Samsung SGH-F860V, Руководство по обслуживанию

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Mobilchips
SGH-E860V Flow Chart of Troubleshooting
2- 11
2-1-6. Speaker Part
Check the connection
status of speaker module
to CN103(LCD PCB)
There is no sound from speaker
Are there any signal at
the C148,C149?
(LCD PCB)
reconnect speaker module to CN103
Replace the speaker module
END
No
Yes
Yes
The type of sound from the
speaker is Melody?
No
Yes
Yes
No
Yes
No
Are there any signal at
C157,C158?(LCD PCB)
Are there any signal at
C126,C127?(LCD PCB)
Are there any signal at
R350, R351?
Are there any signal at
C502, C506?
Check
U104
U110
Yes
No
Check
U108
U110
Check U401
Check
Main FPCB
connection
status
Yes
No
Check
U302
No