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Checking Flow
Start
INT-FM or EXT-FM
Check a condition of Ear Jack connector
soldering (J501) for Ext-FM-ANT
A condition is Good ?
YES
Check a condition of FM tuner
Matching component (TP5,6,7)
A condition is Good ?
YES
Check a condition of power supply
points(TP1,2,3) ; Reasonable range(3.1V >
TP1,2,3 > 2.7V)
A condition is Good ?
YES
B
NO
A
INT FM
NO
Replace the J501
NO
Give the auditory solder in
TP5,6,7
FM_Radio working is
good ?
Finish
NO
Replace PCB
72
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