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Kenwood TM-211A - Service Manual

Kenwood TM-211A
48 pages
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Summary

CIRCUIT DESCRIPTION

RX SECTION

Description of the receiver circuit, including front end, mixers, and IF stages.

TX SECTION

Description of the transmitter circuit, including microphone amplification and modulation.

PLL SECTION

Description of the Phase Locked Loop circuit for frequency control.

UNLOCK CIRCUIT

Circuit responsible for detecting and indicating PLL loop unlock status.

PC BOARD VIEW

DISASSEMBLY

ADJUSTMENT

RX ADJUSTMENT

Procedure for adjusting receiver parameters like reset, voltage, PLL, and IF gain.

TX ADJUSTMENT

Procedure for adjusting transmitter parameters like drive, power, RF meter, and protection.

DEV

Adjustment procedure for frequency deviation.

TONE

Adjustment procedure for tone frequencies and deviation.

OPERATIONAL CHECKS

DCS FUNCTION OPERATIONAL CHECKS

Checks for DCS function operation, including digital cord settings and call sign.

SCHEMATIC DIAGRAM

SPECIFICATIONS

SERVICE BULLETIN

Countermeasure for lithium battery running down

Addresses lithium battery issues and miswiring countermeasure.

Summary

CIRCUIT DESCRIPTION

RX SECTION

Description of the receiver circuit, including front end, mixers, and IF stages.

TX SECTION

Description of the transmitter circuit, including microphone amplification and modulation.

PLL SECTION

Description of the Phase Locked Loop circuit for frequency control.

UNLOCK CIRCUIT

Circuit responsible for detecting and indicating PLL loop unlock status.

PC BOARD VIEW

DISASSEMBLY

ADJUSTMENT

RX ADJUSTMENT

Procedure for adjusting receiver parameters like reset, voltage, PLL, and IF gain.

TX ADJUSTMENT

Procedure for adjusting transmitter parameters like drive, power, RF meter, and protection.

DEV

Adjustment procedure for frequency deviation.

TONE

Adjustment procedure for tone frequencies and deviation.

OPERATIONAL CHECKS

DCS FUNCTION OPERATIONAL CHECKS

Checks for DCS function operation, including digital cord settings and call sign.

SCHEMATIC DIAGRAM

SPECIFICATIONS

SERVICE BULLETIN

Countermeasure for lithium battery running down

Addresses lithium battery issues and miswiring countermeasure.

Kenwood TM-211A Specifications

General IconGeneral
BrandKenwood
ModelTM-211A
CategoryTransceiver
LanguageEnglish

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