Table Of Contents - Kenwood TK-D240 Service Manual

Table of Contents

Table Of Contents1
Specification3
Precaution5
Specific Service Instructions5
System Set-Up5
Realignment5
Pc Mode6
Connection Procedure6
Kpg-22A Description6
Kpg-22U Description6
Circuit Description7
Frequency Configuration7
Firmware Upgrade In Firmware Programing Mode7
Receiver System7
Audio Amplifier Circuit8
Squelch Circuit8
Transmitter System8
Microphone Amplifier Circuit8
Frequency Synthesizer Unit9
Frequency Synthesizer9
Control Circuit9
Frequency Shift Circuit9
Memory Circuit10
Low Battery Warning10
Key Input10
Signaling Circuit10
Power Supply11
Dmr Receiving11
For Digital Data Mode11
For Digital Voice Mode12
Dmr Transmitting12
Semiconductor Data12
Terminal Function15
Main Unit (15
Sp/Mic Connector Specification15
Disassembly16
Precautions For Disassembly16
Removing The Case Assembly From The Chassis16
Removing The Holder Assembly From The Chassis16
Precautions For Reassembly17
Assembling The Battery Release Lever17
Attaching The Positive Terminal To The Chassis17
Mounting The Chassis To The Case Assembly18
The Nuts Of The Volume Knob And Channel Knob18
Attaching The Antenna Receptacle To The Chassis18
Adjustment19
K,M Type19
Test Equipment Required For Alignment19
Antenna Connector Adapter19
Frequency And Signaling20
Adjustment Item Supplement20
Preparations For Tuning The Transceiver20
Test Frequency20
Adjustment Item21
Radio Check Section22
Common Section23
Transmitter Section24
Necessary Deviation Adjustment Item For Each Signaling And Mode29
Receiver Section30
E,E2 Type32
Repair Jig (Chassis)32
Battery Jig32
Troubleshooting46
Replacing Main Unit46
Supplied Accessories Of "Service Main Unit"46
After Changing The Pcb46
Schematic Diagram47
Printed Circuit Board49
Component Side View49
Level Diagram51
Block Diagram52
Parts List53
Exploded View Of General Assembly And Parts List54
General Assembly55
Electrical Parts List56
Packing Materials And Accessories Parts List62