Jog Dial; Power On/Off Key - Sony Ericsson P910a Troubleshooting Manual, Mechanical

7.3

Jog Dial

•
Perform sections 1.1 (Liquid Damage) and 1.2 (Flashing) before proceeding
Troubleshooting Steps
1. If there is an issue with the jog dial, inspect the
connection between the jog dial and the circuit board
for damage, dirt, or oxidation. If there are signs of
dirt or oxidization on either half of the connection,
clean both parts. If the part of the connector that is
on the jog dial's flex film is damaged, replace the
jog dial. If the part of the connection that is on the
circuit board is damaged, send the unit to a location
approved to perform electrical repairs.
2. If there is an issue with the jog dial when it is pushed
backward, inward or rotated up or down, replace the
jog dial.
3. If there is an issue with the jog dial when it is pulled
forward, inspect the jog dial's switch on the circuit
board for damage, dirt, or oxidation. If the switch
shows signs of dirt or oxidization, clean it. If the
switch is damaged, send the unit to a location
approved to perform electrical repairs.
•
Refer to section 1.3 (Unrepairable at the Mechanical Level)
7.4

Power On/Off Key

If a problem is suspected with the power on/off key, refer to the "On/Off Problems" section for
instructions on evaluating the power on/off key and other possible causes of a unit not powering
on or off.
4/000 21-1/FEA 209 544/90 A
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Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
14(22)