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JVC QL-5

JVC QL-5
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JVC
MODEL
QL'5
aie
DIRECT
DRIVE
TURNTABL
No.
2428
NOV.
1977
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JVC QL-5 Specifications

General IconGeneral
BrandJVC
ModelQL-5
CategoryTurntable
LanguageEnglish

Summary

Specifications

Service Precautions

Features

How to Operate (Names and Functions)

Block Diagrams

Servomotor Control System

Diagram of the motor speed control circuitry.

IC802 Integrated Circuits and Waveforms

Details on the integrated circuit and its signal patterns.

Troubleshooting

Platter does not rotate

Steps to fix issues where the platter fails to spin.

Platter rotates at a high speed

Steps to resolve problems of excessive platter rotation speed.

Rotation is not locked to the crystal oscillator frequency

Diagnosing and fixing speed lock errors.

Parts Replacement

Stylus Replacement

Instructions on how to change the turntable stylus.

Cartridge Replacement

Guidance on replacing the entire phono cartridge.

Adjustment Procedures

Power Supply Voltage Check

Procedure to verify and adjust power supply voltages.

Lock Adjustment

Steps to ensure the platter speed is accurately locked to the oscillator.

Brake Mechanism Adjustment

How to adjust the platter braking system for proper stopping.

Tonearm Height Adjustment

Calibrating the vertical position of the tonearm.

Arm Lifter Height Adjustment

Adjusting the height of the automatic arm lifter.

Overhang Adjustment

Setting the correct horizontal position of the cartridge in the headshell.

Headshell Angle Adjustment

Adjusting the vertical tracking angle (VTA) of the headshell.

Tracking Force Adjustment

Setting the correct downward pressure of the stylus on the record.

Anti-skating adjustment

Calibrating the force that counteracts the inward pull on the tonearm.

Arm-rest Height Adjustment

Adjusting the height of the tonearm rest.

Lubrication

Exploded Views and Parts List

Servomotor Control and Cabinet Assy

Exploded view of the motor and cabinet assembly.

Parts List with Specified Numbers for Designated Areas

Comprehensive list of parts with region-specific numbers.

Tonearm Assy

Exploded view of the tonearm assembly.

Printed Circuit Board Assy and Parts List

TXX-101 Servomotor Control P. C. Board Assy

Details of the servomotor control PCB.

TSC-80 F(GBS) Power Supply P. C. Board Assy

Details of the power supply PCB.

Schematic Diagram

Packing Materials and Part Numbers

Accessories List

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