5-7
Flow chart of trouble shooting
5-7 Key Data Input
Check Initial operation
Replace the PBA
Are
the pin 12, 13, 14 and 15
of J403 low?
When
one of the keys is pushed,
one of pin 12,13,14 and 15 of J403
is high ?
Key PCB is OK ?
Resolder pin 12,13,14 and 15
of J403
END
Replace the Key PCB
Yes
No
Yes
Yes
Yes
No
No
Summary of Contents for SGH-N100
Page 11: ...Exploded Views and Parts List 1 9 1 11 Desk Top Charger DESK TOP CHARGER GH44 00163A ...
Page 12: ...PCB Diagrams 2 PCB Diagrams 2 1 Main Top ...
Page 13: ...2 1 ...
Page 14: ...PCB Diagrams 2 1 Main Bottom ...
Page 15: ...2 2 ...