SAMSUNG SGH-Q100
Service Manual

SGH-Q100 Flow Chart of Troubleshooting and Circuit Diagram

5-7. Key Data Input
Check initial operation Y Check the connection between CN201 and LCD-Key PCB Y

When one of the keys is pushed, one of pin [11:15] of CN201 is �High�?

N

Check the U601

Y

When one of the keys is pushed, one of pin [6:10] of CN201 is �High�

N

Resloder CN201 or replace the key PCB

Y END

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