168
Servicing of Main Board
TM8100 Mobile Radio
Service Manual
May 2004 © Tait Electronics Limited
Identify Replacement
Component
After locating the correct PCB information pack for the board, consult
the BOM for the board. Identify the component in question in the
BOM. Note, however, that a new PCB information pack is published
only whenever there is a major change in the design of the board. A
major change normally involves a change in the layout of the PCB,
which requires that the issue number in the IPN be incremented. Any
minor changes following a major change (and preceding the next major
change) normally involve only changes in the components on the board.
Such minor changes might affect the component in question. To
determine if this is the case, consult any technical notes that might apply
to the board; the procedure is given in the next paragraph.
Consult Technical Notes
A technical note about each major change is published on the Technical
Support website. Technical notes giving details of any intervening minor
but important changes are also published. To access these technical
notes, follow the procedure below. It is advisable to print and store a
copy of every technical note published.
1.
If not already logged on to the Technical Support website, do so
as described above. (Associate access is sufficient.)
2.
Click the
“Mobile Radios — TM8000”
option. A list of facilities for
this product family appears.
3.
Click the
“Technical Notes”
facility. A list of all technical notes
appears.
4.
From the publication dates of the technical notes identify those
that follow publication of the PCB information pack in question.
5.
Identify any of the above technical notes that apply to the main
board.
6.
For each technical note identified in Step 5, click the adjacent
“view/download”
command. The technical note is displayed. View
the document, print a copy, or save a copy in the test PC.
Alternatively, right-click the
“view/download”
command and select
the save or print option from the menu that appears.
7.
Determine from the technical notes if any changes apply to the
required replacement component.
Obtain Replacement
Component
Determine if the required replacement component is included in Spares
kit 5; a contents list is supplied with the kit. (Check with TEL regarding
the availability of the kit.) If the required component is not included in
the kit, order the component from a CSO or, in the case of a CSO, from
TEL. Always ensure that the replacement component has the identical
specification to that given in the BOM. It is particularly important for
the tolerances to be the same.
Summary of Contents for TM8000 Series
Page 32: ...32 Introduction TM8100 Mobile Radio Service Manual May 2004 Tait Electronics Limited ...
Page 78: ...78 Circuit Descriptions TM8100 Mobile Radio Service Manual May 2004 Tait Electronics Limited ...
Page 106: ...106 General Information TM8100 Mobile Radio Service Manual May 2004 Tait Electronics Limited ...
Page 124: ...124 Servicing Procedure TM8100 Mobile Radio Service Manual May 2004 Tait Electronics Limited ...
