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Troubleshooting
5-2 No Sound
5-2
Check if CN601 is inserted
Normal
Check IC665
output pins 2,4
Abnormal
Check IC665 input pin 3
Normal
Check IC665
mute pin 5
Normal
Check IC665
input pins 7,11
Abnormal
Check H005
input pin 18
Normal
Check IC601
output pins 56,57
Abnormal
Check IC601
input pin 25
Abnormal
Check IC103
output pin 10
Abnormal
Insert CN601
(Connector)
Normal
Check Speaker
Abnormal
Check F854 on
the SUB Board
Abnormal
Check the mute circuit
Normal
Check IC665
Abnormal
Check IC103
Normal
Check IC604
Normal
Check IC601
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