3-30
ELECTRICAL TROUBLESHOOTING GUIDE
CD FUNCTION
Check FFC cable
to CN404, CN405.
Is motor_open/ close OK?
(IC408 Pin6, 7)
Check IC408.
MON_MPD(CN404 Pin22)
about 180 mV?
Check IC501.
Check Loading motor.
Check IC501.
OPU driving
(Focusing & Tracking) OK?
Check OPU.
(Pick-up module)
Is motor impedance
about 12
Ω
?
IC407
Pin51, 52, 53 I2S output
signal OK?
Can
disc insert?
IC501
Pin N1, N2, N4 I2S input
signal OK?
Disc reading OK?
NO
NO
NO
NO
NO
NO
NO
NO
NO
IC407
RF & Servo signal
OK?
Focusing/
Tracking/ Sled signal
OK?
LOAD +, - OK?
YES
YES
YES
YES
YES
NO
YES
YES
YES
A
3. NO AUDIO PART
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 ...