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Table Of Contents - Kenwood TS-820 Service Manual

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Service manual (109 pages)

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Operating manual (45 pages)

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Manual (11 pages)

Table Of Contents

Table of Contents

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Table of Contents

Ts-820 Specifications3

Ts-820 Block Diagram4

Circuit Description6

Functional Description7

Single Conversion System7

Typical Double Conversion Type8

Single Conversion Type8

Ts-820 Frequency Diagram8

Rf Speech Processor9

Monitoring Circuit9

If Shift Circuit12

Rtty Frequency13

Switching Of Fsk, Wide-Narrow13

Rf Negative Feedback And Neutralizing Circuit14

Parts Alignment16

How To Remove Panel35

How To Remove Vfo35

Mono-Scale Dial Adjustment35

How To Check Counter Assembly36

How To Remove Vox/Vr Unit36

How To Remove Rit And Rf Att Switches36

How To Remove Meter36

How To Remove Paddel Switch37

How To Disconnect Lead From Miniplug37

Sectional View Of Vfo Shaft37

Troubleshooting38

Level Diagram42

Test Equipment Required43

Rf Vacuum-Tube Voltmeter43

Preparatory Work44

Adjustment Of Power Supply44

9V Adjustment44

Rf1 Adjustment44

Adjustment Of Receiver Section45

Carrier Unit Adjustment45

Voltage Adjustment Of Vco45

Adjustment Of Antenna And Mix Coil45

Ift Adjustment46

Adjustment Of If Trap Coil46

Carrier Balance Adjustment47

Adjustment Of Noise Blanker (Nb) Circuit47

Adjustment Of S Meter47

Rit Adjustment47

Adjustment Of Counter48

Vfo Adjustment48

Frequency Adjustment Of Counter Standard Oscillator48

Adjustment Of Transmitter Section49

Adjustment Of Counter Input Level49

Bias Adjustment49

Adjustment Of Carrier Suppression49

Adjustment Of Carrier Point50

Adjustment Of Speech Processor50

Adjustment Of Monitoring Level50

Pll Adjustment51

Adjustment Of Vox Operation51

Adjustment Of Rf Meter51

Adjustment Of Pd Unit51

Adjustment Of Balance Vr52

Adjustment Of Vco Unit52

Adjustment Of Vco Coil52

Reference Data53

Adjustment Of Trap Coil53

Ts-820 Modification For Marine Band53

Circuit Diagram54

Schematic Diagram68

Connector Terminals69

Specifications70

Block Diagram70

Connection With Ts-82070

Dg-1 Specifications72

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