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Details of regional destinations for the transceiver models.
Table outlining unit configurations for different models and destinations.
Information regarding optional band units for the transceiver.
Describes the problem addressed by the service bulletin.
Additional information or clarifications related to the service bulletin.
Details the issue of limited 800 MHz band reception.
Explains the modification to enable 800 MHz band reception.
Describes symptoms related to microprocessor lock-up or incorrect operation.
Highlights specific serial numbers and circuit changes for the bulletin.
Reports during RC operation, the 28 MHz and 50 MHz modules do not transmit.
Provides steps to replace IC1 on Control Unit and Display Unit.
Describes the problem of a popping noise when the squelch opens or closes.
Details the suggested changes to reduce or eliminate the noise.
Steps for performing the Mars/CAP modification.
Steps for performing the Mars/CAP modification.
Describes the frequency configuration of the 28 MHz TX-RX unit.
Explains the signal path for the 28 MHz receive channel.
Describes the frequency configuration of the 50 MHz TX-RX unit.
Describes the frequency configuration of the 220 MHz TX-RX unit.
Describes the frequency configuration of the 430 MHz TX-RX unit.
Describes the frequency configuration of the 1200 MHz TX-RX unit.
Details the digital control unit's functions and registers.
Describes the functions of the panel unit components.
Lists specifications for input/output ports of the control unit.
Component descriptions for the control unit (Part 1).
Electrical data for 2SC3240 power transistor.
Electrical data for S-AV17 power module.
List of capacitor types and their specifications.
List of resistor types and their specifications.
Parts list specific to the TM-742 model.
Parts list for the control unit.
Parts list for the 144M TX-RX unit.
Parts list for the UT-28S unit.
List of test equipment needed for adjustments.
Adjustment procedures for common sections of the radio.
Adjustment procedures for the receiver section.
Adjustment procedures for the transmitter section.
Adjustment details for the 430/440 MHz band.
Adjustment details for the 1200 MHz band.
Adjustment details for the 28 MHz band.
Adjustment details for the 50 MHz band.
PC board layout for the control unit.
PC board layout for the display unit.
Schematic diagram for the control unit.
Schematic diagram for the display unit.
Schematic diagram for the 1200M TX-RX unit.
Schematic diagram for the 430/440MHz TX-RX unit.
Schematic diagram for the 220M TX-RX unit.
Schematic diagram for the 28M TX-RX unit.
Schematic diagram for the 50M TX-RX unit.
PC board layout for the control unit.
PC board layout for the display unit.
Block diagram for the control unit.
Block diagram for the display unit.
Block diagram for the 28M TX-RX unit.
Block diagram for the 50M TX-RX unit.
Parts list for the MC-45 microphone.
Schematic diagram for the MC-45 microphone.
Detailed specifications for different models and units.
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