3-16
ONE POINT REPAIR GUIDE
6. AUDIO OUTPUT IS SMALL OR NO AUDIO OUTPUT
Audio signal output is small or not. when you power on the middle power mini system.
6-1. AMP IC (IC700 ~ IC702, IC800 ~ IC802)
6-1-1. Solution
Replace IC700 ~ IC702, IC800 ~ IC802 on MAIN board.
6-1-2. How to troubleshoot (Countermeasure)
1) Please check if this system is on bass blast mode.
C, RL and RR make sound only on bass blast mode.
2) Check the IC700 ~ IC702, IC800 ~ IC802 on your eyes.
3) Check the audio signal output check(pin13 of IC700 ~ IC702, IC800 ~ IC802).
First, check the PWM data input (pin3 of IC700 ~ IC702, IC800 ~ IC802)
4) If the audio signal output has no output, try to change IC which has no output.
5) Lastly, check speaker terminal (JK700).
6-1-3. Service hint (Any picture/ Remark)
< MAIN board top view >
IC700
IC700
IC802
IC802
IC801
IC801
IC800
IC800
IC702
IC702
IC701
IC701
Содержание CJ98
Страница 17: ...1 16 ...
Страница 19: ...2 2 ...
Страница 21: ...2 6 2 5 ...
Страница 23: ...2 8 A60L A60R 3 SPEAKER SECTION FRONT SPEAKER ...
Страница 66: ...3 37 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 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 5 LED CONNECTOR P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW BOTTOM VIEW ...