Trouble Shooting Guide
,
Mechanical
4/000 21-1/FEA 209 544/123 A
Company Internal
©
Sony Ericsson Mobile Communications AB
13(30)
5 Key
Problems
Problem Area
Items to Inspect
Repair Action
Inspection Reference
Inspect the area between the keypad
and the dome foil assembly where
the key is not functioning
•
If the keypad is damaged, replace it
If the issue is not resolved
!
•
Replace the dome foil assembly
Keypad:
A key on the
keypad is not
functioning or is
intermittent
If the issue is still not resolved
!
•
Send to a repair location allowed to
perform electrical repairs on this
product
Inspect the dome foil assembly to
circuit board connection
•
If the connector is improperly
connected - Reestablish proper
connection
•
If the connection is dirty – Clean
both halves of that connection
•
If dome foil assembly’s half of the
connection is damaged – replace the
dome foil assembly
•
If the half of the connection on the
circuit board is damaged – Send to a
repair location allowed to perform
electrical repairs on this product
If the issue is not resolved
!
•
Replace the dome foil assembly
Entire keypad or
a portion of the
keypad is not
functioning or is
intermittent
If the issue is still not resolved
!
•
Send to a repair location allowed to
perform electrical repairs on this
product
