3-15
ONE POINT REPAIR GUIDE
6. NO SOUND
There is no sound output in the CD FUNCTION, repair the set according to the follow-
ing guide.
6-1. IN THE CD FUNCTION
6-1-1. Solution
Please check and replace IC501, IC600 on MAIN board.
6-1-2. How to troubleshoot (Countermeasure)
1) Check CD_BCK, CD_LRCK, & CD_DATA signals from IC407 to IC501.
If no signal, check if the RF & servo signals from MD is entered to IC407.
Refer to the “No operation of MD” guide.
2) Check the following I2S signal flow.
< I2S audio signal Interface >
- MCS_BCK
: IC501_pin4
--> IC600_pin23
- MCS_LRCK
: IC501_pin5
--> IC600_pin22 (44.1 kHz)
- MCS_DATA_OUT
: IC501_pin85 --> IC600_pin24
- MCS_MCLK
: IC501_pin3
--> IC501_pin82
If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to
the IC is distorted or no signal, replace it with a new one.
3) Check if “Digital audio AMP block”.
6-1-3. Service hint (Any picture / Remark)
< Waveform of I2S audio interface signals >
LRCK / BCK / DATA(IC501 Pin83, 84, 85)
< I2S Signal Flow >
Содержание CM9530
Страница 11: ...MEMO 1 10 ...
Страница 13: ...MEMO 2 2 ...
Страница 17: ...A60 A61A 651 652 653 653 4 SPEAKER SECTION 4 1 FRONT SPEAKER NS9530F ...
Страница 18: ...A91A 951 952 953 953 A90L 4 2 SUBWOOFER SPEAKER NS9530W LEFT SUBWOOFER ...
Страница 19: ...2 10 A91A 951 952 953 953 A90R SUBWOOFER SPEAKER NS9530W RIGHT SUBWOOFER ...
Страница 78: ...3 79 3 80 PRINTED CIRCUIT BOARD DIAGRAMS 1 SMPS P C BOARD TOP VIEW ...
Страница 80: ...3 83 3 84 2 MAIN P C BOARD TOP VIEW ...
Страница 81: ...3 85 3 86 MAIN P C BOARD BOTTOM VIEW ...
Страница 82: ...3 87 3 88 3 VOLUME P C BOARD TOP VIEW ...
Страница 83: ...3 89 3 90 VOLUME P C BOARD BOTTOM VIEW ...
Страница 84: ...3 91 3 92 4 VFD P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 85: ...3 93 3 94 5 MIC P C BOARD TOP VIEW BOTTOM VIEW 6 PORTABLE P C BOARD TOP VIEW BOTTOM VIEW ...