.6V
(TTA-161, SPEAKER OUT)
REC/PB output :
RECYPB SVN ratio:
Distortion (REC/PB) :
Erasing ratio :
Channel separation :
Recording bias frequency :
Noise (PB) :
(DUMMY CASSETTE)
Wow & flutter :
Pinch roller pressure :
WAVE
1c85!
@ Pin
4-0
2—-
@ Pin
4—>
2
om
1c 76
FORM
2.8V
2.2V
266KHz
1.6us 2.2us
.2us 1.6us
Sv
40 Krz
© Pin
64V 2.8V
ov
|. 93MHz
Sus
IC 751
@Pin
lOmv (10:1)
2.0V + 2dB (LINE)
More than 357 42dB
(Unweishted, NORM. Tape
DOLBY-NR B OFF/ON)
More than 40/5 1dB
(Weighted, NORM. Tape
DOLBY-NR B OFF/ON)
Less than 3% (NORM.)
More than 57dB (at 125 Hz)
More than 28dB
8 5kHz
Less than 4007/7 100aV
(NORM. Tape, Unweighted
DOLBY-NR B OFF /ON)
Less than 1507 80aV
(METAL Tape, Unweighted
DOLBY-NR OFF/ON)
Less than 0.09% (DECKI,
290 + 30s (DECKI1, 2)
(2.84 + 0.3N)
x x
«(NO GOOO0) {NO GOOD)
Take-up torque : 45 + 15s-cn(DECKI, 2)
(0.44 + 0.15aN -m)
110 + §9s-m (DECK1.2)
(1.01 + 9-49 aNew)
F.F & REW torque :
Back tension : 3 +? g-cn (F WD./REV.)
(DECK1, 2)
(0.03 + 8-8 aN-m)
METAL TTA-119MP
NORMAL TT A-119K
Test tape :
2)
26

IC DESCRIPTION (CX-S770E, K, Z, SYSTEM 305)
1. 1C,LC6543H- 3333
1-1 Terminal name
IC,LC6543H — 3333
POWER — CONTROL
DATAS
DATA4
DATA3
DATA2
FUNCTION SW-A DATAI
FUNCTION SW-B DATAO
FUNCTION SW-C -K SCANT
TUNER CONTROL—A “K SCAN2,
TUNER CONTROL —B DISP—1
TUNER CONTROL—C: OISP—O
CD CONTROL—A RESET
CD CONTROL ~8 VSS
CD CONTROL -C TEST
osc-2 osc-1
The arrow at each pin shows signal in/out
1-2 Terminal Description
Oe
1 REMOTE Remote control serial data input.
ee ee The input timing of serial data follows that of IC, LC7461M.
| 2 | Yoo | Porters —“CsCSCisdC
ee ea Outputs the control signal (DATA) to vary the sound volume using the electronic volume
DATA IC, TC9176P. The output timing follows that of IC, TC9176P.
E VR- Outputs the control signal (CLOCK) to vary the sound volume using the electronic volume
E VR- Outputs the strobe signal (STROBE) to vary the sound volume using the electronic volume
eee | IC, TC9176P. The output timing follows that of IC, TC9176P.
FUNCTION Output the control signals to switch the input signals according to the function
SW-A designated by the remote control, key and signal inputs.
FUNCTION
SW-B
FUNCTION
Sw-c
AUX (CX-S770) ,CD (SYSTEM305)
CD(CX-S770) , AUX (SYSTEM305)
TAPE
TUNER
CONTROL-A
TUNER (ae Sa a
CONTROL—B
: a
CONeHPE =e Pi welt ee |
A
rover ovore | a _| 1 | a]
Pruning vow [Lf # | #_|
27
No.
cD Output the CD control signals according to the remote control and signal inputs.
CONTROL-A | (CX-S770 ONLY)
roy bo
CD cD CONTROL OUT
CONTROL-8 Ha as
cD PROGRAM L
CONTROL-C
aa
ss
ruveuse [a]
OSCc-2 Clock oscillation terminals
OSC-1 Clock frequency : 2MHz
TEST LSI test terminal Generally connected to Vss
KEY
SIGNAL
IN
LED
DATA
OUT
K
SCAN
0
is|]
K
SCAN
1
is
DISP
O
is
DISP
1
is
ome
ed
bad
is
ay”
ae
Gad
DISP-O
DISPLAY
SCAN
outputs
for
DATA
0
-
5.
=__
DISP-1
“H”
when
reset
K
SCAN
O
KEY
SCAN
outputs
for
DATA
0
-
5.
DATA
0
—-
|
=—
|
VR-
INDICATOR
VR-INDICATOR
-76dB
INDICATOR
-48dB
INDICATOR
-24dB
INDICATOR
DATA
9
_
—
|
VR-DOWN
VR-
INDICATOR
KEY
INPUT
a
-14dB
INDICATOR
DATA
3
VR-UP
PHONO
FUNCTION
VR-
INDICATOR
KEY
INPUT
-8dB
INDICATOR
DATA
4
AUTO
TUNER
AUX
FUNCTION
VR-
INDICATOR
PLAY
SIGNAL
INPUT
-4dB
INDICATOR
DATA
5
CD
KEY
INPUT
TIMER
CD
PLAY
SIGNAL
CD
FUNCTION
VR-
INDICATOR
INPUT
OdB
INDICATOR
POWER-
POWER
ON/OFF
signal
input
ww ae oe ee
- Oo olfoalalaun
te to to wo
_ [op ol -
to to wo @
(e)
(eo)
28

2. 1C.wPD7528ACU- 204
2-1 Terminal name
MPCT528ACU-204
2-2 Terminal Description
P i : ‘
No.
RESET Reset input. The "H” pulse resets the microprocessor.
2 CcCLil
3 CL2
V PRE Negative power supply for the output predriver. Connected to GND.
V ROAD Negative power supply for the output driver load resistor.
K3
K2
K1
KO
EVERY
ONCE
Clock oscillation pins of the microprocessor. (approx. 400Hz)
ei
Key watrix inputs
”H” during TIMER ON
SD Auto stop signal input. The unit stops at ”L” level.
14 A
15 B
16 Cc
7
ee ee
mem fe | Re Re Ooowo]
ay Ni rr ©
Remote control inputs supplied from 450761-433S.
29
|
;
i
:

Pin : 4 Fs
18 CE
19
DATA
Outputs
a
signal
momentarily
when
any
key
is
operated,
supplied
to
LC7217.
20
CLK
22
Sa
"
23
31 D3
32 D2
33 Di
34 D4
35 DS
36 D6
Oe eee ol
[as | Pp srk | Pover failure detection input. The unit enters the backup mode at ”L”
p39 [torn | conmected to
eG eee eee ee
Frequency display and clock time digit signal outputs.
Active "H”
Frequency display and clock time segment outputs and key matrix outputs.
Active ”H”
3. 1C,LC7217
3—1 Terminal nane
LC 7217
30