Image On Display Not Correct - Nokia NHL-2NA Series Troubleshooting Instructions

NHL-2NA

Image on display not correct

Image on the display can be corrupted or part of the image can be missing. If part of
image is missing change the UI module. If the image is otherwise corrupted, follow the
path below.
Part of display
image corrupted
Change contrast and
insert picture with
display test. Is image
OK?
No
Check the UI
connectors and LCD
connector from the top of
the module, both male and
female. Are they
OK?
Yes
Check
signals from MJS-9Q
PWB2 pins 3-5, 8-10,
25-27 and 30. Is there
activity?
Yes
Check
EMI filters
visually. Are
they OK?
Yes
Change UPP
WD2 and retest.
OK?
Yes
Change UI
module and
retest. OK?
No
Beyond
economical repair
Page 2
Yes Reflash and retest
Repair the
No
connector and
retest
Change EMI filter
No
and retest
Problem solved
Yes
Problem solved
Yes
¤Nokia Corporation
CCS Technical Documentation
No
Issue 1 07/02