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Kenwood Manuals
Transceiver
TS-850S
Service manual
Table Of Contents - Kenwood TS-850S Service Manual
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Also See for TS-850S
:
Service manual
(220 pages)
,
Instruction manual
(86 pages)
,
Replacement manual
(2 pages)
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Table Of Contents
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Table of Contents
Control Locations
1
Contents
2
Circuit Description
3
Frequency Configuration
3
Signal System Frequency Configuration
3
Display Frequncy In Each Mode
4
Pll System Frequency Configuration
4
Local Oscillator Circuit
5
Reference Oscillator Circuit
5
Pll Block Diagram
5
Car Unit
6
Lo2
6
Lo1 Pll Loop
6
Pll Data
6
Lo3 Generation
7
Car Generation
7
Mcar Generation
7
Ston Generation
7
Dds
8
Chopper
8
Receiver Circuit Description
9
Rf Band-Pass Filter Switching Signal Decoding
10
Rf Amplifier Switching And Aip Switching
10
Noise Blanker
11
Noise Blanker Circuit
11
If Filter Selection
12
Mcf (L71-0401-05) (Rf Unit Xf1)
12
Mcf (L71-0222-05) (Rf Unit Xf2)
12
Mcf (L71-0266-05) (Rf Unit Xf3)
12
Transmitter Circuit
13
Transmitter Circuit Block Diagram
14
Power Control And Power Settings
15
Filter Unit
16
Voice Memory Operation
16
Transmit Low-Pass Filter, At Band Data
16
Tx Lpf And At Band Data
16
At Unit
17
Auto Antenna Tuner
17
Auto Tuning Mode
17
Block Diagram Of Auto Antenna Tuner
17
Manual Tuning
18
Preset Tuning
18
Standby Control Timing
19
Manual Standby (Except Cw)
19
Txb And Cky Generation
19
Txb And Cky Down
19
Full Break-In Operation Timing
20
Rbc Generation
20
Timing Chart For Full Break-In
20
Standby Timer Circuit
21
Timing For Semi Break-In Operation Txb Generation By Key Down
23
Standby From The Data Communication Terminal
23
Digital Control Unit
24
Digital Control Block Diagram
24
Encoder Circuit
25
System Reset, Ram Backup
25
Address Control
26
Memory Map
26
Analog Signal Input
27
Display
27
Pll And Dds Data
27
Key Scan
27
At Control
28
If Filter Switching
28
Receive Band-Pass Filter Selection
29
Pll Vco Data
29
Electronic Keyer Control
29
Function Of Ic Pins
31
Setting The Extended Functions
35
Setting For Full-Morse Function
35
Setting For Adjustment Mode
35
Treat Construction
35
Description Of Components
36
Rf Unit (X44-3120-00)
36
Final Unit (X45-1470-02)
38
Digital Unit (X46-308X-Xx)
38
If Unit (X48-3080-00)
39
Pll Unit (X50-3130-00)
41
Car Unit (X50-3140-00)
42
Filter Unit (X51-3100-00)
43
At Unit (X53-3340-00)
43
Semiconductor Data
45
I/O Port: Mb89363B (Digital Unit Ic1,3)
45
Block Diagram
45
Terminal Function
46
I/O Port: Cxd1095Q (Digital Unit Ic2)
47
Terminal Connection
47
A/D Converter: Mb4052 (Digital Unit Ic5)
49
Channel Select
49
Range Select
49
Wiring Example When Expanding The Range
49
Cpu: Pd78C10G-36 (Digital Unit Ic6)
50
Ram: Tc5564Apl-15 (Digital Unit Ic13)
52
Encoder Gate Array: Lz92K37 (Digital Unit Ic14)
52
Parts List
53
Parts List Switch Unit A (X41-3130-00)
56
Parts List Switch Unit B (X41-3140-00)
57
Parts List Rf Unit A (X44-3120-00)
57
Parts List Final Unit (X45-1470-02)
66
Parts List Digital Unit (X46-308X-Xx)
68
Parts List If Unit (X48-3080-00)
72
Parts List Pll Unit (X50-3130-00)
78
Parts List Car Unit (X50-3140-00)
81
Parts List Filter Unit (X51-3100-00)
83
Parts List At Unit (X53-3340-00)
85
Parts List Vco2 (X58-3390-03)
87
Parts List Vox (X59-1080-00)
87
Parts List Dc-Dc (X59-1100-00)
87
Parts List Fm Mic (X59-3000-03)
87
Parts List Trx (X59-3680-01)
88
Parts List Agc (X59-3820-00)
88
Parts List Sm Amp (X59-3830-00)
88
Parts List Mic Sw (X59-3840-00)
88
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Table of Contents
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