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Denon DP-75 Service Manual

Denon DP-75
9 pages
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Hi
Fi
Component
SERVO-CONTROLLED
DIRECT
DRIVE
TURNTABLE
|
MODEL
DP-75
NIPPON
COLUMBIA
CO,LTD.
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Denon DP-75 Specifications

General IconGeneral
TypeDirect Drive
Signal to Noise Ratio75dB
Speeds33, 45 rpm
PlatterDie-cast aluminum
TonearmNot included (Tonearm base)
CartridgeNot included

Summary

Specifications

Phono Motor

Details motor drive system, speeds, and wow/flutter specifications.

General

Covers power supply, consumption, dimensions, and weight.

Safety Precautions

Theory of Operation

Servo Circuit Operation

Explains the servo circuit, speed detection, and phase comparison.

Service Hints

Magnetic Head Servicing

Instructions for servicing the magnetic head and platter alignment.

Regulator Voltage Check

How to check the 5V regulator voltage.

Speed Adjustment (KU-351)

Procedure for adjusting turntable speeds using an oscilloscope.

Exploded View

Wiring Diagram

Component Replacements and Safety Notes

Details component replacement guidelines and safety characteristics.

Measurement Guidelines Notes

Instructions on measuring voltages and waveforms.

Printed Circuit Board

KU-350E Servo Control Unit PCB Layout

Shows component placement for the KU-350E servo control board.

KU-351 Quartz Servo Unit PCB Layout

Shows component placement for the KU-351 quartz servo control board.

PS-147 Power Supply Unit PCB Layout

Shows component placement for the PS-147 power supply board.

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