Charger Fault - Nokia NPL-3 Series Troubleshooting Instructions

CCS Technical Documentation

Charger Fault

Start
Battery bars are
working (scroll)
No
Measure voltage
over V100
(TVS).
Is it > 3.0V?
Yes
Read BTEMP value.
Compare it to ambient
temperature.
Is it ~25C?
Yes
Measure charger
current throug F100.
Is it ~350...390mA
(with ACP-7)?
Yes
Retest
Issue 1 3/03
Company confidential
Figure 41: Charging troubleshooting
Yes
Check X102, F100,
No L100, V100, C106, C110
and line.
Check X100, C100,
R202, R207, C220
No
and line. Are they
OK?
Check R200. Is it
No
OK?
No
ãNokia Corporation.
Troubleshooting Instructions
Retest
Change defect part (if
any), re-calibrate charge
current/voltage. Retest.
Re-calibrate BTEMP with
Yes
Phoenix SW. Retest.
Change defect part,
No
re-calibrate and retest.
Yes Change UEM
Change defect part,
re-calibrate charge
current/voltage. Retest.
NPL-3
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