Communications
Confidential 23 COM MD CC GRM T
J. Junggebauer
Version 1.0 July 2005
6.10 Display module faulty
Affected unit: Handset
Diagnosis code IRIS: 21100 (DISPLAY / PERFORMANCE / NO LETTERS)
21200 (DISPLAY / PERFORMANCE / LINE-/COLUMN ERROR)
23200 (DISPLAY / MECHANICAL DEFECT / DISPLAY BROKEN)
Repair level: Level 2.5
Components: Display module
Needed equipment: 50 watts soldering station Weller WTCP 50 or WS (D) 50,
Soldering tip FP7, small soldering tip
Working material: Flux Kester 952 S, scotch tape
Diagnosis:
Missing lines, columns, display does not work at all or display (LCD) broken.
Repair:
Adjust the soldering station to 370°C (only for WS(D) 50).
Insert board in testhousing case shell (see chapter 6.1).
Fix case shell in foam shape.
Get off faulty display by soldering the soldered joints and pulling the display foil as
described on the picture below.
Pictures are taken from G5000.
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