User Guide

NHL-4/4U Company confidential
Troubleshooting Instructions CCS Technical Documentation
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Start
Is phone current
0 mA?
Check X100
(contacts,
solderings). Is it
OK?
Check L260 -
L265 and C260 -
C265. Are they
OK?
Change defect
ones
Check all
VBATT-lines
Yes
Check BSI-line including
X100,C100,C240,R202
and R206. Are they OK?
End
Yes
No
Change UEM
Yes
Is flash
programming
working OK?
Yes
Phone current
< 50 mA
No
No
Change X100
No
Phone current
~54 mA
Phone is
jammed
Yes
Yes
Flash fault
No
No
Is phone in
LOCAL mode ?
Change defect part
No
No
Yes
Yes