4. TROUBLE SHOOTING
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START Check of ear_jackcondition
A condition is good?
Replace J400
No
Yes
A condition is good?
FM_radio willwork properly
properlyCheck condition of matching
components
(TP1,2,3,4,5)
Check Bias Voltage
Give the additory solder in
(TP1,2,3,4,5)
No
START Check of earless_jackcondition
A condition is good?
Replace Rear Cover
No
Check condition of intenna
Check Bias Voltage
A condition is good?
Replace U100
No
Yes
Yes
Yes
Yes
Replace U100
No
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