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Tait TM8115 Service Manual
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14
Intr
oducti
on
TM8100/TM8200 Service Manual
© Tait Electronic
s Limited
June 2006
Figure 1.2
TM8100 mobile radios
rear view (25
W radio)
TM8115 radio with 2-digit-display control head
TM8110 radio with 1-digit-display control he
ad
TM8105 radio with blank contro
l head
13
15
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
Removing and Mounting the Control Head
130
Disassembling the Radio Body
131
Reassembling the Radio Body
137
Disassembling and Reassembling the Control Head
141
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
Other manuals for Tait TM8115
Operator's Manual
44 pages
User Manual
32 pages
User Guide
39 pages
5
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Tait TM8115 Specifications
General
Brand
Tait
Model
TM8115
Category
Radio
Language
English
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