Troubleshooting Guide (mech)
1261-4721 Rev 3
Sony Mobile Communications AB
– Company Internal
12(62)
Problem Areas
1.4 Display
1.4.1 Graphics & Illumination
Check:
Check whether the phone vibrates after the Key On/Off has
been pressed.
Action:
If the activation described above is not detected, refer to
section 1.1 „Power‟.
Note: Ensure the BtB connector of battery is
disconnected in the following steps!
Check:
Inspect the both sides of the ZIF connector on the FPC
Bottom Flex and the LCD FPC of Cover Front Assy.
Action:
1. If not properly connected
– disconnect and reconnect.
2. If dirty or oxidized
– clean it.
Check:
Inspect the LCD.
Action:
1. If dirty
– clean it.
2. If the LCD or the LCD FPC is damaged
– replace the
Cover Front Assy.
Check:
Inspect the BtB connector of FPC Bottom Flex to the PBA.
Action:
1. If not properly connected
– disconnect and reconnect.
2. If dirty or oxidized
– clean the both sides of the BtB
connector.
