Illumination Problems; Keypad Illumination: The Entire Keypad Will Not Illuminate; Keypad Illumination: A Portion Of The Keypad Does Not Illuminate - Sony Ericsson W880i Troubleshooting Manual

7 Illumination Problems

Problem Area Items to Inspect
Keypad Before proceeding !
Illumination:
Inspect both halves of the dome foil
The entire
assembly to circuit board connection
keypad will not
illuminate
If the issue has not been resolved !
If the issue has not been resolved !
Keypad Perform the following action !
Illumination: A
portion of the
keypad does not
illuminate
If the issue has not been resolved !
4/000 21-1/FEA 209 544/123 A
©
Company Internal Sony Ericsson Mobile Communications AB
Repair Action
•
Perform a setting reset
•
If dirty or oxidized – Clean both
halves of the connection
•
If the portion of the connection on
the dome foil assembly is damaged -
Replace the dome foil assembly
•
If the portion of the connection on
the circuit board is damaged – Send
to a repair location allowed to
perform electrical repairs on this
product
•
Replace the dome foil assembly, if it
has not been replaced
•
Send to a repair location allowed to
perform electrical repairs on this
product
•
Replace the dome foil assembly
•
Send to a repair location allowed to
perform electrical repairs on this
product
Trouble Shooting Guide, Mechanical
Inspection Reference
18(30)