3-31
ELECTRICAL TROUBLESHOOTING GUIDE
USB play
Replace IC300.
NO
IC300
USB power +5 VU
OK?
YES
A
A
When insert USB,
IC501 PinU7, U8, A7, A8 USB_D
signal OK?
NO
YES
YES
YES
YES
AUX
Check audio cable.
Replace IC202.
Check IC501.
NO
NO
NO
IC202
Pin7, 8 AUX input signal
OK?
IC202 Pin41
ADC/MIC_data output signal
OK?
IC202
Pin42, 43, 44 I2S input signal
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 ...