Baseband Calibration Item - LG U8130 Service Manual

8.3.6 Baseband Calibration Item

A. Battery Voltage Calibration
- Purpose
Calibrates the voltage table for the power management functionality. Some voltage measurements in
the remaining test will be done with calculated voltage levels from this test.
- Procedure Proposal
1. Send the command LVBA=0 to reset local values in Test Program.
2. Set voltage on VBATT to 3.20 V.
3. Send the command LVBA=5,0x140 to read the low voltage level from ADC.
4. Set voltage on VBATT to 4.10 V.
5. Send the command LVBA=5,0x19A to read the high voltage level from ADC.
6. Send the command LVBA=1 to store local values into global data.
7. Send the command LVBA=3 to view and record values stored in global data.
Voltage Level on VBATT (V)
3.2
4.1
Min.
19
25
64
100
Table 8-7. Battery Voltage Calibration Limits
- 225 -
8. CALIBRATION
Typ. Max.
2E 3C
42 60
7E 96
125 150
Unit
HEX
DEC
HEX
DEC