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NHM-2/5nx,ny/6/9
Troubleshooting
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The phone is dead
The voltage at C404, C202,
C226, C227, C228 is = 3,6V
Yes
Voltage on R224 = 3,6V
Yes
Voltage at C316= 2,8V
Voltage at C243 = 2,8V
when WDDISX is grounded
Yes
See section "Phone is
unable to stay ON"
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Failiure in Vbatt line.
No
Check X203, R220.
No
Defective N201 or
PCB
WDDISX = 0 when
No
PWR switch is pressed
Yes
Defective CCONT
(N201)
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PAMS Technical Documentation
Check power switch
Check WDDISX line :
No
PWR switch -> R402
->R224
Ok
Defective PCB
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