Sony C2104 - Display; Graphics & Illumination

Troubleshooting Guide (mech)
1273-2281 Rev2
 Sony Mobile Communications AB –
Company Internal
11(48)
Problem Areas
1.4 Display
1.4.1 Graphics & Illumination
Check:
Check whether the phone vibrates after the on/off key has
been pressed.
Action:
If the activation described above is not detected, refer to
section 1.1 ‘Power’.
Check:
Inspect the BtB connector of the LCM to the main PBA.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean it.
3. If the display or the LCM FPC is damaged – replace the
Front Housing LCM TP Assembly
4. Replace Main PBA.
Note: Calibrate the Touch Panel/P-sensor/L-sensor 1275-0758
Trouble Shooting Application – mechanical.