No Sound - Daewoo DTH-25G1FST/FSP/FS Service Manual

TROUBLE SHOOTING CHARTS

4. NO SOUND

Step Check Point
1 Check waveform
2 Check waveform
3 Check waveform P M 01 CO M P
4 Check RI,LI of PM 01
5 Check RO,LO of PM 01
6 Check SCL,SDA of PM 01
7 Check Rin,Lin of PM 01
8 Check #2 of I602
9 Vcc is 22V ?
10 Check sound output.
Condition
Yes
next step Replace RC125, Z205, I501
next step Replace I501
next step Check/replace QC602
next step Check/replace I601
next step Check/replace I601, IA01
next step Check/replace I601, I603
next step Check/replace I602, I603
next step Check/replace QC601
next step Check/replace D610, D814, R820, L811
M ax:5W +5W Replace I602

Rem ark
No