Key Working - Samsung SGH-I907 Service Manual

10-5. KEY Working

Press Key
Volume Key
NG ?
No
Camera Key
NG ?
No
OJ key NG?
No
Power Key NG?
YES
END
Yes
Yes
Yes
Yes
Key FPCB Breakdown?
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Yes
Key FPCB
Breakdown?
Yes
Camera Key
FPCB
Breakdown?
Yes
OJ Key
Breakdown?
Yes
No
10-19
Flow Chart of Troubleshooting
Change Key FPCB
Change Key FPCB
Change OJ Key
Change Key FPCB
Change LED