Table of Contents
Advertisement
5
Display/Illumination problems
•
Make a general visual inspection for corrosion or oxidation from liquid damage
according to point 1.2.
•
Turn the phone on. Check the LCD and the illumination. The illumination is lightened
when the phone starts and will continue for approximately 20 seconds if the
settings/Display/Light/Automatic is selected.
•
Turn the phone on. Go to service test menu; choose "1.Display". You should see a
pattern, check that no lines or pixels are missing, and that there is no discolouration. If
necessary replace the Main Display Assy.
•
If all segments are missing check that the LCD connector (Fig.5.1 & Fig.5.2) and Flex
film (BTB to FPC) (Fig 5.3) are not mechanical damaged, dirty or oxidized. Replace the
Upper PCB Assy (Fig 5.4) or Flex film (BTB to FPC) if necessary.
•
Turn the phone on. Go to service test menu; choose "2.LED/Illumination". The
illumination should start flashing~1Hz.
•
Check that all 16 Keypad LEDs have the same illumination strength.
•
Check that both Displays are lighting up properly. Replace the Upper PCB Assy or the
Main Display if necessary.
•
Check that the top led is flashing (red light).
If the failure still occurs, handle the unit according to the local company or the GSP
directives.
Note: When replacing the displays the contrast should be checked. If necessary, adjust the
4/00021-1/FEA 209 544/81 A
Sony Ericsson Mobile Communications AB
contrast in service settings menu. Remember to store the setting with"YES".
Fig.5.1
Fig 5.3
Trouble shooting Guide, SP/Mechanical
Fig.5.2
Fig 5.4
8(17)
Advertisement
Table of Contents
