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Kenwood Manuals
Repeater
TKR-750
Service manual
Table Of Contents - Kenwood TKR-750 Service Manual
Vhf fm repeater
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Also See for TKR-750
:
Programming reference manual
(83 pages)
,
Service manual
(68 pages)
,
Brochure & specs
(2 pages)
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Table Of Contents
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Contents
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Table of Contents
Front Panel View
1
Rear Panel View
1
Table Of Contents
1
General/System Set-Up
2
Personal Safety
2
Operating Features
3
Two 7-Segment Led Displays
3
Realignment
4
Modes
4
Pc Mode
4
Firmware Programming Mode
4
Installation
5
External Power Supply Connection (Rear Connectors)
5
Voice Scrambler
5
Programming
5
External Speaker (Kes-4 Or Kes-5)
6
Extracting Tool
6
Removing The Jumper Lead
6
Accessory Cabinet
7
Modification
8
Dc Source Switch
8
Desktop Repeater
8
Installing Name Plates
8
Trickle Charge For Backup Battery
9
Single Antenna
9
Disassembly For Repair
10
How To Remove The Panel Assy (Abs)
10
Circuit Description
11
Receiver Circuit
11
Front-End Circuit
11
First Mixer
11
Transmitter Circuit
12
Microphone Circuit
12
Modulation Level Adjustment Circuit
12
Squelch Circuit
12
Driver And Final Power Amplifier Circuit
13
Automatic Power Control Circuit And Transmitter
13
Rf Power Down Detect
13
Fan Action Control Circuit
13
Pll Frequency Synthesizer
14
Receiver Pll
14
Transmitter Pll
14
Unlock Detector Circuit
14
Control Circuit
15
Cpu
15
Memory Circuit
15
Display Circuit
15
Dsp
16
Base-Band Circuit
16
Rs-232C Circuit
16
Power Supply Circuit
16
Dc Power Supply Circuit
17
Dc Source Switching Relay Circuit
17
Sb Switching Relay Circuit
17
5-Tone Decode
17
Semiconductor Data
18
Main Cpu : 30622M4A-487Gp (Tx-Rx Unit Ic604)
18
Pin Function
18
Dsp : 320Vc5402Pge (Tx-Rx Unit Ic618)
19
Components Description
20
Final Unit (X45-373X-Xx)
20
Display Unit (X54-3330-21)
20
Tx-Rx Unit (X57-695X-Xx)
20
Rx Vco Unit (X58-4780-10)
21
Tx Vco Unit (X58-4790-10)
21
Parts List
22
Capacitors
22
Chip Capacitors
22
Resistors
22
Tkr-750 Parts List
23
Final Unit (X45-373X-XX) Parts List
23
Display Unit (X54-3330-21) Parts List
25
Tx-Rx Unit (X57-695X-Xx) Parts List
25
Rx Vco Unit (X58-4780-10) Parts List
31
Tx Vco Unit (X58-4790-10) Parts List
32
Exploded View
34
Packing
36
Adjustment
37
Test Equipment Required For Alignment
37
Flat Cable (36-Pin) About 256Mm
37
Test Cable For Microphone Input
37
Test Channel (Default)
38
Test Signaling
38
Adjustment Points
38
Fine-Tuning The Tkr-750
39
Adjustment Procedure At The Frequency Of The Channel To Be Used
39
Alignment Table
39
Confirmation And Alignment Of Set-Up To Prevent Receiver Desensitization
45
Confirmation Of Duplexer Alignment
45
Confirmation Of Repeater Desensitization
45
Terminal Function
46
Final Unit (X45-373X-Xx) Terminal Function
46
Display Unit (X54-3330-21) (A/2) Terminal Function
46
Tx-Rx Unit (X57-695X-Xx) (A/2): Tx-Rx Section Terminal Function
46
Tx-Rx Unit (X57-695X-Xx) (B/2): Control Section Terminal Function
47
Rx Vco Unit (X58-4780-10) Terminal Function
48
Tx Vco Unit (X58-4790-10) Terminal Function
48
Acc 25 Pin D-Sub Connector Terminal Function
49
Acc 15 Pin Connector Terminal Function
49
Interconnection Diagram
50
Tx-Rx Unit (X57-695X-Xx) (A/2)
50
Pc Board
53
Final Unit (X45-373X-Xx) Pc Board Component Side View
53
Pc Board Final Unit (X45-373X-Xx)
54
Final Unit (X45-373X-Xx) Pc Board Foil Side View (J72-0910-19)
56
Display Unit (X54-3330-21) Pc Board Component Side View (J72-0756-12)
59
Display Unit (X54-3330-21) Pc Board Foil Side View (J72-0756-12)
62
Tx-Rx Unit (X57-695X-Xx) (A/2) Pc Board Component Side View (J72-0923-19 A/2)
65
Tx-Rx Unit (X57-695X-Xx) (A/2) Pc Board Foil Side View (J72-0923-19 A/2)
68
Tx-Rx Unit (X57-695X-Xx) (B/2) Pc Board Component Side View (J72-0923-19 B/2)
71
Tx-Rx Unit (X57-695X-Xx) (B/2) Pc Board Foil Side View (J72-0923-19 B/2)
74
Rx Vco Unit (X58-4780-10) Pc Board
77
Tx Vco Unit (X58-4790-10) Pc Board View
78
Schematic Diagram - Final Unit (X45-3730-Xx) (A/2)
79
Schematic Diagram - Display Unit (X54-3330-21) (A/2)
82
Schematic Diagram - Tx-Rx Unit (X57-695X-Xx) (A/2)
85
Schematic Diagram - Tx-Rx Unit (X57-695X-Xx) (B/2)
90
Block Diagram
96
Using An External Speaker
99
Kes-5 (External Speaker)
99
Specifications
99
Specifications (K, K2 Type)
100
Specifications (E Type)
101
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Table of Contents
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