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Kenwood Manuals
Transceiver
TS-940S
Service manual
Table Of Contents - Kenwood TS-940S Service Manual
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Also See for TS-940S
:
Instruction manual
(64 pages)
,
Instruction manual
(60 pages)
,
Instruction manual
(62 pages)
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Table of Contents
Contents
1
Specifications
2
Circuit Description
3
Frequency Configuration
3
Local Oscillator Pll Circuit
6
Pll Block Diagram
7
Vco Selector Circuit
9
Heterodyne Oscillator
10
N4 Data Shift
11
N5 Data Shift
11
Receiver
13
Selection Of Rx Bpf
13
Selection Of Filters
13
Noise Blanker Circuit
15
Nb2 Timing Chart
16
Nb Gate Control Circuit
16
Cw-Vbt, Ssb-Slope-Tune
17
Rx Configuration Normal Response
17
Transmitter
18
Additional Transmitter Circuits
19
Selection Of Tx Lpf
19
Fan And Temperature Protection
19
Alc Circuit
19
Power Control Circuit
20
Speech Processor
21
Monitor, Audio Muting And Fm Mic Muting Circuit
21
Swr Automatic Arithmetic Circuit
22
Timing Circuit
22
Vox, Anti-Vox Circuit
23
Antenna Timer
25
At Unit Block Diagram
25
Tuning Motor Speed Control
26
At Tuner Band Selection Data
26
At Tuner Timing Chart
27
Digital Control Block Diagram
29
Digital B Unit Block Diagram
30
Display Data
30
Co Mpu Data
31
Digital A Unit Block Diagram
32
Digital A Unit Control Rogic Diagram
33
Power Control And At Unit
33
Keyboard Assembly
34
Mode Selector Signal Block Diagram
34
Frequency Control Data
35
Semiconductor Data
36
Lh-0080A Terminal Function
39
Terminal Function (Ic4)
41
Terminal Function (Ic5)
42
Terminal Function (Ic6)
42
Lc7800 Equivalent Circuit
43
Lc7800 Top View
43
Lc7800 Truth Table
43
Soldering Procedure For The Tip Condenser
44
Parts List: Semiconductor
45
Parts List: Ts-940S General
46
Parts List: Sw Unit
48
Parts List: Avr Unit
49
Parts List: 100W Final Unit
51
Parts List: Dc Unit
52
Parts List: If Unit
52
Parts List: Pll Unit
54
Parts List: Filter Unit
55
Parts List: Control Unit
56
Parts List: Rit Encoder Unit
58
Parts List: Digital A Unit
58
Parts List: Digital B Unit
59
Parts List: Digital C Unit
60
Parts List: At Unit
61
Parts List: Keyboard Ass'y
62
Parts List: Lcd Ass'y
62
Parts List: Main Encoder Ass'y
62
Disassembly And Assembly For Upper And Bottom Case
63
Disassembly And Cautions For Rear Panel
63
Disassembly For Front Panel
63
Disassembly And Cautions For Internal Mechanism
63
Disassembly/Packing
67
Adjustment
68
Required Test Equipment
68
Mic Terminals
68
Preparation For Adjustment
69
Voltage Adjustment And Configuration
69
Control Adjustment
69
Rx Adjustment
72
Tx Adjustment
75
Microprocessor Operation Check
79
Top View
81
Bottom View
82
Level Diagram
83
Pc Board Views
91
Circuit Diagram
92
Component Side View
94
Antenna Tuner Disassembly
105
Speaker Schematic Diagram
105
Speaker Disassembly/Packing
106
Voice Synthesizer Unit
107
Talk Speed Selection
107
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Table of Contents
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