Nokia E62, Руководство по обслуживанию

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Baseband manual tuning guide
Energy management calibration
Prerequisites
Energy Management (EM) 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. Place the phone to the docking station adapter (CU-4 is connected to the adapter).
2. Start
Phoenix
service software.
3. Choose File
→
Scan Product.
4. Choose Tuning
→
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.
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.
Table 11 Calibration value limits
Parameter Min. Max.
ADC Offset -20 20
ADC Gain 12000 14000
BSI Gain 1100 1300
VBAT Offset 2400 2650
VBAT Gain 19000 23000
IBAT (ICal) Gain 5750 12250
9. 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.
10. To end the procedure, close the
Energy Management Calibration
window.
RM-88
Nokia Customer Care BB Troubleshooting and Manual Tuning Guide
Page 6 –46 COMPANY CONFIDENTIAL Issue 1
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