Nokia 8310 Repair Hints page 11

Customer Care Europe & Africa
SCCE Training Group
© 2002 Nokia Mobile Phones
CHAPTER 6 CHARGING FAULTS
Battery size failed
check BSI-line for shorts
to GND, check C109 or
change X101
First thing you should do in case that charging of battery is not possible is to run energy management calibration. Note
that calibration only works with JBV-1. In Service jig it is not possible because of missing bottom connector I009.
Also check whether charging is only from time to time not possible or if charging does not work permanently. In case
that fault appears from time to time only, especially check spring contacts of bottom connector I009 and battery connector
X101 if bent, soiled or corroded. Also make sure that contact pads for bottom connector on PCB are clean. If necessary
clean PCB with an appropriate amount of alcohol. Do not use any scratching or rubbing tools!
To ensure function of the phone run energy management calibration whenever a part has been changed in the charging
circuit!
I009, X101
- check mechanical appearance of battery connector and bottom connector, change parts if bent, soiled or corroded.
also ensure that contact pads for bottom connector on PCB are clean.
F100
- check resistance of fuse. Must be 0Ω
V100
check that V100 does not cause a short circuit to ground. Resistance of VCHAR-line to ground normally is ~ 2.8kΩ
-
D200
- due to the missing possibility of rewriting IMEI and Simlockdata after changing UEM D200 it is not useful to change
this part at the moment.
© NMP 2002
Battery temperature failed
Battery voltage failed
check BTEMP-line for
UEM D200 faulty
shorts to GND, check
in all probability
C109 or change X101
CONFIDENTIAL
NHM-7
Date 28.02.2002
Charging not
possible
Run energy
Try to charge after
management OK
calibration
calibration
nOK
Charge voltage failed
check / change X100,
F100, L100 and V100.
Probably D200 faulty
Checked by:
SCCE Training Group
11 (18)
Repairhints
Version 1.0 Approved
Charge current failed
check resistance of
R200 (0.22 Ohm).
Probably D200 faulty
Approved by:
SCCE