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Kenwood KA-801 Service Manual

Kenwood KA-801
26 pages
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Kenwood KA-801 Specifications

General IconGeneral
TypeIntegrated Amplifier
Total Harmonic Distortion (THD)0.03%
Input Sensitivity2.5 mV (MM), 150 mV (line)
Dimensions430 x 150 x 360 mm
Speaker load impedance4Ω to 16Ω
Channel Separation60dB (1kHz)
Power Output80 watts per channel into 8Ω (20Hz-20kHz, THD 0.07%)

Summary

External View and Component Identification

Amplifier Block and Level Diagrams

Block Diagram Overview

Visual representation of signal flow and component interaction.

Disassembly Procedures - Part 1

Disassembly Procedures - Part 2

Exploded View Parts List

Comprehensive Parts List (1)

Circuit Description - Tone Controls (Part 1)

Circuit Description - Tone Controls (Part 2)

Circuit Description - Bass Control Variations

Circuit Description - Protection and Detection Circuits

Protection Circuit (IC HA12002)

Explanation of the protection circuit using IC HA12002.

Circuit Description - Logic and Power Control

Adjustment Procedures - Preamplifier and Power Meter

Preamplifier Offset Voltage Adjustment

Procedure for adjusting preamp offset voltage.

Power Meter Level Adjustment

Steps to adjust the power meter level.

Power Amplifier Offset Voltage Adjustment

Procedure for adjusting power amp offset voltage.

Bias Current Adjustment

Steps for adjusting bias current.

Preamplifier and Power Output Adjustments (French)

Preamplifier Offset Voltage Setting

Adjustment of offset voltage in the preamplifier section.

Power Output Offset Voltage Adjustment

Adjustment of offset voltage for the output stage.

Bias Current Adjustment

Adjustment of bias current.

Amplifier Adjustment Procedures (German)

Preamplifier Offset Voltage Calibration

Adjustment of offset voltage for the preamplifier.

Power Amplifier Offset Voltage Calibration

Adjustment of offset voltage for the power amplifier.

Main Amplifier Schematic Diagram

Amplifier Specifications

Power Output Specifications

Technical specifications for the amplifier's power output.

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