Tait Electronics TM8252 Manuals

Manuals and User Guides for Tait Electronics TM8252. We have 1 Tait Electronics TM8252 manual available for free PDF download: Service Manual

Tait TM8252 Service Manual

Tait TM8252 Service Manual (578 pages)

TM8100 series; TM8200 series

Brand: Tait | Category: Radio | Size: 33.34 MB

Table of Contents

Table of Contents

3
- Preface
  5
  - Scope of Manual
    5
  - Hardware and Software Versions
    5
  - Issue
    5
  - Associated Documentation
    6
  - Publication Record
    7
  - Alert Notices
    7
  - Abbreviations
    8
- Chapter 1 Description of the Radio
  11
Chapter 1 - Description of the Radio

12
- Introduction
  13
  - Frequency Bands
    15
  - RF Output Power
    15
  - Accessories
    16
  - Product Codes
    17
  - Labels
    18
  - Specifications
    18
- Description
  19
  - Mechanical Design
    19
  - User Interfaces
    35
  - Connectors
    36
  - Hardware and Software Architecture
    45
  - Operation in Receive Mode
    50
  - Operation in Transmit Mode
    55
- Circuit Descriptions
  63
  - Transmitter Circuitry
    65
  - Receiver Circuitry
    68
  - Frequency Synthesizer Circuitry
    72
  - Frequency Control Loop
    76
  - CODEC and Audio Circuitry
    77
  - Power Supply Circuitry
    81
  - Interface Circuitry
    87
  - Digital Board
    89
  - Control-Head Board with Graphical Display
    92
  - Control-Head Board with 1-, 2- or 3-Digit Display
    95
  - RJ45 Control Head
    98
- Chapter 2 Servicing the Radio
  99
Chapter 2 - Servicing the Radio

100
- General Information
  103
  - Repair Levels and Website Access
    103
  - Tools, Equipment and Spares
    106
  - Servicing Precautions
    108
  - Test Equipment Setup
    111
  - Replacing Board Components
    113
  - Shielding Cans and Connectors
    114
  - SMT Repair Techniques
    116
  - Computer-Controlled Test Mode (CCTM)
    118
  - Defining Frequency Bands
    126
  - Visual and Audible Indications
    127
- Disassembly and Reassembly
  129
- Servicing Procedures
  149
  - Initial Tasks
    149
  - Final Tasks
    157
- Power Supply Fault Finding
  163
- Interface Fault Finding
  173
- Frequency Synthesizer Fault Finding
  179
  - Initial Checks
    180
  - Power Supplies
    183
  - Phase-Locked Loop
    192
  - Loop Filter
    198
  - Receive VCO and Related Circuitry (UHF Radios)
    203
  - Transmit VCO and Related Circuitry (UHF Radios)
    212
  - VCO and Related Circuitry (VHF Radios)
    217
  - Power Supply for FCL
    227
  - VCXO and TCXO Outputs
    230
  - Signals at TP501 and TP502
    233
  - VCXO and CODEC Circuitry
    237
- Receiver Fault Finding
  239
  - Faulty Receiver Sensitivity
    240
  - Excessive Loss of Sensitivity
    242
  - Moderate or Slight Loss of Sensitivity
    246
  - Incorrect RSSI Readings
    250
  - Faulty Radio Mute
    253
  - High Receiver Distortion
    256
- Transmitter Fault Finding (40W/50W)
  259
  - Power Supplies
    262
  - Transmitter RF Power
    269
  - Biasing of PA Driver and Pas
    280
  - RF Signal Path
    302
- Transmitter Fault Finding (25W)
  323
  - Power Supplies
    326
  - Transmitter RF Power
    332
  - Biasing of PA Driver and Pas
    342
  - RF Signal Path
    361
- CODEC and Audio Fault Finding
  381
  - Power Supplies
    382
  - Faulty Speaker Audio
    384
  - No Speaker Audio at Auxiliary Connector
    391
  - Faulty Receiver
    396
  - Faulty Modulation
    398
  - Faulty Modulation Using Auxiliary Connector
    402
- Fault Finding of Control Head with Graphical Display
  405
  - CCTM Commands
    406
  - Power Supply Faulty
    408
  - LCD Display Faulty
    410
  - LCD Backlighting Faulty
    412
  - LCD Heating Faulty
    413
  - Function Key Leds or Status Leds Faulty
    414
  - Keypad Backlighting Faulty
    416
  - On/Off Key Faulty
    418
  - Function, Scroll, or Selection Keys Faulty
    420
  - 14.10 Speaker Faulty
    422
  - 14.11 Volume Control Faulty
    424
  - 14.12 PTT Faulty
    426
- Fault Finding of Control Head with 1- 2- or 3-Digit Display
  429
  - Display Faulty but Not Leds
    432
  - Some Leds Faulty
    433
  - All Leds Faulty
    434
  - Display and All Leds Faulty
    434
  - Some but Not All Keys Faulty
    435
  - All Keys Faulty
    435
  - Speaker Faulty
    436
  - Volume Control Faulty
    436
- Spare Parts
  437
- Chapter 3 Accessories
  447
Chapter 3 - Accessories

448
- TMAA01-01 Line-Interface Board
  451
  - Operation
    451
  - Configuring the Line-Interface Board
    451
- Installing the Line-Interface Board
  455
- Programming Information
  458
- Interface Specification
  459
- Line-Interface Board Application
  460
- Line-Interface Board Specifications
  461
- Circuit Description
  463
- PCB Information
  465
- TMAA01-02 RS-232 Board
  471
  - Operation
    471
- Installing the RS-232 Board
  472
- Interface Specification
  474
- PCB Information
  475
- TMAA01-05 Options-Extender Board
  479
  - Changing the Options-Extender Links
    479
- Installing the Options-Extender Board
  481
- Interface Specification
  483
- PCB Information
  485
- TMAA02-02 DTMF Microphone
  489
  - Installation
    489
- Adjustment
  490
- Radio Programming
  490
- Interface Specification
  491
- Circuit Description
  492
- TMAA02-06 Support Kit for Concealed & Dynamic Microphones
  493
  - Installation
    493
- Radio Programming
  494
- Interface Specification
  495
- PCB Information
  496
- TMAA02-07 Concealed Microphone
  501
  - Installation
    501
- Radio Programming
  502
- TMAA02-08 Keypad Microphone
  503
  - Operation
    503
- Installation
  504
- Interface Specification
  505
- Radio Programming
  505
- TMAA03-02 Security Bracket
  507
- Installation Planning
  508
- Installing the Security Bracket and Radio
  508
- Disassembling the Security Bracket
  509
- Removing a Radio from the Security Bracket
  509
- Replacing the Radio in the Security Bracket
  509
- Re-Ordering Extra Parts
  510
- Installing a Remote Kit
  511
  - Installation
    511
- Circuit Description
  517
- Servicing the Remote Kit Parts
  518
- PCB Information
  520
- Installing an Enhanced Remote Kit
  527
  - Installation
    527
- Circuit Description
  533
- Servicing the Remote Control-Head Installation Parts
  534
- PCB Information
  536
- TMAA04-04 Crossband Linking Cable
  543
  - Installation
    543
  - Radio Programming
    543
- Interface Specification
  545
- Operational Testing
  545
- PCB Information
  546
- TMAA04-05 Ignition Sense Kit
  549
  - Installation
    549
    
    Radio Programming
    549
- TMAA10-01 Desktop Microphone
  551
  - Operation
    551
    
    Installation
    551
  - Adjustment
    552
  - Interface Specification
    552
  - Circuit Description
    553
- TMAA10-02 Handset
  555
  - Installation
    555
  - Radio Programming
    557
  - Interface Specification
    558
- TMAA10-03 and TMAA10-06 High-Power Remote Speakers
  559
  - Installation
    559
- TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit
  561
  - VOX Operation (TMAA10-05 Hands-Free Kit)
    561
  - Installation
    562
  - 32.3 Radio Programming for the TMAA10-04 Remote PTT Kit
    563
  - 32.4 Radio Programming for the TMAA10-05 Hands-Free Kit
    564
  - Interface Specification
    564
  - Circuit Description
    565
  - PCB Information
    566
- TMAA10-07 Desktop Microphone
  569
  - Operation
    569
    
    Installation
    569
  - Adjustment
    570
  - Radio Programming
    570
  - Interface Specification
    570
- TOPA-SV-024 Test Unit
  571
  - Test Equipment Setup
    571
  - Operation
    573
  - PCB Information
    575

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