3-30
ELECTRICAL TROUBLESHOOTING GUIDE
USB play
Replace IC303.
NO
IC303
USB power USB_5 V
OK?
YES
A
A
When insert USB,
IC501 pin U7, U8, A7, A8
USB_D signal OK?
NO
YES
YES
YES
YES
AUX
Check audio cable.
Replace IC200.
Check IC501.
NO
NO
NO
IC200
pin 3, 4 AUX input signal
OK?
IC200
pin18 ADC_data output signal
OK?
IC200
pin15, 16, 17 I2S input signal
OK?
NO AUDIO CHECK
Содержание CJ87
Страница 17: ...1 16 ...
Страница 19: ...2 2 ...
Страница 21: ...2 6 2 5 ...
Страница 23: ...2 8 A60 3 SPEAKER SECTION FRONT SPEAKER ...
Страница 65: ...3 36 3 SERVO IC401 X XI XO Fig 3 2 CD 16M IC401 pin31 Fig 3 1 Crystal 16 9344 MHz X400 11 10 12 10 11 12 ...
Страница 69: ...3 40 ...
Страница 73: ...3 47 3 48 PRINTED CIRCUIT BOARD DIAGRAMS 1 SMPS P C BOARD DIAGRAM TOP VIEW ...
Страница 75: ...3 51 3 52 2 MAIN P C BOARD DIAGRAM TOP VIEW ...
Страница 76: ...3 53 3 54 MAIN P C BOARD DIAGRAM BOTTOM VIEW ...
Страница 77: ...3 55 3 56 3 FRONT P C BOARD DIAGRAM TOP VIEW ...
Страница 78: ...3 57 3 58 FRONT P C BOARD DIAGRAM BOTTOM VIEW ...
Страница 79: ...3 59 3 60 4 JACK P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...