Table Of Contents - JRC JST-135 Service Manual

Table of Contents

Introduction2
Contents2
Parts Identification3
Specifications4
Block Diagram5
Signal Flow5
Synthesizer System6
Circuit Description7
Block And Units7
Description Of Units8
Rf Tune Unit8
If Fil Unit8
Band Classification In Rf Tuning Circuit8
If Amp Unit9
Bfo And Product Detection Frequencies9
Pa Unit10
Lpf Unit10
Filter Selection Code, Lpf Unit10
Ref/Dds Unit (Cgk - 81A)11
Dds Waveforms11
Pll Ic Configuration12
Loop 1 Unit13
Loop 1 Pll Configuration13
Cpu Unit14
Af Amp Unit14
Description Of Optional Units15
Tone Sq Unit Ccl-21215
Bwc Unit Cfl-24315
Notc Follow Unit Cdd-36615
Rs 232C Interface Unit Cmh-74116
Ecss Unit Configuration16
Adjustment17
Preparation17
Presetting17
Required Measuring Instruments17
Standard Test Circuit18
Notes18
Sensitivity Measurement18
Power Output Measurement (Ssb)18
Unit Adjustment19
Pa Unit Cah-301L-219
Af Amp Unit Cbd-894L20
Cpu Unit Cdc-493A21
Display Unit Cde-57622
Loop 1 Unit Cga-14523
Ref Dds Unit Cgk-81A24
If Amp Unit Cae-22725
If Filter Unit Cfh-38A28
Rf Tune Unit Cfl-24431
Overall Adjustment33
Receiver33
Transmitter34
Level Diagram35
Assembly Drawing37
Circuit Diagram, Component Layout And Parts List40
Rf Tune Unit Cfl-244 Circuit Diagram41
Rf Tune Unit Cfl-244 Component Layout42
Parts List43
If Filter Unit Cfh-38A Circuit Diagram50
If Filter Unit Cfh-38A Component Layout51
If Amp Unit Cae-227 Circuit Diagram58
If Amp Unit Cae-227 Component Layout59
12V Pa Unit Cah-301L.2 Circuit Diagram68
12V Pa Unit Cah-301L.2 Component Layout69
Lpf Unit Cf1-122.2 Circuit Diagram73
Lpf Unit Cf1-122.2 Component Layout74
Loop 1 Unit Cga-145 Circuit Diagram79
Loop 1 Unit Cga-145 Component Layout80
Ref Dds Cgk-81A Circuit Diagram84
Ref Dds Cgk-81A Component Layout85
Cpu Unit Cdc-493A Circuit Diagram91
Cpu Unit Cdc-493A Component Layout92
Display Unit Cde-576 Circuit Diagram96
Display Unit Cde-576 Component Layout97
Display (Vr) Unit Cde-576 Circuit Diagram98
Display (Vr) Unit Cde-576 Component Layout99
Af Amp Unit Cbd-894L Circuit Diagram104
Af Amp Unit Cbd-894L Component Layout105
Tone Sq Unit Ccl-212 Circuit Diagram108
Tone Sq Unit Ccl-212 Component Layout109
Bwc Unit Cfl-243 Circuit Diagram111
Bwc Unit Cfl-243 Component Layout112
Notch Follow Unit Cdd-366 Circuit Diagram116
Notch Follow Unit Cdd-366 Component Layout117
Ecss Unit Cmf-78 Circuit Diagram119
Ecss Unit Cmf-78 Component Layout120
Rs-232C Interface Unit Cmh-741 Circuit Diagram125
Rs-232C Interface Unit Cmh-741 Component Layout126
Mother Board Cfq-2625A Circuit Diagram128
Chassis Jst-135 Circuit Diagram128
Signal Nomenclature Of Units129
Mother Board Cfq-2625A Component Layout130