Pioneer pl x 7 service manual

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MPIONEER

CIRCUIT DESCRIPTIONS
REPAIR & ADJUSTMENTS

STEREO TURNTABLE

L-X7

MODEL PL-X7 COMES IN FOUR VERSIONS DISTINGUISHED AS FOLLOWS:

Type Voltage - Remarks 1]
HE 220V and 240V (Switchable) Europe model

HB 220V and 240V (SwitchwleI 3K model 1.

S 110V, 120V, 220V, 240V (Switchable) General export model

8/6 1 10V, 120V, 220V. 240V (Switchable) U. 8. military model

O This is the service manual for model PL-X7/HE, HB and S. For servicing of 8/6 type, please refer to the
additional service manual.

0 The operational description for the PL-X7 is basically the same as for the PL-X50 so refer to the PL-X50
service manual (ARTc698).

0 Ce manuel d'instruction 58 refine au mode de réglage, en francais.

o Este manual de servicio trata del método de ajuste escr'rto en espafiol.

CONTENTS
1. SPECIFICATIONS ..................... 2 9. ELECTRICAL PARTS LIST .............. 29
2. FRONT PANEL FACILITIES ............. 3 10. P. C. BOARD CONNECTION DIAGRAM ...... 31
3. BLOCK DIAGRAM .................... 4 I1. SCHEMATIC DIAGRAM ................ 33
4. CIRCUIT DESCRIPTIONS ............... 5 12. TROUBLESHOOTING .................. 35
5. MAJOR COMPONENT 13. ADJUSTMENTS ...................... 42
ASSEMBLY/DISASSEMBLY .............. 16 REGLAGE .......................... 44
6. PARTS LOCATION .................... 21 AJUSTE ............................ 46
7. EXPLODED VlEW AND PARTS LIST ...... 23 14. FOR 3 TYPE ........................ 48

8. PACKING ........................... 28

PIONEER ELECTRONIC CORPORATION 4-1.Megur~o 1-Chorne. Meguro-ku. Tokyo 158. Japan

PIONEER ELECTRONIC. [LI-A] INC. 1925 E. Dommguez St. Long Beach, California 90810 USA.
PIONEER ELECTRONIC [EUROPE] N.V. Keecberglam I. 2740 Beverun. Belgium
PIONEER ELECTRONICS AUBTRALIA PTY. LTD. 178-184 Boundary Road. Breeeide. Victoria 3195. Australia

FZ © DEC. 1982 Printed in Japan

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1 .SPECIFICATIONS

Motor and Turntable

Drive System ....................................... Belt-drive
Motor ................................................ DC motor
Turntable Platter ............... 180 mm diam. aluminum
alloy die-cast
Speeds ................................... 33-1/3 and 45 rpm
Wow and Flutter ........... Less than 0.045% (WRMS)
$006596 WTD Peak (DIN)
Signal-to-Noise Ratio ......... More than 70 dB (DIN-B)
(with Pioneer cartridge model PC-31 MC)
Tonearm

Type .......................... integrated straight pipe arm

PC-31MC Specifications
Type ........................................ Moving coil type
Stylus ........................ 0.5 mil diamond (PN-31 MC)
Output Voltage ....................................... 2.5 mV
(ikHz, 5cm/s LAT, Peak)
Tracking Force ................. 1.7 g to 2.3 g (proper 2 9)
Frequency Reaponse ...................... 10 to 32,000 Hz
Recommended Load .................................. 50 k9

Subfunctions

Full auto functions based on a motor specially design-
ed for the tonearm

Auto disc size selector (17 cm, 30 cm)

Arm elevation mechanism

Built-in anti-skating

Miscellaneous
Power Requirements ....... AC 220/240V (switchable),
50, 60 Hz
Power Consumption ..................................... 9 W
Dimensions ............... 320 (W) x98 (H) x 210(0) mm
12-5/8 (W) x4-1 /4 (H) x8-l [4 (D) in.
Weight ...................................... 5.5 (cg/12 lb202
Accessories
EP Adapter .................................................... 1
Operating Instructions ...................................... 1
NOTE:

Specifications and design subject to possible modification
witiwut notice, due to improvements.