Phone Totally Dead - Nokia NHM-1 Series Troubleshooting Instructions

NHM-1
Troubleshooting instructions

Phone totally dead

Start
Is phone current
0 mA?
No
Phone current
<150 mA
No
Phone current
~150 mA
Yes
Is phone in
LOCAL mode ?
Yes
End
Page 40
Check X300
(contacts,
Yes
solderings). Is it
OK?
Yes
Check N301,
C303, C304,
L301 – L305
OK ?
Yes
Check all
VBATT-lines
Is flash
Yes
programming
working OK?
No
No
Check BSI-line including
No X300,C308,R201
and R213. Are they OK?
No
Nokia Corporation.
CCS Technical Documentation
No Change X300
Change defect
No
ones
Phone is
Yes
jammed
Flash fault
Change UEM
Yes
Change defect part
Issue 1 11/03