Figure 18: Fault Finding For Charger Failure (Cont'd) - Nokia NSB-5 Series Troubleshooting Instructions

NSB-5
Troubleshooting Instructions
Display information:
Voltage at C119 is about
0.8V, power on, BSI
Voltage at C120 is about
0.5V, power on, BTEMP
32Hz (fast charger) or 1Hz
(slow charger) at N101
voltage at N101 pin 5 &
12 rises when charger is
Page 24
Not charging
value 39k
Yes
value 47k
Yes
(CHAPS) pin 7
Yes
N101 pin 5 & 12
same voltage as
Vbatt
Yes
connected
Yes
Check PCB

Figure 18: Fault Finding for Charger Failure (Cont'd)

Nokia Mobile Phones Ltd.
PAMS Technical Documentation
No
Check X102, R115,
R123, C119
No
Check X101, R105,
V105, R124, C105,
R115, R123, C120
No
Check R100, N100
No
Check R102, N101
No
Check N101
Issue 1 03/01