Charging Failure - Nokia NSW-6 Series Disassembly & Troubleshooting Instructions

NSW-6
Disassembly & Troubleshooting

Charging failure

Nothing happens when charger is connected
Voltage level at VCHAR–pin of CCONT is
higher than 0.17 V
when charger is connected
Voltage level at C165 is about 0.8 V when
Voltage level at C168 is about 0.5 V when
power is connected BTEMP resistor value
should be 47 k
32 Hz square wave frequency at R150 if ACP–9U
charger is connected, 1 Hz square wave frequency if
ACP–7U or ACP–8 is connected
Voltage levels at R153 are same as VBAT (C180)
Page 18
YES
YES
Check N150
Display Information: Not charging
YES
power is connected BSI resistor value
should be 18 k
YES
YES
YES
YES
Voltage levels at R153 rises when
charger is connected
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Check
NO
X102, R158, R160,
F150
Check
NO
R158, R163
NO
Check
R163, R161
Check
NO
N150
NO
Check
R153, N151
Faulty
NO
N151
Issue 1 12/99