Yamaha pf 800

Page 1

STEREO TURNTABLE

PF-1000/ PF-8OO

SERVICE MANUAL

OPP-1000

2::-

- TO SERVICE PERSONNEL

1.

Critical Components Information.

Components having special characteristics are marked A
and must be replaced with parts having specifications equal
to those originally installed.

Leakage Current Measurement (For 120V Model Only).
When service has been completed, it is imperative that you
verify that all exposed conductive surfaces are properly
insulated from supply circuits.

Meter impedance should be equivalent to 1500 ohm shunted
by 0.15uF.

Leakage current must not exceed 0.5mA.

Be sure to test forleakage with the AC plug in both polarities.

I CONTENTS

SPECIFICATIONS ......................
INTERNAL VIEW ......................
DISASSEMBLY PROCEDURES .............
ADJUSTMENT OF THE FLOATING PANEL . . . .

o PF-800

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1
1
2
2

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EQUIPMENT AC LEAKAGE TESTER
UNDER TEST OR EQUIVALENT
@ :3- «-;
WALL l:! -_L-
OUTLET INSULATING TABLE "
WIRING DIAGRAM ..................... 3
SCHEMATIC DIAGRAM .................. 4/5
PARTS LIST ........................ 6~14

004566

m YAMAHA

NIPPON GAKKI CO. LTD. HAMAMATSU. JAPAN
2.6KIO2 I: G Printed in Japan 84.6

Page 2

PF-lOOO/PF-BOO

I SPECIFICATIONS
l TURNTABLE MOTOR SECTION
Drive System ........................ Belt drive
Motor ..................... FG Servo DC motor
Turntable Platters
inner ............. PF-BOO Zinc. 0.86 kg (1.9 lbs.)
PF-1000 Gun metal, 1.23 kg (2.7 lbs.)
Outer ............. Aluminum, 1.63 kg (3.6 lbs.)
Turntable Moment of inertia ........ PF-800 330 kg / cm2

PF-1000 340 kg / cm2
(including rubber mat 0.25 kg)

Speeds ...... 33-1/3 81 45 rpm Pitch control: more than 16%
Signal-to-Noise Ratio ................ 80 dB (DIN-B)
Wow and Flutter ............... PF-800 0.028% wrms

PF-1000 0.023% wrms
I TONEARM SECTION

Arm ........ Twin-pipe straight arm, dynamically balanced
Effective length .................. 222 mm (8-3/4")
Overhang ....................... 16 mm (5/8)
Horizontal Tracking Error ................ --1 to + 3°
AntioSkating ............. Spring, direct-readout scale
Offset Angle ........................... 23°
Permissible Cartridge Weight ............... 2 -- 11 9
Initial Shock Sensitivity . . . . Vertical 10 mg, Horizontal 10 mg
Sensitivity . . . . Vertical max. 100 mg, Horizontal max. 100 mg

Horizontal max. 100 mg
Heedshell . Plug-in type lightweight shell containing 20 % carbon
Automatic Arm Lifter . . . . Sensor infrared light-reflector type
position
Cueing ..................... solenoid, oil damper
Auto Stop . . . Motor switcholf when arm automatically lifted

Headshell...2
(R only ..... 1)

45 adaptor...l

I CARTRIDGE (General model only)

Type ........................ MC-705 MC Type
Output ............... 0.3 mV (at 1 kHz, 3.54 cm/sec)
Tracking Force ..................... 1.7 g i 0.5 9
Weight .............................. 4.3 g
I GENERAL

Power Supplies ................... 120V AC 60 Hz

(U.S. 8i Canadian Models)

220V AC 50 Hz

(European Model)

240V AC 50 Hz

(British 8i Australian Models)

110 ~ 120V, 220 ~ 240V AC 50/60 Hz
(General Model)

Power Consumption ....................... 7W
Cabinet ...... 25 mm particle board, PF~1000 Wolnut finish
PF-800 Vinyl finish

Dust Cover ........... Formed acrylic, 1.13 kg (2.5 lbs.)
Hinges ........................ Detachable type
Suspension ..... 3-point support; fo = 4 Hz, coil spring plus

urethane; with height adjuster

Dimensions (W x H X D) .......... 473 x 154 x 376 mm
(18-5/8 x 6 x14-7/8)"

Weight ................... PF-800 13 kg (28.6 lbs.)

PF-IOOO 13.7 kg (30.1 lbs.)
Specifications subject to change without notice.

G: European model
8: British model
R: General model

U: U.S.A. model
C: Canadian model
A: Australian model

ACCESSORIES N
_,. /4? WE
26:11:.
Belt...1 Allen wrench...1

it]? Q

k Main weight...1 Overhang gauge...1

Dust cover hinges

uiT-w-ImIImIIIIII II

Headshell with cartridge

Replacement belt...1 (R mOdel only) J

I INTERNAL VIEW
1 2 9

0 POWER TRANSFORMER
U.S.A 8i Canadian models : GA67900
General model : GA67910
Australian 8i British models : GA67920
European model : GA67990

O CONTROL CIRCUIT BOARD (11

0 PU CORD ASSEMBLY

o MOTOR UNIT

9 SWITCH CIRCUIT BOARD [Control (2)]