Troubleshooting
5-3 No Sound
No Sound, but Picture is
in normal operation
NormalCheck the CN602 Abnormal
Connection and Signal
Check the SpeakerNormalCheck Abnormal
Wire Connection
14V Line
CheckCheck
IC602 #7AbnormalFA803S
(If the pin is in low state,
Sound is mute)
Normal
Check
D816, Q906
CheckAbnormal
IC601 #24, #25
Normal
Replace
IC602
Check
Abnormal
IC601 Input
Voltages (5V,8V)
Normal
Check
the coils around IC601
CheckAbnormal
IC601 Input Signal
Normal
ReplaceCheck
IC601the Tuner
5-3 |