SAM SU N G Proprietary-C ontents m ay change w ithout notice
SGH-I700 Flow Chart of Troubleshooting
2-
12
This Document can not be used without Samsung's authorization
8. Key Matrix Part
Check the pin 4, 5, 6, 7
of CN604 is "High"
Check key initial operation
When one of the main
keys is pushed, one of
pin 4, 5, 6, 7 of CN602
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
pin 4, 5, 6, 7 of CN602
is "High"
Yes
Replace the Side key PCB
No
