Display/Illumination Problems - Ericsson R320s Working Instruction

5 Display/Illumination Problems

•
Switch ON the telephone and check the display. If all the segments (characters) are missing,
check that the display contact surface on the board is free from dirt/ dust (Fig.1). If
necessary clean it. Check the display elastomer for dirt/mechanical damage (Fig 2). If
necessary replace it according to the working instructions. If the fault still remains, replace
the display according to the working instructions.
•
If some of the segments (characters) are missing, or the contrast is bad, replace the display
according to the working instructions.
•
Make a general visual inspection for oxidation or corrosion from liquid damage. No action
is taken for liquid damaged telephone. Send the unit on according to the local company
directives.
•
If the fault still remains send the unit on according to the local company directives.
4/00021-1/FEA 209 544/21 C
Fig.1
Trouble Shooting Guide, Mechanical
Fig.2
6(13)