Table of Contents
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5-7 Key Data Input
Check Initial operation
the pin 7, 8, 9 and 10
one of the keys is pushed,
one of pin 7, 8, 9 and 10 of CN211
5-12
Yes
Are
of CN211 low?
Yes
When
is high ?
Yes
Key PCB is OK ?
Yes
END
No
Replace the PBA
No
Resolder pin 7, 8, 9 and 10
of CN211
No
Replace the Key PCB
Flow chart of trouble shooting
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