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Kenwood KR-5030 Service Manual

Kenwood KR-5030
18 pages
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KENWOOD
H!I/F!
STEREO
COMPONENTS
SERVICE
MANUA
KR-5030
(KR-5330)
AM-FM
STEREO
RECEIVER
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Kenwood KR-5030 Specifications

General IconGeneral
Input Sensitivity2.5mV (MM), 150mV (line)
Tuning rangeFM, MW
Speaker load impedance4Ω to 16Ω
Frequency Response20Hz to 20kHz
Signal to Noise Ratio75dB (MM), 95dB (line)

Summary

External View of the Receiver

Front Panel Controls

Identifies meters, dial, knobs, and rings on the front.

Rear Panel Connections

Details rear jacks, AC outlet, terminal board, and switch.

Antenna and Power Input

Covers AM bar antenna and power cord.

Device Support Feet

Describes the feet for unit stability.

Internal Components and Dial Cord Setup

Internal Component Layout

Illustrates the placement of major internal sections.

Dial Cord Stringing Procedure

Step-by-step instructions for dial cord installation.

Disassembly for Repair Procedures

Pilot Lamp and Power Supply Disassembly

Steps for removing pilot lamp board and power supply.

Front and Rear Panel Removal

Instructions for removing the main panel and rear panel.

Tuner PC Board Removal

Guide for detaching the tuner PC board.

Component Disassembly Procedures

Power Transistor and Amplifier Board Removal

Steps for removing power transistor block and amp PC board.

Meter and Tuner Board Disassembly

Instructions for removing the meter and tuner PC board.

Dial Calibration Lamp Removal

Guide for removing the pilot lamp for dial calibrations.

System Block and Level Diagrams

FM and AM Signal Flow

Block diagram of FM/AM signal paths.

Audio Processing and Control Blocks

Diagrams of audio, protection, and control circuits.

Signal Level Characteristics

Graphs illustrating signal levels at various stages.

Circuit Operation Descriptions

ASO Operation Description

Explains the Active Service Optimization circuit.

DC Detection and Protection Circuit

Describes the DC detection and relay protection mechanism.

AM Muting Circuit Operation

Details the functionality of the AM muting circuit.

Signal Processing Circuit Details

FM Tuning and Detuning Circuits

Explains the FM tuning and detuning operational circuits.

FM Mono and Delay Circuitry

Describes FM mono operation and delay circuit functions.

Adjustment Procedures

FM Section Adjustments

Covers adjustments for FM reception stages.

AM Section Adjustments

Details adjustments for the AM tuner stages.

Audio Section Adjustments

Outlines bias and volume adjustments for audio.

Absolute Maximum Ratings

Lists maximum operating parameters for transistors and FETs.

Test Equipment Specifications

Signal Generator Specifications

Details for audio, RF, and multiplex signal generators.

Measurement Instrument Specifications

Specs for voltmeters, counters, and distortion meters.

Overall Specifications

Amplifier Section Performance

Power output, distortion, frequency response, and sensitivity.

FM Tuner Section Performance

Usable sensitivity, quieting, and signal-to-noise ratios.

AM Tuner and General Specifications

AM sensitivity, selectivity, dimensions, and weight.

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