Nokia 2650 - Cell Phone 1 MB, Service Manual

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Issue 2 06/2005 COMPANY CONFIDENTIAL 43
Copyright © 2005 Nokia. All Rights Reserved.
RH-53/54
Nokia Customer Care
Select “Calibrate” to run the selected calibrations.
Limits for Energy Management Calibration:
If values shown are within limits select “Save To Phone” to save the values in the phone.
NOTE! Only the values of the checked tunings (Battery size, Battery Temperature etc…) are
saved.
Close the “Energy Management Calibration” – dialog to end tuning.
You must manually switch the phone on after exiting “Energy Management Calibration” – dia-
log.
Table 1:
Parameter Min. Max Note
ADC gain 25400 29000 VBatt, BSI, BTemp
DC offset -50 50 ADC voltage offset
BSI gain 970 1100 ADC BSI calibration gain
BTEMP gain 2075 2275 ADC BTEMP calibration
gain
VBAT gain 10000 11000 ADC VBATT Voltage gain
VBAT offset 2300 2900 ADC VBATT Voltage offset
scale
VCHAR 58000 62000 Charge voltage
ICHAR 4050 4800 charge current