Samsung SGH-i700 Service Manual page 15

SGH-I700 Flow Chart of Troubleshooting
8. Key Matrix Part
Check key initial operation
Yes
Check the pin 4, 5, 6, 7
of CN604 is "High"
Yes
When one of the main
keys is pushed, one of
pin 4, 5, 6, 7 of CN602
is "High"
Yes
When one of the side
keys is pushed, one of
pin 4, 5, 6, 7 of CN602
is "High"
Yes
END
SAM SU N G Pr opr i et ar y- C ont ent s m ay change w i t hout not i ce
This Document can not be used without Samsung's authorization
Check the
No
R646, R650, R651, R653
No
Replace the Main key PCB
No
Replace the Side key PCB
2-12