Table of Contents
Advertisement
RM-57/58
BB Troubleshooting and Manual Tuning Guide
Baseband manual tuning guide
Energy management calibration
Before you begin
EM (Energy Management) calibration is performed to calibrate the setting (gain and offset) of AD converters in
several channels (that is, battery voltage, BSI, battery current) to get an accurate AD conversion result.
Hardware setup:
• An external power supply is needed.
• Supply 12V DC from an external power supply to CU-4 to power up the phone.
• The phone must be connected to a CU-4 control unit with a product-specific flash adapter.
Steps
1.
Switch the phone to the docking station adapter (CU-4 is connected to the adapter).
2.
Start Phoenix service software.
3.
From the File menu, choose "Scan product".
4.
From the Tuning menu, choose "Energy Management Calibration".
5.
To show the current values in the phone memory, click "Read", and check that communication between
the phone and CU-4 works.
6.
Check that the "CU-4 used" check box is checked.
7.
Select the item(s) to be calibrated.
Note:
ADC calibration has to be performed before other item(s). However, if all calibrations are selected
at the same time, there is no need to perform the ADC calibration first.
8.
Click Calibrate.
The calibration of the selected item(s) is carried out automatically.
9.
The candidates for the new calibration values are shown in the "Calculated values" column. If the new
calibration values seem to be acceptable (please refer to the following "Calibration value limits" table),
click Write to store the new calibration values to the phone permanent memory.
Parameter
ADC Offset
ADC Gain
BSI Gain
VBAT Offset
VBAT Gain
IBAT (ICal) Gain
10. Click "Read" and confirm that the new calibration values are stored in the phone memory correctly. If the
values are not stored to the phone memory, click "Write" and/or repeat the procedure again.
11. To end the procedure, close the "Energy Management Calibration" window.
Issue 1
Table 12 Calibration value limits
Min.
-20
12000
1100
2400
19000
7750
Company Confidential
Copyright ©2005 Nokia. All Rights Reserved.
Nokia Customer Care
Max.
30
14000
1300
2650
23000
12250
Page 6–59
Advertisement
Chapters
Table of Contents
Troubleshooting
