Motorola A835 Service Manual

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Consumer Solutions &
Support
Website: gs.mot.com
FIELD SERVICE BULLETIN
FSB Number: LVCCFSB2004-72 Author: Ross Karlen Date: March 23rd, 2004 Total No. of Pages: 2 Subject: 3G Talon Integrated A835 – Rear Endo Model Affected: 3G Talon Integrated A835 Level of Repair: 3
Problem
This is an informational bulletin detailing a hardware change on Talon Integrated A835 model from “BH” suffix (old) to “DH” suffix (new). The hardware change is to address two issues, one to improve WCDMA RX performance, which included a rear endo change (new antenna) and parts change, and the second to address a factory test issue related to Output RF spectrum (ORFS).
Solution
1. Rear Endo change from 1588120N08 to 1588120N10 (New Antenna)
2. Antenna matching values required for 1588120N10 Rear Endo
Ref Des old (“BH” suffix) new (“DH” suffix) C050 2409377M11 Do not place C052 2113740F39 2409377M41 L051 Do not place 2409377M07
3. ORFS fix
Ref Des old (“BH” suffix) new (“DH” suffix)
R810 0662057M66 0662057M39
C852 2113743N32 2113743L01
L580 2113743N09 Do not Place
Note: Anytime you change the Rear Endo to 1588120N10 on a Talon integrated
A835 unit with a BH (suffix) you must perform the parts changes in Item 2. No BH
(suffix) boards should have the ORFS (Item 3) changes performed on them.
MOTOROLA INTERNAL USE ONLY Page 1
`
Consumer Solutions &
Support
Website: gs.mot.com
Service Action
Customer Returns:
When servicing 3G Talon Integrated A835 “BH” (suffix) units, it is not necessary to replace the Rear Endo with a 1588120N10 Rear Endo. If unit is returned for poor call performance related to WCDMA RX, then:
1. Replace 1588120N08 Rear Endo with the 1588120N10 Rear Endo
2. Perform the following changes:
Ref Des new (“DH” suffix) C050 remove C052 change to 2409377M41 L051 change to 2409377M07
3. Proceed with normal testing and troubleshooting procedures for these types of returns.
Service Inventory:
No action required
Service Entry Code
Please ensure that repairs of this type are logged on the Service database as follows: Note: Only use these codes for units that are considered NT’s and this repair was performed.
Global M-Claims Codes:
Customer Complaint Codes: CPR05 (Voice call – drop call, poor reception) Problem Found Code: CPR07 (Voice call – drop call poor reception weak signal) REF Designator Code: ANT (Antenna) Repair Code: RAN06 (Replace antenna – SCB/FSB)
Asia Codes:
Fault Code: 14 (No/Poor Rx Audio) Repair Code: 04 (Part Replaced)
MOTOROLA INTERNAL USE ONLY Page 2
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