Key Data Input - Samsung SGH-Q105 Service Manual

5-7. Key Data Input

Check initial operation
Check the connection between
CN201 and LCD-Key PCB
When one of the keys is
pushed, one of pin [11:15] of
CN201 is "High"?
When one of the keys is
pushed, one of pin [6:10] of
CN201 is "High"?
END
Y
Y
Y
Y
SAMSUNG Proprietary-Contents may change without notice
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram
Check the U601
N
Resloder CN201 or replace
N
5-7
the key PCB