User Guide

Issue 1 12/04 COMPANY CONFIDENTIAL 49
Copyright © 2004 Nokia. All Rights Reserved.
RAE-6/RA-4
6 - Baseband Description and Troubleshooting Nokia Customer Care
■ Charging troubleshooting
Check R2200. Is it
OK?
Charging fault
No
Yes
Battery bars are
scrolling?
Change defect part
and retest.
Yes
Connect charger
and measure
voltage from both
ends of C2026. Is it
> 3.0V?
Check X2021,
X2022, F2020,
C2026 and V2020,
All components ok?
No
Re-calibrate ADC,
charge current and
voltage with Phoenix
Energy Management
tuning. Calibration OK?
Yes
No
No
Change defect part,
re-calibrate charge
current and voltage.
Retest
No
Read BTEMP value with
Phoenix. Is it close to
ambient temperature
(~25C)?
No
Re-calibrate ADC
with Phoenix Energy
Management tuning.
Retest OK?
No
Check R2021,
R2350, R2354 and
C2351. All
components OK?
Yes
Fault is in non-
reworkable
component. Refer to
current BER
handling guidance.
(UEMEK D2200
problem).
No
Yes
Change defect part,
re-calibrate charge
current. Retest.
Yes Retest