Table Of Contents - Kenwood Trio TS-520 Service Manual

Table of Contents

Contents2
External View3
Ts-520 Front Panel Parts3
Ts-520 Rear Panel Parts3
Ts-520 Side Controls3
Parts Alignment4
Ts-520 Top View Parts4
Ts-520 Bottom View Parts4
Trouble-Shooting5
Receiver Section5
Transmitter Section7
Maintenance And Alignment8
Other Circuits8
General Information8
Replacing The Relays8
Replacing The Electrolytic Power Supply Capacitors9
Disassembly Of The Coil Pack9
Replacing The Vox Relay9
Replacing C31 And C329
Removing The Vfo Section10
Removing The Front Panel10
Vfo Assembly Chassis Screws10
Vfo Assembly10
Changing The Pilot Lights11
Replacing The Meter11
Changing The Paddle Switches11
Level Diagrams11
Service Information12
Avr Adjustment12
Band Pass Filter Adjustment12
Receiver Section Level Diagram12
B.p.f. Wave Detector13
Band Pass Filter Test Circuit13
Carrier Board Adjustment14
Coil Pack Alignment14
Wwv Circuit Alignment14
If Transformer Adjustment14
Trap Coil Adjustment15
Carrier Balance15
S-Meter Adjustment15
Rit Adjustment15
Vfo Adjustment16
Bias Adjustment16
Generator Board If Transformer Adjustment16
Rf Meter Adjustment16
Sidetone Output Adjustment17
Parts List Of Ts-520 (Y54-1110-00)18
Parts List Of Driver Coil Pack (X40-0017-01)20
Parts List Of Osc Coil Unit (X40-0019-00)20
Parts List Of Mix Coil Unit (X40-0018-01)20
Parts List Of Vfo Unit (X40-1070-00)20
Parts List Of Fixed-Channel Avr Unit (X43-1100-00)21
Parts List Of Rectifier Unit (X43-1090-00)22
Parts List Of Hv Unit (X43-1110-00)22
Parts List Of Rf Unit (X44-1080-00)22
Parts List Of Ant Coil Unit (X44-1090-00)23
Parts List Of Dc-Dc Converter Unit (X46-1000-00)23
Parts List Of If Unit (X48-1060-00)23
Parts List Af Unit (X49-0008-01)25
Parts List Of Carrier Unit (X50-009-01)25
Parts List Of Marker Unit (X52-0005-01)26
Parts Lists Of Generator Unit (X52-0010-01)26
Parts Lists Of Vox Unit (X54-0001-00)26
Parts Lists Of Nb Unit (X54-1080-10)27
Parts Lists Of Fan Unit (X54-1100-01)27
Parts Lists Of Indicator Unit (X54-1120-00)28
Pc Board29
Af Board (X49-0008-01) Diagram29
Antenna Coil Board (X44-1090-00) Diagram30
Carrier Board (X50-0009-01) Diagram30
Driver Coil Board (X40-0017-01) Diagram31
Fixed Channel-Avr Board (X43-1100-00) Diagram31
Generator Board (X52-0010-01) Diagram32
Hv Board (X43-1110-00) Diagram32
If Board (X48-1060-00) Diagram33
Marker Board (X52-0005-01) Diagram34
Mixer Coil Board (X40-0018-01) Diagram34
Nb Board (X54-1080-10) Board35
Oscillator Coil Board (X40-0019-01) Diagram35
Rf Board (X44-1080-00) Diagram36
Rectifier Board (X43-1090-00) Diagram37
Vox Board (X54-0001-00) Diagram37
Vf-52038
Top View Parts38
Specification38
Parts Lists Of Vfo-520 (Y57-1020-00)39
Parts List Of Indicator Unit (X54-1120-01)39
Vfo-520 Schematic Diagram40
Sp-520 External View41
Sp-520 Parts List (Y59-1000-00)41
Sp-520 Specification41
Schematic Diagram (Rf Unit)42
Schematic Diagram (Ts-520)43