3-33
ELECTRICAL TROUBLESHOOTING GUIDE
A
YES
YES
YES
YES
YES
YES
YES
YES
YES
Check IC501.
Check IC600.
Replace IC600.
Check IC700 ~ IC705.
Check Q705 ~ Q708, Q711 ~ Q718.
Check speaker cable connection.
Check IC501.
Check IC206,IC207,IC208.
Check SMPS.
NO
NO
NO
NO
NO
NO
NO
NO
IC501
Pin82, 83, 84 I2S data output
signal OK?
IC600
Pin38,39,40,41,44,45,46,47,48,49
(FR,FL,RR,RL,SW1±)
signal OK?
IC600
PWM data output signal
OK?
Pin13 of
IC700 ~ IC705 Audio signal
OK?
Q705 ~ Q708,
Q711 ~ Q718
OK?
IC501
pin 85 I2S data signal
OK?
IC206,
IC207,IC208 audio signal
OK?
±62 V, -50 V,
-28 V, ±5 V power voltage
OK?
OK
Содержание CM9530
Страница 11: ...MEMO 1 10 ...
Страница 13: ...MEMO 2 2 ...
Страница 17: ...A60 A61A 651 652 653 653 4 SPEAKER SECTION 4 1 FRONT SPEAKER NS9530F ...
Страница 18: ...A91A 951 952 953 953 A90L 4 2 SUBWOOFER SPEAKER NS9530W LEFT SUBWOOFER ...
Страница 19: ...2 10 A91A 951 952 953 953 A90R SUBWOOFER SPEAKER NS9530W RIGHT SUBWOOFER ...
Страница 78: ...3 79 3 80 PRINTED CIRCUIT BOARD DIAGRAMS 1 SMPS P C BOARD TOP VIEW ...
Страница 80: ...3 83 3 84 2 MAIN P C BOARD TOP VIEW ...
Страница 81: ...3 85 3 86 MAIN P C BOARD BOTTOM VIEW ...
Страница 82: ...3 87 3 88 3 VOLUME P C BOARD TOP VIEW ...
Страница 83: ...3 89 3 90 VOLUME P C BOARD BOTTOM VIEW ...
Страница 84: ...3 91 3 92 4 VFD P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 85: ...3 93 3 94 5 MIC P C BOARD TOP VIEW BOTTOM VIEW 6 PORTABLE P C BOARD TOP VIEW BOTTOM VIEW ...