Kenwood TR-9000 Service Manual

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SPECIFICATIONS...
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Kenwood TR-9000 Specifications

General

Frequency Range	144-148 MHz
Supply voltage	13.8V DC
Tuning Steps	5 kHz
Power Supply	13.8V DC
Sensitivity	0.25 µV (10 dB S/N)

Summary

Circuit Description

RX Section

Detailed description of the receiver circuit, including front end, mixer, filters, and AF amplifier stages.

TX Section

Description of the transmitter circuit, covering microphone amplification, modulation, and output stages.

PLL Unit (X50-1620-11)

Description of the Phase Locked Loop unit, its VCO, frequency division, and phase comparison circuits.

CONTROL Unit (X53-1160-11)

Description of the control unit, micro-computer functions, indicator, and interface circuits.

PC Board Views

Final Unit (X45-1140-00) Layout

PLL Unit (X50-1620-00) Layout

Control Unit (X53-1160-11) Layout

TX Unit (X56-1370-10) Layout

RX Unit (X55-1260-11) Layout

Parts List

Final Unit Parts

PLL Unit Parts

Control Unit Parts

TX Unit Parts

Reference Data

RX Performance Data

Graphs for receiver sensitivity, IMD, deviation.

TX Performance Data

Graphs for output power and spurious responses.

PS-20 Specifications

Power Supply Specifications

Adjustments

Test Equipment and Preparation

RX Section Adjustments

Detailed steps for adjusting receiver parameters like RG1 voltage, helical, sensitivity, and S meter.

TX Section Adjustments

Detailed steps for adjusting transmitter parameters like CAR level, FM deviation, and power output.

Micro-computer Operational Checks

Verifying control functions and frequency accuracy.