Kenwood TL-922 Service Manual

Explicit definitions for manual terminology and essential safety warnings.

Explains the circuit operation of the linear power amplifier stages, including input matching and output networks.

Details critical safety warnings and notes before performing disassembly or adjustments on high-voltage circuits.

Illustrates and lists parts for disassembling the chassis and front panel assembly.

Details how to set the input voltage for the 240/120V version using terminal boards and shorting bars.

Details how to set the input voltage for the 220/240V version using terminal boards and shorting bars.

Steps to diagnose and fix issues where the unit does not power on, checking fuses and switches.

Steps to diagnose and fix problems with meter readings or lack thereof, checking specific components.

Steps to diagnose and fix issues related to the absence of high voltage, checking safety switches.

Steps to diagnose and fix problems with relay function, checking power and control circuits.

Steps to diagnose and fix problems with tuning the amplifier, checking coils and load impedance.

Steps to diagnose and fix issues where the amplifier produces no output power, checking tubes and coils.

Steps to diagnose and fix issues with the Automatic Level Control (ALC) output, checking diodes and cables.

Lists the specific instruments needed for performing adjustments and calibration procedures.

Outlines essential safety precautions and preparation steps before undertaking any adjustments.

Presents the main schematic diagram illustrating the overall circuit of the TL-922 linear amplifier.

Continues and details the schematic diagram, showing component connections and values.

Presents the schematic diagram specific to the W Type version of the TL-922 amplifier.