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SGH-I700 Flow Chart of Troubleshooting
2-12
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8. Key Matrix Part
Checkthepin4,5,6,7
of CN604 is "High"
Check key initial operation
When one of the main
keys is pushed, one of
pin4,5,6,7ofCN602
is "High"
Check the
R646, R650, R651, R653
Replace the Main key PCB
END
No
Yes
Yes
No
Yes
When one of the side
keys is pushed, one of
pin4,5,6,7ofCN602
is "High"
Yes
Replace the Side key PCB
No