Key Data Input - Samsung SGH-Q208 Service Manual

5-7. Key Data Input

Check initial operation
Check the connection between
CN202 and LCD module PCB
When one of the keys is
pushed, one of pin [2,4,6,8,10]
of CN202 is "High"?
When one of the keys is
pushed, one of pin [1,3,5,7,9] of
CN202 is "High"?
END
Y
Y
Y
Y
SAMSUNG Proprietary-Contents may change without notice
SGH-Q208 Flow Chart of Troubleshooting and Circuit Diagrams
Check the U601
N
Resloder CN202 or replace
N
5-7
the key PCB