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Flow Chart of Troubleshooting
9-11
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z
Hands-Free Stereo Headset Working
Hands-free stereo
headset
NG
YES
Check IFC700 & R733
Button NG?
NO
Signal in L
702 = 1.8V?
MIC NG?
NO
YES
Change Main PBA
YES
NO
Change U712
Signal on
in L700,L70
1R731,R732?
SPK NG?
YES
YES
Check IFC700
NO
Signal on
in C613,
C614?
YES
Check U600 & neighb
oring circuits
NO
Change Main PBA
The End
NO
Summary of Contents for GT-B7320L
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