Nokia 2100 - Page 12

CONFIDENTIAL
12 (15)
Customer Care Europe, Middle East & Africa NAM-2 Repair Hints
Technical Services / SCCE Training Group Version 2.0 Approved
© 2004 Nokia Corporation
03/03/2004
© NMP 2004
Checked by:
SCCE
Approved by:
SCCE Training Group
Battery size failed:
Check voltage at C160 or C162, normally 0.5 VDC in service jig. If voltage is not ok, check
R120/122 for defect or broken solderings, also check C120/160/162 have no shorts to
ground. If the mentioned parts are ok but fault persists, it is necessary to swap the phone
because CCONT is underfilled and therefore not changeable
Battery voltage failed:
This A/D-value is generated inside of CCONT (N100), so that you have to swap the phone
because CCONT is underfilled and therefore not changeable, if A/D-value is out of limit.
Charge current failed:
Probably VCHARGE-line is interrupted. Check resistance of R131 (0.22 Ohm) or change CHAPS
(N101). If this does not solve the problem, swap the phone because CCONT is responsible for
this fault.
Charge voltage failed:
In case of this message, first of all check voltage at voltage divider R103/104. Voltage here
normally is 0.9 VDC with connected charger ACP-7. If this voltage is ok, it is necessary to swap
the phone because CCONT is underfilled and therefore not changeable.
Remember to run energy management calibration if any part in the charging circuit has been
replaced!!!