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Tait T855 - User Manual

Tait T855
370 pages
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M850-00
1
Copyright TEL 31/09/98
T850 Series II
Base Station Equipment
400-520MHz
Service Manual
Issue 200
October 1998
M850-00-200

Table of Contents

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Tait T855 Specifications

General IconGeneral
BrandTait
ModelT855
CategoryAccessories
LanguageEnglish

Summary

Part A Introduction To Servicing

General

Covers general and advisory information on servicing procedures.

Mechanical

Details mechanical aspects including screw types and torques.

Component Replacement

Procedures for removing and fitting components on PCBs.

Software History

Details the evolution of PGM800Win software versions.

Part B T855 Receiver

General Information

Brief description of the T855 receiver with specifications.

Specifications

Performance figures for T855 receiver, including bandwidth and supply.

Product Codes

Explanation of the T850 Series II product code structure.

Standard Product Range

Lists standard T855 types available at publication.

Circuit Operation

Describes the circuit operation of the T855 receiver.

Initial Tuning & Adjustment

Covers tuning and adjustment procedures for the T855.

Functional Testing

Confirms T855 tuning and adjustment correctness.

Fault Finding

Procedures and flow charts for locating T855 hardware problems.

PCB Information

Provides information on T855 PCBs, including parts lists and diagrams.

Part C T856 Transmitter & T857 Exciter

General Information

Describes T856 transmitter and T857 exciter, including specifications.

Specifications

Performance figures for T856/T857, including bandwidth and supply.

Product Codes

Explanation of the T850 Series II product code structure.

Standard Product Range

Lists standard T856 types available at publication.

Standard Product Range

Lists standard T857 types available at publication.

Circuit Operation

Describes the circuit operation of T856 transmitter and T857 exciter.

Initial Tuning & Adjustment

Covers tuning and adjustment procedures for T856/T857.

Functional Testing

Confirms T856/857 tuning and adjustment correctness.

Fault Finding

Procedures and flow charts for locating T856/857 hardware problems.

PCB Information

Information on T856 and T857 PCBs, including parts lists and diagrams.

Part D T858 & T859 Power Amplifiers

General Information

Describes T858/T859 power amplifiers, including specifications.

Specifications

Performance figures for T858/T859, including power output and temperature.

Product Codes

Explanation of the T850 Series II product code structure.

Standard Product Range

Lists standard T858 and T859 types available at publication.

Circuit Operation

Describes the circuit operation of the T858 and T859 power amplifiers.

Initial Adjustment

Covers adjustment procedures for T858/T859 power amplifiers.

Fault Finding

Procedures and flow charts for locating T858/859 hardware problems.

PCB Information

Provides information on T858 and T859 PCBs, including parts lists and diagrams.

Part E T850 VCO PCB Information

Introduction

Information on PCB identification and parts lists.

Parts Lists

Details the components for the T850 VCO PCB.

Parts List Amendments

Lists component changes made after initial parts list compilation.

Part F Installation

T855 Installation

Rack mounting and wiring procedures for T855 receiver.

T856;857 Installation

Rack mounting and wiring procedures for T856/T857.

T858;859 Installation

Rack mounting and wiring procedures for T858/859.

Part G System Configurations

T855 Link Selectable Features

Details link selectable features for the T855 audio processor.

T856;857 Optional Features

Details optional features for T856/857 audio processor and keying.

Talk Through Repeater

Describes configuration for talk through repeater operation.

Line Controlled Base Without Talk Through

Describes configuration for line controlled base stations.

DC Line Keying

Explains DC loop keying for remote control functions.

Part H T800 Ancillary Equipment

Programming Kits

Describes the T800 Series II programming kits.

General Ancillaries

Describes RF coaxial relays and calibration test units.

External Frequency Reference

Describes kits for external frequency reference input.

Rack Frames

Details various rack frames for T800 Series II equipment.

Rack Frame Guides

Describes rack frame guides for mounting modules.

Rack Frame PCBs

Information on backplane and personality PCBs for rack frames.

Rack Frame Ancillaries

Describes extender rails and rack mounting fans.

Front Panels

Describes speaker panels and circuit breaker panels.

Power Supplies

Details mains power supply units for T800 Series II equipment.

Part I Using T850 Series II Equipment In A Series I Rack Frame

Tools Required

Lists necessary tools for the conversion procedure.

T855;856;857 SII - SI Conversion

Modifications for T850 Series II modules in Series I rack frames.

T858;859 SII - SI Conversion

Modifications for T850 Series II PAs in Series I rack frames.

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