3-34
ELECTRICAL TROUBLESHOOTING GUIDE
B
Check speaker cable connection.
Check IC600.
Check
IC700, IC701, IC704, IC705.
Check IC601, IC602.
Check SMPS.
Check Q701, Q702, Q703, Q704,
Q714, Q716, Q719, Q720.
Check IC600.
Check
IC702, IC703, IC706, IC708.
Check IC603, IC604.
Check SMPS.
Check Q704, Q705, Q708, Q709,
Q721, Q722, Q723, Q724.
Pin28, 29, 35, 36
of IC600, FL/FR± signal
OK?
Pin13 of
IC700, IC701, IC704, IC705
FL/FR audio signal
OK?
IC601, 602
FL/FR audio signal
OK?
±40 V, -28 V, ±5 V
power voltage OK?
Q700,
Q701, Q702, Q703
Q714, Q716, Q719, Q720
OK?
Pin26, 27, 31, 32
of IC600, SWL/SWR± signal
OK?
Pin13 of
IC702, IC703, IC706, IC708
SWL/SWR audio signal
OK?
IC603, 604
SWL/SWR audio signal
OK?
±40 V, -28 V, ±5 V
power voltage OK?
Q704,
Q705, Q708, Q709
Q721, Q722, Q723, Q724
OK?
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
OK
Содержание CM9550
Страница 15: ...2 2 ...
Страница 19: ...LED SUB LED MAIN A60L A61 A62 651 652 4 SPEAKER SECTION 4 1 FRONT SPEAKER NS9550F LEFT SPEAKER ...
Страница 20: ...LED SUB LED MAIN A60R A61 A62 651 652 FRONT SPEAKER NS9550F RIGHT SPEAKER ...
Страница 21: ...LED SUB LED MAIN A91 A90 952 952 A92 951 4 2 SUBWOOFER SPEAKER NS9550W ...
Страница 61: ...3 40 ...
Страница 81: ...3 79 3 80 3 MAIN P C BOARD TOP VIEW ...
Страница 82: ...3 81 3 82 4 MAIN P C BOARD BOTTOM VIEW ...
Страница 83: ...3 83 3 84 5 FRONT VOLUME MIC PORTABLE P C BOARD TOP VIEW ...
Страница 84: ...3 85 3 86 6 FRONT VOLUME MIC PORTABLE P C BOARD BOTTOM VIEW ...