Kenwood-th 22A.AT .ES-SERVICE-MANUAL – Service manual (PDF)

Erik from ManualsPlus — Sun, 07 Dec 2025 15:45:44 +0000

The Kenwood TH-22A/AT/E(S) service manual provides detailed instructions for setting up and operating the 144MHz FM transceiver, including parts lists, adjustment procedures, and schematic diagrams. It also includes troubleshooting information to assist users in diagnosing and resolving common issues with the device.

Brand: Kenwood-th
Model: 22A.AT .ES-SERVICE-MANUAL
Type: service manual
File size: 9.1 MB

Manual Overview

The Kenwood TH-22A/AT/E(S) service manual provides detailed instructions for troubleshooting, diagnostics, and adjustments for the 144MHz FM transceiver models. The manual includes a comprehensive troubleshooting flowchart to assist technicians in identifying and resolving common issues. Error codes and diagnostic procedures are outlined to facilitate quick identification of faults. Calibration and adjustment procedures are detailed, focusing on ensuring optimal performance of the transceiver. The manual provides board-level guidance with PC board views for the VCO and TX-RX units, which are essential for component-level repairs and replacements. Schematic diagrams and block diagrams are included to aid in understanding the circuitry and signal flow within the device. The parts list and exploded views offer detailed information on individual components, assisting in accurate repairs and replacements. This revised edition covers models with serial numbers 60900001 and higher, manufactured at the Singapore factory, and should be used in conjunction with the first edition for complete coverage.

Quick Issues Covered

Diagnose power-up failures with detailed adjustment procedures.
Error codes for VCO unit issues and solutions.
Schematic diagrams for circuit tracing and troubleshooting.

Overview

The Kenwood TH-22A/AT/E(S) is a 144MHz FM transceiver. The service manual, revised as of 1995, covers the TH-22A/AT/E models and includes updated specifications for the (S) type models produced in Singapore. The manual provides detailed information such as destination lists, parts lists, exploded views, packing details, adjustments, PC board views, schematic diagrams, and block diagrams. It also specifies the frequency range, supplied battery, charger options, and keypad configurations for different model types.