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Kenwood KR-6600 Service Manual

Kenwood KR-6600
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KENWOOD
H1/Fl
STEREO
COMPONENTS
SERVICE
MANUAL
KR-6600(6060)
KR-7600(7060)
AM-FM
STEREO
RECEIVER
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Kenwood KR-6600 Specifications

General IconGeneral
Power Output60 watts per channel into 8Ω (stereo)
Speaker Load Impedance4Ω to 16Ω
Tuning RangeFM, MW
Frequency Response20Hz to 20kHz
Input Sensitivity2.5mV (MM), 150mV (line)
Signal to Noise Ratio70dB (MM), 90dB (line)
Frequency Response Extended10Hz to 50kHz

Summary

External View

Internal View and Disassembly

Preamp Repairing

Instructions for disassembling the preamp section.

Power Amp Repairing

Steps to remove the power amp unit.

System Overview

Dial Cord Stringing

Procedure for stringing the dial cord.

Block Diagram

Overall system block diagram.

Circuit Descriptions

FM RF Circuit

Description of the FM Radio Frequency circuit.

IF Circuit

Description of the Intermediate Frequency circuit.

FM Muting Circuit

Explanation of the FM muting detection procedure.

FM-MPX Circuit

Details on the FM Multiplex circuit.

AM Tuner Circuit

Description of the AM tuner circuit.

Protection Circuits

Explanation of protection circuits.

Troubleshooting

Adjustments

FM Section Adjustments

Test procedures for the FM tuner section.

AM Section Adjustments

Test procedures for the AM tuner section.

Audio Section Adjustments

Test procedures for the audio circuits.

KR-7600 Destination Parts List

KR-6600 Destination Parts List

Total Parts List

Tuner Assembly Parts

Parts list for the tuner assembly.

Power Supply (A) Parts

Parts list for Power Supply Unit (A).

Tuner and Power Supply Parts

Tuner Unit Parts

Parts list for the tuner unit.

Power Supply (B) Parts

Parts list for Power Supply Unit (B).

Power Supply (C) Parts

Parts list for Power Supply Unit (C).

Amplifier Parts Lists

Power Amplifier Parts

Parts list for the power amplifier unit.

Preamp Parts

Parts list for the preamp unit.

Mic Amp Parts

Parts list for the microphone amplifier.

Control Amp Parts

Parts list for the control amplifier.

Sub-Muting Parts List

Sub-Muting Components

Component breakdown for the sub-muting circuit.

PC Board Layouts

Sub-Muting PC Board

PCB layout for the sub-muting circuit.

Power Supply (A) PC Board

PCB layout for Power Supply Unit (A).

Power Supply (B) PC Board

PCB layout for Power Supply Unit (B).

PC Board Layouts - Power Supply and Preamp

Power Supply (C) PC Board

PCB layout for Power Supply Unit (C).

Preamp PC Board

PCB layout for the preamp unit.

PC Board Layouts - Tuner

Tuner PC Board

PCB layout for the tuner unit.

PC Board Layouts - Power Amp

Power Amp PC Board

PCB layout for the power amplifier unit.

PC Board Layouts - Control and Mic Amp

Control Amp PC Board

PCB layout for the control amplifier.

Mic Amp PC Board

PCB layout for the microphone amplifier.

Specifications

FM Tuner Specifications

Technical specs for the FM tuner section.

AM Tuner Specifications

Technical specs for the AM tuner section.

Pre-Amplifier Section Specifications

Specs for input sensitivity, frequency response, etc.

Power Amplifier Specifications

Specs for output power and distortion.

General Specifications

Overall power, dimensions, and weight.

Schematic Diagrams

Tuner, Power Amp, and Muting Schematics

Schematic for tuner, power amp, and sub-muting units.

KR-7600 Schematic Diagram

KR-6600 Schematic Diagram

KR-6600 Power Amp and Destination Schematics

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