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JVC JL-F50

JVC JL-F50
24 pages
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JL-F50
PR
eee
Pen
ae
all
hs
Dee
IRV
e
TURNTABLE
No.
2411
February
1977
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JVC JL-F50 Specifications

General IconGeneral
Effective length220mm
Overhang15mm
Tracking force range0-3g
Speed33-1/3, 45 rpm
CartridgeMM type
Platter300mm aluminum die-cast
Tonearm typeStatic balanced
Cartridge weight range4-8g

Summary

Specifications

Block Diagram

Platter Revolution Control

Explains the process of starting platter revolution based on speed select and transistors.

Speed Adjustment Mechanism

Describes how platter speed is adjusted by varying collector current of a transistor.

Operation

4-(2) Start Mechanism

Details the sequence of actions for starting the turntable operation.

4-(3) Lead-in Mechanism

Explains how the tonearm is moved to the lead-in groove of the record.

Adjustment Procedures

5-(1) Lead-in Adjustment

Procedure for adjusting the tonearm lead-in position for accurate stylus placement.

5-(2) Lead-out Adjustment

Procedure for adjusting the lead-out mechanism to initiate the change cycle correctly.

Troubleshooting

8-(1) Table of Troubleshooting

A table listing common symptoms, their causes, and recommended remedies for troubleshooting.

8-(2) Chart 1. Platter does not rotate

Flowchart to diagnose and resolve issues with platter rotation not starting.

8-(3) Chart 2. Platter rotates at high speed

Flowchart to diagnose and resolve issues with high speed platter rotation.

8-(4) Chart 3. Erratic platter rotation

Flowchart to diagnose and resolve issues with erratic platter rotation.

8-(5) Chart 4. Weak starting and long rise time

Flowchart to diagnose and resolve issues with weak starting torque and long rise time.

Printed Circuit Board (PCB) Information

Schematic Diagram

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