Table Of Contents - Kenwood TS-950S Service Manual

Table of Contents

Contents2
Circuit Description3
Frequency Configuration3
Pll Circuit4
Display Frequency In Each Mode4
Sub-Receiver Frequency Configuration4
Reference Oscillator Circuit/Main Lo1 - Pll Unit/Af Unit4
Main Lo2 - Af Unit5
Main Lo3 - Car Unit5
Main Lo4 - Car Unit5
Sub Lo1 - Pll Unit6
Sub Lo2 - Pll Unit6
Main And Sub Car - Car Unit6
Pll System Frequency Configuration7
Pll Block Diagram8
Receiver Circuit Configuration9
Marker Signal And Afsk Signal9
Ceramic Filter Data9
Rx Bpf Selection Data9
Selection Of Filters By Mode10
Initial Settings10
Filters By Type10
Filter Ratings11
Slope-Tune If Vbt13
Main Receiver Frequency Configuration13
Band Variable Frequency Configuration13
If Vbt/Ssb-Slope-Tune13
Noise Blanker Circuits - Nb1/Nb214
Noise Blanker Circuit Configuration Diagram15
Transmitter Circuit Configuration Diagram16
Alc Circuit17
Power Control Circuit17
Protection Circuit18
Swr Protection18
Alc, Power Control And Protection Circuit18
Monitor Circuit19
Ic Protection19
Modes Other Than Fm19
Fm Mode19
Monitor Circuit Diagram20
Side Tone Generation Circuit21
Af Vbt Circuit - Af Unit21
Auto Antenna Tuner22
Af Vbt Circuit Diagram22
Basic Configuration Of Ic222
Auto Tuning Mode23
Auto Antenna Tuner Block Diagram23
Manual Tuning24
Preset Tuning24
Standby Control And Timing25
Manual Standby (Other Than Cw) Rx To Tx Switching25
Cky Generation25
Tx To Rx Switching26
Cky Down26
Pll Data And Transmit/Receive Timing Signal26
Full Break-In Timing26
Generation Of Rxb When The Key Is Up27
Rbc Generation27
Timing Chart For Full Break-In27
Timing For Semi-Break-In Operation28
Vox Operation28
Generation Of The Txb Signal When The Key Is Depressed28
Cky And Transmission Hold Circuit28
Standby Circuit29
Electronic Keyer Circuit30
Variable Weight Function30
Block Diagram Of Electronic Keyer30
Full Break-In Correction Function31
Radio Signal With/Without Full Break-In Correction31
Variable Weight Functtion By Dip Switches31
Full Break-In Correction Function Timing Chart31
Digital Control Circuit32
Encoder Circuit32
Digital Control Block Diagram33
System Reset34
Address Control34
Separation Of Address And Data, Address Decoder Circuit34
Analog Signal Input35
Display35
Sub Cpu Data Transfer35
Memory Map35
Timing Chart For Display Lighting - Grid Only36
Lh And Bi Signals For Dimmer36
Pll Data37
Key Scan38
Bandscope Signal38
Keyboard Matrix Diagram38
At Control39
When At Auto Switch Is On39
At Tune On By At Auto39
Rf Bpf Division Diagram39
If Filter Switching40
Transmit Lpf, At Band Data - Lpf Unit, At Unit40
List Of Band Data41
Functions Of Ic Pins42
Avr Unit49
Dsp Unit Outline And Configuration49
Digital Modulation Function49
Dsp Unit Block Diagram49
Af-Slope Tune50
Frequency Spectrum Of Ssb Mode50
Data Flow In The Digital Unit50
Reception Of Commands From The Main Unit50
Reset51
Bio Signal51
Analog Data And Interface51
Functions Of Gate Array Terminals51
Timing Chart For Gate Array52
Serial Data Entry And Interrupt Generation52
Analog Unit53
Mic Input High-Pass Filter53
Limiting Amplifier53
Sample And Hold54
Lpf54
D/A Converter Circuit54
D/A Output Sampling Circuit/Att54
Mixer55
Description Of Digital Signal Processing55
Ssb Modulation - Overview Of Processing55
Ssb Modulation Block Diagram55
Cw56
Am57
Fsk57
Af-Slope Tune Block Diagram57
Overview Of Processing58
Ts-950Sd Ssb Frequency Response58
Butterworth Characteristic59
Tchebycheff Characteristic59
Nyquist Band59
Transition Band Characteristic59
Description Of Components60
Switch Unit Components Description60
AVR Unit Components Description60
RF Unit Components Description61
Final Unit Components Description62
Digital Unit Components Description62
IF Unit Components Description63
AF Unit Components Description65
PLL Unit Components Description68
CAR Unit Components Description69
Filter Unit Components Description70
Control Unit Components Description71
At Unit Components Description72
Dsp Unit Components Description73
Display Unit Components Description74
Signal Unit Components Description75
Vco2: Af Unit Components Description78
Vco: Af Unit Components Description78
Vco: Pll Unit Components Description79
Avr Unit Components Description79
Vox: Af Unit Components Description79
Fm Mic Amp Af Unit/Nb2: If, Af Unit/Vco1 Pll, Car Unit Components79
Mkr: Car Unit/Sft: Car Unit Components Description80
Cwt: Control Unit Components Description80
Map: Control Unit Components Description80
Trx: Control Unit/Alc: Control Unit/Mic Amp: Switch Unit Components80
Semiconductor Data81
A/D Converter81
I/O Port82
Pll83
Programmable Frequency Divider84
Switched Capacitor Filter86
Hpf86
Analog Switch87
D/A Converter87
Dsp88
A/D Gate Array Interface89
Parts List91
Precautions About Parts List91
Ts-950S/Sd Parts List92
Switch Unit Parts List96
Avr Unit Parts List99
Rf Unit Parts List101
Final Unit Parts List106
Digital Unit Parts List108
If Unit Parts List110
Af Unit Parts List114
Pll Unit Parts List118
Car Unit Parts List123
Filter Unit Parts List127
Control Unit Parts List129
At Unit Parts List131
Display Unit Parts List133
Signal Unit Parts List134
Vco2 Parts List139
Vco Parts List140
Vox Parts List141
Fm Mic Amp Parts List141
Nb2 Parts List141
Vco1 Parts List141
Lpf Parts List142
Mkr Parts List142
Sft Parts List142
Cwt/Map/Trx Parts List142
Alc Parts List143
Mic Amp Parts List143
Rilter Unit Parts List143
Dsp Unit Parts List143
Disassembly147
Packing153
Adjustment154
Required Test Equipment154
Preparation To Adjustments155
Voltage Check156
Pll And Car Section Adjustment156
Receiver Section Adjustment158
Transmitter Section Adjustment162
Adjustment Points Diagrams167
Terminal Function169
Switch Unit Terminal Functions169
Avr Unit Terminal Functions170
Rf Unit Terminal Functions170
Final Unit Terminal Functions170
Digital Unit Terminal Functions171
If Unit Terminal Functions172
Af Unit Terminal Functions173
Pll Unit Terminal Functions174
Car Unit Terminal Functions174
Filter Unit Terminal Functions175
Control Unit Terminal Functions175
At Unit Terminal Functions176
Dsp Unit Terminal Functions177
Display Unit Terminal Functions178
Signal Unit Terminal Functions178
Level Diagram179
Pc Board Views181
Switch Unit Pc Board181
Avr Unit Circuit Diagram182
Avr Unit Pc Board183
Rf Unit Pc Board184
Rf Unit Circuit Diagram185
Final Unit Pc Board186
Filter Unit Pc Board186
Final Unit Circuit Diagram187
Digital Unit Circuit Diagram189
Digital Unit Pc Board191
Af Unit Pc Board192
Af Unit Circuit Diagram193
Pll Unit Circuit Diagram195
Pll Unit Pc Board197
Car Unit Pc Board198
Control Unit Pc Board201
Control Unit Circuit Diagram203
At Unit Pc Board204
At Unit Circuit Diagram205
Dsp Unit Pc Board206
Dsp Unit Circuit Diagram207
Display Unit Pc Board209
Display Unit Circuit Diagram211
If Unit Pc Board213
Signal Unit Pc Board214
If Unit Circuit Diagram215
Signal Unit Circuit Diagram215
Schematic Diagram217
Block Diagram223
Dsp-1/So-2 (Tcxo Unit)/Yg-455S-1 (Ssb Filter)225
Specifications226