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Consumer Solutions & Support |
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US Competency Center |
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600 North US Highway 45 |
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Libertyville, Illinois 60048 |
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Website: gs.mot.com |
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FIELD SERVICE BULLETIN |
FSB Number: |
LVCCFSB2005-64 |
Authors: |
Darwin Garcia |
Date: |
March 14, 2005 |
Total No. of Pages: |
2 |
Subject: |
MPX220 CE Connector Crack Solder |
Model Affected: |
MPX220 |
Level of Repair: |
3 |
Problem
Service has detected a CE connector issue during MPX220 NPI process. Phones are being return for “No Charge” complaints. The failure occurred in the bulk solder and cold solder (under-reflow) was a small contributing factor but the failure appeared to be mechanical overstress of the connector. Deformation of one of the retention tabs indicated that a force had been applied to the front of the plastic pin assembly.
The CE connector found on the NPI failures was of Molex K08 prior to date code of 4261, which was known to have soldering issue.
MOTOROLA INTERNAL USE ONLY |
Page 1 |
|
Consumer Solutions & Support |
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US Competency Center |
|
600 North US Highway 45 |
CE Connector date code configuration. |
Libertyville, Illinois 60048 |
Website: gs.mot.com |
Solution
ODM factory improved the reflow process to increase break point of solder and are using K08 CE connector starting with date code 4351.
Field Service Action
Customer Returns:
When servicing any MPX220 customer phones with no charge complaints, follow troubleshooting guide to determine is the CE connector is open:
MPX220 No Charge Troubleshooting guide
Open CE Connector
Resistance from CE Pin 3 (+red) to CE Pin 1 (-black) will be open
A working unit will measure 3 KOHM between ground and external power
Resistance from CE Pin 3 (+red) to CE Pin 6 (-black) will be open
A working unit will measure 9 KOHM between USB power and external power since they get combined after the diodes.
MOTOROLA INTERNAL USE ONLY |
Page 2 |