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TR-751A
Kenwood TR-751A Manuals
Manuals and User Guides for Kenwood TR-751A. We have
5
Kenwood TR-751A manuals available for free PDF download: Service Manual, Instruction Manual
Kenwood TR-751A Service Manual (84 pages)
144MHz All Mode Transceiver
Brand:
Kenwood
| Category:
Transceiver
| Size: 46.33 MB
Table of Contents
Circuit Description
2
Frequency Configuration
2
TR-751A/E PC Board Chart
2
Crystal Filter 10F2.2S (L71-0249-05) Characteristics (Composit Unit (RX) XF1)
2
Receiver System
3
10.695Mhz (L71-0216-05) Characteristics (Composit Unit (RX) XF201
3
Front End and AGC Circuit
3
General
3
SSB Squelch Circuit
4
AGC Circuit Block Diagram
4
AGC Attenuation Comparison
4
Transmitter System
5
CW Circuit Description
5
CW Waveform
5
ALC and SWR Protection Circuits
6
PLL Synthesizer
7
PLL System Block Diagram
7
Digital Control Unit
8
Control Unit Block Diagram
8
MPU Interface Circuits
9
Reset Backup Circuit
9
Interface between Mpus and Reset Beckup Circuit
9
Key, Switch and Encoder Citcuits
10
Microphone Input Logic
10
Mode Voltage Switching and Standby Circuit
11
Other I/O Circuits
11
Test Points
12
Microprocessor Clock
12
Connectors
12
Test Pins
12
Μpd7507Sct-215 (MPU-III) Pin Functions (Control Unit IC4)
13
Μpd7514G-143-12 (MPU-II) Pin Functions (LCD Assembly IC301)
13
Element Functions
14
Final Unit (X45-1490-11)
14
Control Unit (X53-1460-XX)
14
LCD Assembly (W02-037X-05)
16
Composite Unit (PLL, TX) (X60-1310-XX)
16
CW Break-In (X59-1130-00)
18
Composite Unit (RX) (X60-1320-XX)
18
FM Microphone Amplifier (X59-1090-00) S/No. 705-707XXXX: W, T
20
-6V DC-DC (X59-1100-00)
20
AF Preamplifier (X59-1110-00)
20
Squelch Switch (X59-1120-00)
20
Parts List
21
Capacitors
21
Resistors
21
Dimension
21
Semiconductor
22
TR-751A/E General
23
Final Unit (X45-1490-11)
25
Control Unit (X53-1460-XX)-11: K, M1 -21: M2 -51: T -61: W
26
Sub VCO (X58-1000-XX) -00: W, T -11: K, M1, M2
30
FM MIC AMP (X59-1090-00) S/No. 705-707XXXX: W, T
30
-6V DC-DC (X59-1100-00)
30
Af Pre Amp (X59-1110-00)
31
Squelch Switch (X59-1120-00)
31
CW Break in (X59-1130-00)
31
FM MIC AMP (X59-3000-00) S/No. 705-707XXXX: K, M1, M2 FM; MIC AMP (X59-3000-01) S/No. 708XXXX-: K, M1, M2, W, T
31
Composite Unit (PLL, TX) (X60-1310-XX) -11: K, M1, M2 -01: W, T
32
Composite Unit (RX) (X60-1320-XX) -00: W, T -11: K, M1, M2
40
Exploded View
50
Level Diagram
53
RX Section
53
TX Section
53
Adjustment
54
Required Test Equipment
54
Preparation
54
MIC Terminals (View from Front Panel Side)
54
TX-RX Adjustment (Common)
55
PLL System Adjustment
55
Receiver System Adjustment
56
Transmitter System Adjustment
58
Microprocessor Operation Check
61
Top View
62
Bottom View
63
Block Diagram
64
PC Board Views
65
Control Unit (X53-1460-XX) -11: K, M1 -21: M2 -51: T -61: W
65
Component Side View
65
Foil Side View
66
Circuit Diagram
68
SUB VCO (X58-1000-XX) -00: W, T -11: K, M1, M2 Component Side View
69
Squelch Switch (X59-1120-00) Component Side View
69
FM MIC AMP (X59-1090-00) Component Side View
69
CW Break in (X59-1130-00) Component Side View
69
Final Unit (X45-1490-11) Component Side View
70
Final Unit (X45-1490-11) Foil Side View
70
Composite Unit (PLL, TX) (X60-1310-XX) -11:K, M1, M2 -01: W, T Component Side View
71
Composite Unit (PLL, TX) (X60-1310-XX) -11:K, M1, M2 -01: W, T Foil Side View
72
Composite Unit (RX) (X60-1320-00) S/No. 705-707XXXX: W, T Component Side View
73
Composite Unit (RX) (X60-1320-00) S/No. 705-707XXXX: W, T Foil Side View
74
Composite Unit (RX) (X60-1320-XX) Foil Side View -00: W, T -11: K, M1, M2 S/No. 708XXXX-: K, M1, M2, W, T
75
Composite Unit (RX) (X60-1320-11) S/No. 705-707XXXX: K, M1, M2
76
Schematic Diagram
78
Composite Unit (RX) (X60-1320-XX) Components Side View -00: W, T -11: K, M1, M2 S/No. 708XXXX-: K, M1, M2, W, T
80
Schematic Diagram
82
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Kenwood TR-751A Service Manual (83 pages)
144MHz ALL MODE TRANSCEIVER
Brand:
Kenwood
| Category:
Transceiver
| Size: 3.37 MB
Table of Contents
Circuit Description
2
Frequency Configuration
2
Receiver System
3
Transmitter System
5
Pll Synthesizer
7
Digital Control Unit
8
Parts List
21
Final Unit
21
Control Unit
21
Exploded View
50
Required Test Equipment
54
Detector Circuit
56
Top View
62
Bottom View
63
Block Diagram
64
Pc Board Views
65
Schematic Diagram
78
Kenwood TR-751A Instruction Manual (58 pages)
430MHz/144MHz ALL MODE TRANSCEIVER
Brand:
Kenwood
| Category:
Transceiver
| Size: 2.55 MB
Table of Contents
Table of Contents
3
Before Operation
4
Specifications and Accessories
5
Specifications
5
Accessories
6
Installation and Connection
7
Installation
7
Operation
10
Controls and Their Functions
10
Reception
15
Transmission
18
Memory
18
Repeater
22
Voice Synthesizer
31
Microphone Up/Dwn Switch
32
General Information
33
Service
33
Cleaning
33
In Case of Difficulty
33
Microprocessor Back-Up Lithium Battery Replacement
34
Ordering Spare Parts
34
Adjustments
35
Tone Unit
51
Voice Synthesizer Unit
51
Other Accessories
52
Reference
54
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Kenwood TR-751A Instruction Manual (58 pages)
all mode
Brand:
Kenwood
| Category:
Transceiver
| Size: 5.06 MB
Kenwood TR-751A Instruction Manual (58 pages)
all mode transceivers
Brand:
Kenwood
| Category:
Transceiver
| Size: 5.06 MB
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