Display Problems - Sony Ericsson P910a Troubleshooting Manual, Mechanical

8 Display Problems

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Perform sections 1.1 (Liquid Damage) and 1.2 (Flashing) before proceeding
Troubleshooting Steps
1. If the information in the display does not reduce to
the visible display area when the flip is closed, check
the flip switch for dirt, oxidation, or damage. If the
flip switch is dirty or oxidized, clean it. If the flip
switch is damaged, send the unit to a location
approved to perform electrical repairs.
2. If the area indicated on the display does not
correspond to the location touched on the display,
calibrate the touch screen.
3. If the area indicated on the display still does not
correspond to the location touched on the display,
replace the display.
4. If the display is not functioning properly, check
whether the display is properly connected to the
circuit board. Also inspect the connection between
the display 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 display's flex film
is damaged, replace the display. 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.
5. If there are no signs of damage and the display still is
not functioning properly after the connection has
been cleaned, try replacing the display if it has not
already been replaced.
•
Refer to section 1.3 (Unrepairable at the Mechanical Level)
4/000 21-1/FEA 209 544/90 A
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Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
15(22)