Display Failure - Nokia RM-14 Baseband Troubleshooting And Manual Tuning
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Also See for RM-14:
- Rf troubleshooting and manual tuning (44 pages) ,
- Service software instructions (40 pages) ,
- Service tools and service concepts (20 pages)
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RM-14
Baseband Troubleshooting and Manual Tuning
■
Display failure
Display fails
Yes
Is display working
NO
Yes
Yes
End
ISSUE 1 11/04
Figure 12:Display failure
Change display
module
Is display
NO
working?
Measure Vflash1 @
L302 towards X302
(display connector).
Should be ~2,78Vdc
Measure VIO @ L301
towards X302 (display
connector). Should be
~1,8Vdc
Are LED's working?
Measure Vout on
C304 = ~13,5V
Measure RESX on
X302 - pin 24. Should
be ~1,8V.
Phone should work. If
not change engine
COMPANY CONFIDENTIAL
Copyright © 2004 Nokia. All Rights Reserved.
NO
Yes
NO
Yes
NO
Yes
*)
NO
*) Some of the components
Yes
under shield, not changeable
or measurable parts.
board.
Nokia Customer Care
*)
Check:
X302, C311, L302, C310,
D200 (UEME) and PWB
*)
Check:
X302, C309, L301, C308,
R307, D200 (UEME) and
PWB
Check:
N300, C304, R308, R312,
R306, X302, R305, X300, pwb
and UI board
Check:
D400 (TIKU) and pwb
21
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