Battery Calibration - Panasonic EB-X70 Technical Information

9.4. Battery Calibration

9.4.1 Preliminaries
1. Connect the RF Adaptor / Baseband Jig, telephone and PC as shown in the diagram below.
+3.7V POWER SUPPLY
PCB REPAIR JIG
10766-1
2. With the CB2000 software running, select the 'Baseband Calibration' button.
3. Select the Battery Calibration tab.
4. The Battery Calibration window is divided into three areas:
a) Semi-Auto Voltage Calibration
b) Temperature Calibration.
c) Charging Calibration.
9.4.2 Semi-Auto Battery Calibration
1. Ensure that VBAT is set to 3.7 V. Do NOT connect PSU 2 or Cable 2.
2. Carry out the instructions described in the main dialogue window. Note that the VBAT HIGH voltage is 4.2 V and that VBAT
LOW voltage is 3.0 V.
9.4.3 Temperature Calibration
1. Ensure that VBAT is set to 3.7 V. Do NOT connect PSU 2 or Cable 2.
2. Carry out the instructions described in the main dialogue window.
3. If at any time the message "Temperature Cal failed", the calibration procedure has failed. Check all test equipment
connections and that the correct resistor has been selected before suspecting a problem with the handset. Further
information may be displayed in the dialogue window.
4. When the message "Temperature Cal Done" is displayed in the dialogue window, the calibration procedure has been
completed.
PMCD030901C8
Service Manual
Figure 9.3: Battery calibration test connections
Section 9
– 55 –
CALIBRATION PROCEDURES
CABLE 1
+5.8 V POWER SUPPLY
CABLE 2
PC
Issue 1
Revision 1