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NHM-3
Trouble Shooting
PAMS Technical Documentation
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Phone is dead
J104 (VB) or
V440 Katode:
VBAT = 3.6V
Failure in VBAT line
Check X120, L123
J102 (WDDIS) = 3.6V
Faulty N102 or
faulty PCB
J109 (VBB) = 2.8 V
J106 (VXO) = 2.8 V
when PWR switch is pressed
or J102 is grounded
J102 = 0V when PWR switch
is pressed or X200 pin 11 is
grounded
See section:
"Power Doesn't Stay On…"
Faulty N102 CCONT
Check PWR switch.
Check WDDIS line:
PWR switch ->
J102 -> X200 pin 11
Faulty PCB
Yes
No
No
No
No
No
Yes
Yes
Yes