Pioneer PL 400X Service Manual

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STEREO TURNTABLE

L-4OO
L-4OOX .w

For descriptions and adjustment methods of the D.D.motor and the mechanism employed
in this model, refer to the Supplementary Service Manual (ART-467) for the PL-200, PL-255,

PL-300, and PL-4OO models.

CONTENTS

1. SPECIFICATIONS ....................... 2
2. EXPLODED VIEWS
2.1 Main Panel ......................... 3
2.2 Sub Panel .......................... 6
2.3 0.0. Motor ........................ 7
3. SCHEMATIC DIAGRAM AND PARTS LIST . . . .8
4. PC. BOARD CONNECTION DIAGRAM ...... 11
5. PACKING ............................ 13

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome. MeguPo-ku. Tokyo 153. Japan
LLB. PIONEER ELEWICB PMATION 85 Oxford Drlve. Moonachue. New Jersey 07074. LISA:
PIMEER ELECTROINIIC (ma) N.V. Lu-magen-Haven S. 2033 Antwerp, BEIglum

PIMEER ELEMNICB AIJBTRALIA PTY. LTD. 178-184 Boundary Road. Braes-de. VICCOPIB 33195. Austral-a

JULY 1979 Printed in Japan

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1. SPECIFICATIONS

Motor and Turntable

Drive System ................................. Direct-drive
Motor ............................. Quartz PLL Hall motor
Turntable Platter ......... 310mm diam. aluminum alloy die-cast
Moment of Inertia ........... 180kg-cm2 (including platter mat)
Speeds ................................. 33-1/3 and 45rpm
Wow and Flutter .................. Less than 0.025% (WRMS)
Signal-to-Noise Ratio ................ More than 75dB (DIN-B)

(with Pioneer cartridge model PC-135)
Rotational Characteristics

Build-up Time ............. Within 120° rotation at 33-1/3rpm
Speed Deviation .......................... Less than 0.002%
Speed Drift ............... Less than 0.00008%/h at 33-1/3rpm
Less than 0.00003%/degree temp. change at 33-1/3rpm
Tonearm
Type .................. Static-balance type, S-shaped pipe arm
Effective Arm Length .............................. 221mm
Overhang ....................................... 15.5mm
Usable Cartridge Weight ................ 49 (min.) to 99 (max.)
Subfu notions

Full auto-mechanism, Anti-skating force control, Stylus pressure
direct-readout counterweight, Cueing device, Strobe light, Free stop
hinges

Semiconductors

le ................................................ 3

Transistors ........................................... 3
Diodes .............................................. 6
Hall Elements ....................................... 3
Miscellaneous
Power Requirements ................ AC120V, 50, 60Hz
Power Consumption .......................... 8W
Dimensions ............... 420(W) x 96(H) x 365(Dlmm
16-1/2(W) x 3-13/16(H) x14-3/8(D)in.
Weight .......................... 6.5kg/14 lb 5 02.
Accessories
EP Adapter .......................................... 1

Cartridge mou nting parts

Cartridge mounting screws .................... 6
Cartridge mounting nuts ...................... 2
Cartridge mounting washers .................... 2
Operating Instructions ......................... 1
PC-135 Specifications (PL-400x KU)
Type ........................ Induced magnet type
Stylus .................... 0.5 mil diamond (PN-135)
Output Voltage ......... 3mV (1 kHz, 50mm/s Peak velocity,
. LAT)
Tracking Force ....... . ......... 1.59 to 2.39 (proper 29)
Frequency Response .................. 10 to 25,000Hz

NOTE:

Specifications and design subject to possible modification without
notice, due to improvements.