Tait T800 SL2 25W, Руководство по обслуживанию

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B6.1.4 T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Parts Lists
The 10 digit numbers (000-00000-00) in this Parts List are “internal part numbers” (IPNs). We can
process your spare parts orders more efficiently and accurately if you quote the IPN and provide a
brief description of the part.
The components listed in this parts list are divided into two main types: those with a circuit refer-
ence (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).
Those with a circuit reference are grouped in alphabetical order and then in numerical order within
each group. Each component entry comprises three or four columns, as shown below:
The miscellaneous and mechanical section lists the variant and common parts in IPN order.
Variant Components
A variant component is one that has the same circuit reference but different value or specification in
different product types. Where two products share the same PCB, the term “variant” is also used to
describe components unplaced in one product. Variant components have a character prefix, such as
“&”, “=” or “#”, before the circuit reference (e.g. &R100).
The table below explains the variant prefixes used in T800 SL2 products:
If the variant prefix is. . . the component will. . .
& change according to channel spacing
= change according to frequency stability
# change according to frequency range
% change or be placed/unplaced for special applications
*
be unplaced in one product
(where two products share the same PCB)
circuit reference -
lists components
in alphanumeric
order
variant column -
indicates that this is
a variant component
which is fitted only to
the product type listed
Internal Part Number -
order the component
by this number
description -
gives a brief description
of the component