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M850-00 1
Copyright TEL 30/11/96
T850 Series
Base Station Equipment
Service Manual
Issue 101
November 1996
M850-00-101
2M850-00
30/11/96 Copyright TEL
Head Office
New Zealand
Tait Electronics Ltd
558 Wairakei Road
P.O. Box 1645
Christchurch
New Zealand
Phone: 64 3 358-3399
Fax: 64 3 358-3636
Radio Infrastructure Division
535 Wairakei Road
P.O. Box 1645
Christchurch
New Zealand
Phone: 64 3 358-3399
Fax: 64 3 358-2825
Australia
Tait Electronics (Aust) Pty Ltd
275 Toombul Road
Northgate 4013
P.O. Box 679
Virginia
Queensland 4014
Australia
Phone: 61 7 3260-7799
Toll Free: 1800 077-112
Fax: 61 7 3260-7990
Canada
Tait Mobile Radio Inc.
Unit 5, 158 Anderson Avenue
Markham
Ontario L6E1A9
Canada
Phone: 1 905 472-1100
Toll Free: 1 800 890-8248
Fax: 1 905 472-5300
France
Tait France Sarl
2 Avenue de la Cristallerie
92 316 Sèvres, Cedex
France
Phone: 33 1 41 14-05-50
Fax: 33 1 41 14-05-55
Germany
Tait Mobilfunk GmbH
Willstätterstraße 50
D-90449 Nürnberg 60
Germany
Phone: 49 911 96 746-0
Fax: 49 911 96 746-79
Hong Kong
Tait Mobile Radio (HK) Ltd
Room 703A
New East Ocean Centre
9, Science Museum Road
Tsim Sha Tsui East
Hong Kong
Phone: 852 2369-3040
Fax: 852 2369-3009
New Zealand
Tait Communications Ltd
Unit 4, 75 Blenheim Road
P.O. Box 1185
Christchurch
Phone: 64 3 348-3301
Fax: 64 3 343-0558
Singapore
Tait Electronics (Far East) Pte Ltd
4 Leng Kee Road
SIS Building #05-11A
Singapore 159088
Phone: 65 471-2688
Fax: 65 479-7778
Thailand
Tait Mobile Radio Ltd
14/1 Suwan Tower
Ground Floor
Soi Saladaeng 1
North Sathorn Road
Bangrak
Bangkok 10500
Thailand
Phone: 662 267-6290-2
Fax: 662 267-6293
Taiwan
Tait Electronics (Taiwan) Ltd
1104, No. 142 Chung Hsiao E. Rd
Sec. 4
Taipei
Taiwan
Phone: 886 2 731-1290
Fax: 886 2 711-6351
United Kingdom
Tait Mobile Radio Ltd
Ermine Business Park
Ermine Road
Huntingdon
Cambridgeshire PE18 6YA
United Kingdom
Phone: 44 1480-52255
Fax: 44 1480-411996
USA
Tait Electronics (USA) Inc.
9434 Old Katy Road
Suite 110
Houston
Texas 77055
USA
Phone: 1 713 984-8684
Toll Free: 1 800 222-1255
Fax: 1 713 468-6944
M850-00 3
Copyright TEL 30/11/96
About This Manual
Scope This manual contains general, technical and servicing informa-
tion on T850 25W, 50W and 100W base stations which comprise
the following equipment:
Format We have published this manual in a ring binder so that "revision
packages" containing additional information pertaining to new
issues of PCBs can be added as required.
Revision Packages Revision packages will normally be published to coincide with
the release of information on a new PCB, and may also contain
additions or corrections pertaining to other parts of the manual.
If you return the registration form at the front of this manual,
you will be notified when revision packages containing new
PCB information and/or text are available. You may then order
as many packages as you require from your local Tait Company.
Revision packages are supplied ready-punched for inclusion in
your manual.
Revision Control Each page in this manual has a date of issue. This is to comply
with various Quality Standards, but will also serve to identify
which pages have been updated and when. Each page and its
publication date is listed in the "List of Effective Pages", and a
new list containing any new/revised pages and their publica-
tion dates will be sent with each revision package.
Any portion of text that has been changed is marked by a verti-
cal line (as shown at left) in the outer margin of the page. Where
the removal of an entire paragraph means there is no text left to
mark, an arrow (as shown at left) will appear in the outer mar-
gin. The number beside the arrow will indicate how many para-
graphs have been deleted.
The manual issue and revision status are indicated by the last
three digits of the manual IPN. These digits start at 100 and will
increment through 101, 102, 103, etc., as revision packages are
published, e.g:
25W base station T855 receiver
T856 25W transmitter
50W base station T855 receiver
T857 exciter
T858 50W power amplifier
100W base station T855 receiver
T857 exciter
T859 100W power amplifier
2
1 0 3
issue status revision status
4M850-00
30/11/96 Copyright TEL
Thus, Issue 103 indicates the third revision to issue 1 and means
that three packages should have been added to the manual. The
issue digit will only change if there is a major product revision,
or if the number of revision packages to be included means that
the manual becomes difficult to use, at which point a new issue
manual will be published in a new ring binder.
PCB Information PCB information is provided for all current issue PCBs, as well
as all previous issue PCBs manufactured in production quanti-
ties, and is grouped according to PCB. Thus, you will find the
parts list, grid reference index (if necessary), PCB layouts and
circuit diagram(s) for each individual PCB grouped together.
Errors If you find an error in this manual, or have a suggestion on how
it might be improved, please do not hesitate to contact the Tech-
nical Writer, Tait Radio Infrastructure Division, Tait Electronics
Ltd, P.O. Box 1645, Christchurch, New Zealand.
Technical Information
Any enquiries regarding this manual or the equipment it describes should be addressed
in the first instance to your nearest approved Tait Dealer or Service Centre. Further
technical assistance may be obtained from the Customer Support Group, Radio Infra-
structure Division, Tait Electronics Ltd, Christchurch, New Zealand.
Updating Equipment And Manuals
In the interests of improving performance, reliability or servicing, Tait Electronics Ltd
reserve the right to update their equipment and/or manuals without prior notice.
Copyright
All information contained in this manual is the property of Tait Electronics Ltd. All
rights are reserved. This manual may not, in whole or part, be copied, photocopied,
reproduced, translated stored or reduced to any electronic medium or machine readable
form without prior written permission from Tait Electronics Ltd.
Ordering Tait Service Manuals
Service Manuals should be ordered from your nearest Tait Branch or approved Dealer.
When ordering, quote the Tait Internal Part Number (IPN) and, where applicable, the
version.
Date Of Issue
IPN M850-00-101 T850 Series Service Manual
Issue 101 published November 1996
M850-00 5
Copyright TEL 30/11/96
Table Of Contents
This manual is divided into eight parts as listed below, with each part being further sub-
divided into sections. There is a detailed table of contents at the start of each part
and/or section.
Part Title
A Introduction To Servicing
B T855 Receiver
C T856 Transmitter & T857 Exciter
D T858/859 Power Amplifiers
E T800 Memory & T850 VCO PCB Information
F Installation
G System Configurations
H T800 Ancillary Equipment
6M850-00
30/11/96 Copyright TEL
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The total number of pages in this Manual is 436, as listed below.
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