Composite Analogy Audio Trouble Service Flow Chart - Daewoo DN-W551 Service Manual

3.5 Composite Analogy Audio Trouble Service Flow Chart

Composite Analogy Audio Trouble
Check CP3 Signal
Check Q18/Q19/Q20/Q21
/Q25/Q26
Check U11/U13/U14 [Pin4(-12V), NG
Pin8(+12V)]
Check U16(Pin19/20/23/24)
26/27)
Check U2(Pin 163/164/165) NG
Daewoo DN-W551 Service Manual
NG
OK
NG
Replace Q18/Q19/Q20/Q21
/Q25/Q26
OK
OK
NG
OK
27
Replace CP3
Replace U11/U13/U14
Replace U16
Replace U2