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8
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9.3.6 Battery Temperature AD Calibration
1. Connect
PS-2 so that 1.42V is supplied to TBAT.
2. Monitor the average value of the tbat ADC reading.
If this average value is outside the range of 3700 to 3300, then the unit has failed.
3. Enter the average tbat ADC value into the Battery ADJ Excel sheet in the tbat=1.42V field.
4. Change the power supply PS-2 voltage from 1.42 V to 0.48 V.
5. Monitor the average value of the tbat ADC reading.
If this average value is outside the range of 2300 to 2800, then the unit has failed.
6. Enter the average tbat ADC value into the Battery ADJ Excel sheet in the tbat=1.42V field. The recorded
VBAT/TBAT values will be used to automatically calculate the VBAT_GAIN/OFFSET and TBAT_GAIN/OFFSET.
It will then be stored to the eep file of the BATT format Excel sheet.
7. Convert the Excel sheet of EEP data to TXT(text) format.
File -> Save As -> Text(Tab delimited) -> Save
8. Rename the text file from the original filename and then save to PC.
Input the calibrated VBAT & TBAT value
PROVISIONAL ISSUE
Summary of Contents for EB-X700
Page 91: ... 9 23 10 From the Modes pull down menu select EEPROM PROVISIONAL ISSUE ...
Page 107: ...12 6 Mini SD SIM PCB 12 6 PROVISIONAL ISSUE ...
Page 109: ...12 8 LCD PCB 12 8 PROVISIONAL ISSUE ...
Page 110: ...13 LAYOUT DIAGRAMS 13 1 Main PCB Top View 13 1 1 2K PROVISIONAL ISSUE ...
Page 111: ...13 2 Main PCB Bottom View 13 2 1 5K 10K 10K 10K 10K 10K 1 5K PROVISIONAL ISSUE ...
Page 112: ...13 3 LCD PCB Bottom View 13 3 PROVISIONAL ISSUE ...