Trouble Shooting (mech)
1233-9027 Rev2
©
Sony Ericsson Mobile Communications AB – Company Internal
13(47)
Problem Areas
1.4 Touch
Screen
1.4.1 Touch
Screen
malfunction
Check:
Inspect the touch screen of the Front Cover Assembly.
Action:
1. If dirty – clean it.
2. If the touch screen of the Front Cover Assembly is
damaged – replace the Front Cover Assembly.
c
Check:
1. Start the phone, press Lock/onoff key again to put the
phone to sleep >1 minute (black screen)
2. Press Lock/onoff key to activate the phone and test the
Touch Screen by moving a finger across the screen and
start some of the applications.
Action:
If no response from Touch Screen, test with another front.
Check:
Inspect the ZIF connector of the Front Key FPC to the PBA
H2H Flex.
Action:
1. If not properly connected – disconnect and reconnect
2. If dirty or oxidized – clean both sides of the ZIF connector.