Nokia 8310 - Phone Handling and Usage

CONFIDENTIAL 11 (18)
Customer Care Europe & Africa NHM-7 Repairhints
SCCE Training Group Version 1.0 Approved
 2002 Nokia Mobile Phones
Date 28.02.2002
© NMP 2002
Checked by:
SCCE Training Group
Approved by:
SCCE
CHAPTER 6 CHARGING FAULTS
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.
Charging not
possible
Run energy
management
calibration
Battery temperature failed
Battery size failed
Battery voltage failed Charge current failedCharge voltage failed
Try to charge after
calibration
UEM D200 faulty
in all probability
check BSI-line for shorts
to GND, check C109 or
change X101
check BTEMP-line for
shorts to GND, check
C109 or change X101
check / change X100,
F100, L100 and V100.
Probably D200 faulty
check resistance of
R200 (0.22 Ohm).
Probably D200 faulty
OK
nOK