Panasonic EBX70 - CELL PHONE Manual

Order Number: PMCD031201T8

Digital Cellular Phone

EB-X70

Subject : Baseband Calibration Procedure

1Introduction

Please replace Pages 55 and 56 of the X70 Service Manual with the new pages attached to this Technical Bulletin.

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general

public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to

service a product. Products powered by electricity should be serviced or repaired only by experienced professional

technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else

could result in serious injury or death.

Unauthorised copying and distribution is a

violation of law.

CALIBRATION PROCEDURES

PMCD030901C8 Section 9 Issue 1

Service Manual – 55 – Revision 1

9.4. Battery Calibration

9.4.1 Preliminaries

1. Connect the RF Adaptor / Baseband Jig, telephone and PC as shown in the diagram below.

Figure 9.3: Battery calibration test connections

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.

+3.7V POWER SUPPLY PC

CABLE 1

PCB REPAIR JIG +5.8 V POWER SUPPLY

CABLE 2

10766-1

CALIBRATION PROCEDURES

Issue 1 Section 9 PMCD030901C8

Revision 1 – 56 – Service Manual

9.4.4 Charging Calibration

1. Switch on PSU2 and set the voltage to 5.8 V. Connect Cable 2 to the connector of Cable 1.

2. Carry out the instructions described in the main dialogue window.

3. When prompted, measure the RF Adaptor / Baseband Jig voltage by connecting a voltmeter to the terminals on the RF

Adaptor / Baseband Jig.

4. If at any time the message “Charging 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.

5. When the message “Charging Cal Done” is displayed in the dialogue window, the calibration procedure has been

completed.

9.5. Camera Calibration

Currently there are no camera calibration procedures for this product.

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