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Pioneer PL-400X User Manual

Pioneer PL-400X
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This seruice
manual describes
the mechanical operations
and
adjustments,
and the D.D.
motor employed
in the
following
models.
STEREO
TURNTABLE
PLI
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FL-ElcIcIX
PLI?55
PLISOO
PL-3clcIX
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1-chome. rvesuno-ku, Tokyo 153. Jap6n
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Jereey O7O7A, U.S
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Elelgrum
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AIJATFaALIA
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LTO.
178-184
E]ounda.y Road, Elnaesde, VcEonra
3195,
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<ART-467-0>
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Printed
in
Japan
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Pioneer PL-400X Specifications

General IconGeneral
Drive SystemBelt Drive
Speeds33 1/3, 45 RPM
Overhang15 mm
MotorDC Motor
PlatterAluminum
TonearmStatic Balanced
Output level2.5 mV (1 kHz, 5 cm/sec)
Frequency response20 - 20, 000 Hz
Wow and Flutter0.025% WRMS
Signal to Noise Ratio78dB

Summary

PL-200 Panel Facilities

PL-200 Speed Selector Button Operation

Controls platter speed between 45 and 33-1/3 RPM.

PL-200 Speed Adjustment Knob Function

Allows fine-tuning of platter speed.

PL-200 Cut Button Functionality

Returns tonearm and cuts power to the turntable.

PL-200 Arm Elevation Lever Operation

Lifts or lowers the tonearm for playback.

PL-255 Panel Facilities

PL-255 Start/Cut Button Function

Starts playback, moves tonearm, or cuts power.

PL-255 Repeat Button Functionality

Repeats the current record play.

PL-255 Record Size Selector Use

Selects record size for automatic play.

PL-255 Strobe Light and Speed Checking

Illuminates stroboscope markings for speed checking.

PL-255 Fine Speed Adjustment Knob

Allows fine-tuning of platter speed.

PL-255 Speed Selector Button Operation

Selects platter speed between 45 and 33-1/3 RPM.

PL-255 Tonearm Functionality and Power Control

Applies tracking force and controls power.

PL-255 Arm Elevation Lever Control

Lifts or lowers the tonearm for playback.

PL-255 Anti-Skate Knob Adjustment

Cancels skating force during playback.

PL-255 Arm Rest and Clamper Function

Supports and secures the tonearm when not in use.

PL-255 Platter and Rubber Mat Features

Stabilizes records and absorbs vibration.

PL-255 Dust Cover Purpose

Protects records and turntable from dust.

PL-400 Panel Facilities

PL-400 Start/Cut Button Function

Starts playback, moves tonearm, or cuts power.

PL-400 Repeat Button Functionality

Repeats the current record play.

PL-400 Record Size Selector Use

Selects record size for automatic play.

PL-400 Strobe Light Indicator

Illuminates stroboscope markings for speed checking.

PL-400 Speed Selector Button Operation

Selects platter speed between 45 and 33-1/3 RPM.

PL-400 Tonearm Functionality

Applies tracking force and controls power.

PL-400 Arm Elevation Lever Operation

Lifts or lowers the tonearm for playback.

PL-400 Anti-Skate Knob Adjustment

Cancels skating force during playback.

PL-400 Arm Rest and Clamper Function

Supports and secures the tonearm when not in use.

PL-400 Platter and Rubber Mat Features

Stabilizes records and absorbs vibration.

PL-400 Dust Cover Purpose

Protects records and turntable from dust.

PL-300 Panel Facilities

PL-300 Cut Button Functionality

Returns tonearm and cuts power.

PL-300 Speed Selector Button

Selects platter speed between 45 and 33-1/3 RPM.

PL-300 Arm Elevation Lever

Lifts or lowers the tonearm for playback.

Disassembly Procedures

Panel and Base Plate Removal

Steps for removing the unit's panel and base plate.

Panel and Base Plate Assembly

PL-200/PL-300 Assembly Steps

Procedures for assembling the panel and base plate for PL-200/PL-300 models.

PL-255/PL-400 Assembly Steps

Procedures for assembling the panel and base plate for PL-255/PL-400 models.

Circuit Descriptions

Block Diagram for PL-300/PL-400

Schematic illustrating circuit interconnections for PL-300 and PL-400 models.

Motor Operation and Principles

Details on motor construction, rotation, and speed detection.

PD1003 IC Oscillator Stage

Explanation of the PD1003 IC's oscillator function.

PA2004 IC Comparator Control

Explanation of the PA2004 IC's comparator control function.

PA2005 IC Drive Control

Details on PA2005 IC drive control, pulse, and prevention circuits.

Block Diagram for PL-200/PL-255

Schematic illustrating circuit interconnections for PL-200 and PL-255 models.

Mechanism Descriptions

PL-200 Mechanism Operation

Explanation of the PL-200's operating mechanism, including start of play.

PL-400 Mechanical Operation

Explanation of the PL-400's lead-in and operating mechanism.

Repeat Playback Operation

Details on how to perform repeated playback.

Interruption of Record Play

Steps to interrupt and resume record playback.

Manual Start and Stop Procedures

Procedures for manually starting and stopping playback.

Adjustments

Stylus Descent Position Adjustment

Adjusting the stylus landing spot for automatic play.

Auto Return Adjustment Procedure

Adjusting the auto-return mechanism's timing.

DD Motor Adjustment for PL-300/PL-400

Adjusting the direct drive motor for specific models.

DD Motor Adjustment for PL-200/PL-255

Adjusting the direct drive motor for specific models.

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