Replacing Board Components - Tait TM8100 mobiles Service Manual

4.5

Replacing Board Components

Check the Issue
Number
Identify the
Damaged
Component
Consult the
Technical Notes
TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
To obtain a replacement board component, complete the following steps in
the order shown:
1. Check the issue number.
2. Identify the damaged component.
3. Consult the technical notes.
4. Verify the specifications.
5. Order the replacement component.
1. Locate the unique 10-digit Internal Part Number (IPN) that is
printed on the PCB. For example,
2. Make sure that the IPN on the board is identical to the IPN on the
PCB Information document that was supplied with the service
documentation.
The last two digits of each Internal Part Number (IPN) are the issue
number of the board. Starting at 01, the issue number increments by
one (02, 03, and so on) each time the PCB is re-issued. See also
"Consult the Technical
3. If the IPNs do not match, download the correct version of the PCB
Information from the Technical Support website.
Note
To replace a printed board assembly, such as a control board, quote
the relevant product code: see
To replace a component on a PCB, however, use the IPN on the
PCB to locate the correct PCB Information document: see
Information" on page
1. Consult the BOM for the board under repair.
2. Use the BOM to identify the damaged component.
Consult all technical notes that apply to the board before ordering the
replacement component. Technical notes are published on the Technical
Support website.
When there is a major change in the design of a board, such as a change in
layout, the issue number of the board increments. When this happens, the
IPN changes, new PCB Information is published, and a technical note is
created. In between major changes, minor changes may be made to a board.
For example, one component may be changed. There is no change to the
issue number of the board, but if the minor change is important, a technical
note is created. IPN and PCB Information will not alert you to a minor
change: only the technical notes will. It is good practice to print and store a
copy of every technical note.
220-01761-09
Notes", below.
"Product Codes" on page
109.
General Information
.
17.
"PCB
117