Motorola T720, T730, T731, V60x, V60p Service Manual

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Consumer Solutions & Support US Competency Center 600 North US Highway 45 Libertyville, Illinois 60048

Website: gs.mot.com

FIELD SERVICE BULLETIN

FSB Number: LVCCFSB2004-87 Author: Tom Johnson Date: May 3 Total No. of Pages: 2 Subject: CDMA 1X Charger IC Models Affected: CDMA T720, T730, T731, V60x, V60p, V60s, C333, C343, C210, Level of Repair: 3, 4

, 2004

Problem

Service is aware of an issue, identified in the 1st 200 NPI Analysis of all CDMA 1X models, with the Semtech 5187970L19, Charger IC. A large percentage of the customer returns with complaints of “Does Not Charge” were confirmed and analysis revealed a faulty Charger IC. The charger IC under normal conditions with external B+ applied to the CE connector will pass external B+ voltage through the IC to the B+ voltage circuitry. The faulty charger IC, due to high leakage current, will only pass approximately 2 volts or less to the B+ voltage circuitry resulting in a no charge condition.

Solution

Short Term CA:

IC vendor has implemented new testing requirements after week 40 of 2003.

Long-Term CA:

The charger IC has been designed out of future products that incorporate the PM6000 power management IC.

Service Action

Customer Returns:

When servicing affected CDMA customer returns, with a customer complaint of “Will Not Charge” verify the charger IC operation by the following means:

1. With the phone powered off, Apply External Power to the CE connector: a. Measure the DC voltage going into the charger IC on pins 13 and 14. This

voltage should be equal to the applied external voltage applied to the CE connector.

b. Measure the DC voltage coming out of the charger IC on pins 15 and 16.

A functional charger IC voltage should be approximately equal to the input voltage measured on pins 13 and 14.

c. A faulty charger IC will measure 2 VDC or less on pins 15 and 16.

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Consumer Solutions & Support US Competency Center 600 North US Highway 45 Libertyville, Illinois 60048

Website: gs.mot.com

d. If the charger IC is found to be functional, then follow normal

troubleshooting techniques for the customer complaint.

e. Faulty charger IC’s should be replaced with IC’s with a date code 0341 or

newer. See Photo for date code identification.

Service Inventory:

Return all parts with date code prior to 0341 to the vendor per purge notice issued 3/25/2004.

Call Center Action

Advise that valid “Does Not Charge” complaints be returned to the local service center for analysis.

Service Entry Code

Please ensure that repairs of this type are logged on the Service database as follows:

Global M-Claims Codes:

Customer Complaint Code: CHG01 (Charging – Does Not Charge) Problem Found Code: CHG01 (Charging – Does Not Charge) REF Designator Code: U3800 (Charging IC) Repair Code: REP06 (Replace Electrical Part – CSB/FSB)

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