Energy Management Calibration - Nokia RH-47 Series Description

RH-47
7 - Baseband Description & Troubleshooting

Energy management calibration

During energy management calibration, A/D-converter, BSI, Btemp, battery voltage,
charger voltage and charger current are calibrated.
ADC-offset over limits:
Inspect the BSI line and components (R381, R200, pull-up resistor R193). If these are OK,
change UEM.
BSI Gain over limits:
Inspect the BSI line and components (R381, R200, pull-up resistor R193). If these are OK,
change UEM.
Page 38
Company Confidential
Table 1: Limits for calculated calibration
Channel Low
ADC Offset -50
ADC Gain 26000
BSI Gain 860
Vbatt Offset 2400
Vbatt Gain 10000
Vchar 57000
Ichar 3600
Copyright © 2004 Nokia Corporation
Company Confidential
Nokia Customer Care
High
50
29500
1180
2600
11000
63000
5000
Issue 1 05/04