Realistic TRC-216 User Manual

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Realistic TRC-216 Service Manual
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Realistic TRC-216 Specifications

General

Channels	23
Power Output	4 Watts
Modulation	AM
Type	CB Radio
Power Source	12V DC
Frequency Range	26.965 MHz - 27.405 MHz
Antenna	Telescoping

Summary

Specifications

Transmitter Specifications

Details transmitter power, modulation, frequency tolerance, and current drain.

Receiver Specifications

Details receiver sensitivity, selectivity, bandwidth, squelch, and current drain.

General Specifications

Covers antenna impedance, frequency range, frequency control, speaker, and jacks.

Disassembly

Front Case Removal

Steps to remove the front case by unscrewing and detaching parts.

Block Diagram

Principles of Operation

PLL Circuit Operation

Explains the Phase Lock Loop circuit, its components, and operation for channel synthesis.

Alignment Preparation

Alignment Locations and Points

AF Operation Check Before Alignment

Receiver Operation Check Before Alignment

Transmitter Operation Check Before Alignment

PLL Section Alignment Chart

Transmitter Alignment Chart

Receiver Alignment Chart

Troubleshooting

LCD and Battery Issues

Details troubleshooting for LCD display problems and battery heating issues.

Main Printed Circuit Board Top View

Main Printed Circuit Board Bottom View

LCD Printed Circuit Board Top View

LCD Printed Circuit Board Bottom View

Wiring Diagram

Electrical Parts List

Capacitors

Lists capacitor components with their specifications and part numbers.

Ceramic Filters and Diodes

Lists ceramic filters and diodes with specifications and part numbers.

Integrated Circuits and Coils

Lists integrated circuits and coils with specifications and part numbers.

Resistors

Lists resistor components with their specifications and part numbers.

Switches, Controls, and Crystals

Lists switches, variable resistors, thermistors, and crystals with specifications.

Miscellaneous Electrical Parts

Lists miscellaneous electrical components such as screws.

Mechanical Parts List

Accessories, Cases, and Brackets

Lists accessories, cases, brackets, straps, and nuts for the device.

Jacks, Knobs, and PCB Assemblies

Lists jacks, knobs, PCB assemblies, covers, and heat sinks.

Shields and Spacers

Lists shield plates, VCO shields, spacers, and screws.

LCD Pin Configuration

Semiconductor Lead Identification

IC Pin Configurations

Exploded View