Sony PSDJ-9000 Service manual

PS-DJ9000

SERVICE MANUAL

Ver 1.1 2001. 06

This set is the stereo turntable in PMPK-DJ9000.

SPECIFICATIONS

Motor and Platter

Drive system Direct drive quartz Motor 3 phase 8 pole Brushless DC motor Platter Aluminum die-cast

Speeds 33 and 45 rpm Wow and flutter Less than 0.15 % (WRMS) Signal to noise ratio More than 55 dB (DIN-B)

Diameter 332 mm (13.1 inches) Weight 750 g (1.85 lbs)

US Model

AEP Model

UK Model

E Model

Replacing the Cartridge

The life expectancy of the stylus tip is about 500 hours. To maintain optimum sound quality and prevent damage to your records, we recommend replacing the cartridge before the end of this time duration.

Obtain a replacement cartridge from your Sony dealer.

Tone Arm

Type Static balanced S-shaped tonearm with

Effective arm length 230 mm Overhang 15 mm Usable cartridge weight 4 g (min.) to 10 g (max.)

General

Power requirements U.S.A. and Mexico: 120 V AC, 60 Hz

Power consumption 15 W Dimensions Approx. 450 × 152 × 352 mm (17 ×

Mass 10 kg (22 lbs)

Supplied Accessories

Platter (2) Slip mat (2) Dust cover (with hinges) (2) Counterweight (2) Cartridge and headshell (2) 45 adaptor (2) Audio cord (with ground wire) (2) AC power cord (2)

Design and specifications are subject to change without

notice.

9-929-553-12

detachable headshell

European countries: 220 - 230 V AC, 50/60 Hz Other countries: 110 - 120 V/ 220 - 240 V AC, 50/60 Hz

5 × 13 in) (w/h/d)

Sony Corporation

Home Audio Company

Shinagawa Tec Service Manual Production Group

STEREO TURNTABLE SYSTEM

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microampers). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

TABLE OF CONTENTS

1. GENERAL ..................................................................... 3

2. DIAGRAMS

2-1. Circuit boards Location ...................................................... 5

2-2. Schematic Diagram – Main Section – ................................ 6

2-3. Schematic Diagram – Motor Section – .............................. 7

2-4. Printed Wiring Board – Main Section – ............................. 8

2-5. Printed Wiring Board – Power Section – ........................... 9

2-6. Printed Wiring Board – Motor Section –.......................... 10

3. EXPLODED VIEWS

3-1. Bottom Section ................................................................. 11

3-2. Cabinet Section................................................................. 12

4. ELECTRICAL PARTS LIST .................................... 13

0.15µF

1.5kΩ

Earth Ground

AC voltmeter (0.75V)

Fig. A. Using an AC voltmeter to check AC leakage.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY P ARTS WHOSE P AR T NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

SECTION 1

GENERAL

This section is extracted from instruction manual.

4 5

1 POWER ON/OFF switch

Spindle

Strobo lamp

3 4 START/STOP button

Slip mat

5 6 Platter 7 TARGET LIGHT and release button

The TARGET LIGHT allows you to see the position of the stylus in the dark. Push and depress the TARGET LIGHT to turn it off. Push the release button to raise the light again and turn it on.

8 Cartridge and headshell 9 Finger lift q; PITCH BEND + and – buttons qa Insulator

qd qf qg qh qj qk ql w; wa ws wd wf wg wh

Dust cover

Headshell holder

Counter weight

qf qg Hinge

45 adaptor

qh qj height adj (adjusting) lever

Use this lever to adjust the vertical position of the tonearm (wd).

qk LOCK lever (for height adjustment) ql ANTI-SKATING dial w; Cueing lever wa Arm stand ws Speed-adjustment hole

This hole is for use by qualified service

technicians only.

wd Tonearm wf PITCH ADJ. (adjusting) knob wg QUARTZ lock button wh SPEED (33/45) button wj Locking ring

Turn this ring so that the

“0“ lines up with the index

line.

Turn the counterweight

counterclockwise one full

rotation, and then a little

more until the index line

is aligned to 1.

A properly balanced tonearm has a tracking force

of zero. Therefore, rotate the tracking force scale

ring until “0” is aligned to the index line.

Restrain the counterweight with your other hand so

that it does not rotate along with the scale ring.

Getting Started

Before attempting to play any records, be sure to

complete the following steps to properly adjust the

tonearm balance, tracking force and anti-skating dial.

Adjusting the Turntable

Failure to complete these adjustments will result in

Index line

When you use the supplied cartridge, turn the

counterweight counterclockwise one full rotation,

and then continue turning it until the index line

comes to 1. Since one full rotation of the

counterweight yields a tracking force of 3 grams,

this adjustment results in a tracking force of

4 grams, which is the normal requirement for the

supplied cartridge.

You can set a tracking force of 3 to 7 grams.

Make sure the turntable is level.

Set ANTI-SKATING to “0.”

inferior sound quality and may cause permanent

damage to the stylus and record.

The tracking force scale ring is marked in 0.1-gram

units. One full rotation yields a tracking force of

When optionally available cartridge is used

tracking force scale ring.

3 grams.

Set ANTI-SKATING to the same value as the

The numbers on the ANTI-SKATING dial indicate

Set the cueing lever to the down position.

Turn up the protective cover to expose the stylus,

and move the tonearm to the space between the

arm stand and the platter.

Take care not to damage the stylus.

the number of grams in tracking force.

It will remain level with the platter when released.

It should not tilt in the direction of either the headshell

Balance the tonearm by turning the counterweight

either clockwise or counterclockwise.

or the counterweight.

When the tonearm is properly balanced

Return the tonearm to the arm stand.

Assembling the Turntable

of the tonearm and turn 3 or 4 times in the

Carefully place the platter onto the spindle.

Make sure the two pins on the bottom of the

platter are properly inserted into the two holes in

the motor, as indicated by the arrows in the

illustration above.

Place the slip mat on the platter.

direction of the arrow.

Slide the counterweight onto the shaft at the rear

Insert the headshell into the end of the tonearm.

Turn the locking ring in the direction of the arrow

until the headshell is secure.5Insert the hinges on the dust cover into the hinge

pockets on the rear of the cabinet.

SECTION 2

DIAGRAMS

NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM

Operations

stylus.

To play an another part of the record

1 Set the cueing lever to the up position to raise the

2 Move the tonearm to the desired position.

3 Set the cueing lever to the down position.

To play a 45 single

Place the supplied 45 adaptor onto the spindle.

Press SPEED to select 45 rpm.

The green indicator changes to red.

After you have finished using the adaptor, return it to

the adaptor tray.

Using the PITCH BEND + and – buttons

You can use the PITCH BEND + and – buttons to

synchronize the beat of the selection playing on one

turntable with the beat of another selection playing on

the other turntable. You can use these buttons even if

If the strobe dots are not stationary when the PITCH

speed of the selection playing on one of the

turntables with the speed of the selection on the

other turntable.

synchronize the beat of both selections. Pressing

and holding down the + or – button causes the

selection to play 10% faster or slower than the

the QUARTZ lock button is turned on or off.

1 Use the PITCH ADJ. knob to synchronize the

2 Press the PITCH BEND + and – buttons to

ADJ. knob is set to the center position

normal playing speed.

Adjust the platter speed by sliding the PITCH ADJ.

knob toward + or – until the strobe dots become

stationary.

If you have an extra headshell, keep it in the

headshell holder.

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• b : Pattern from the side which enables seeing.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

W or less unless otherwise

• C : panel designation.

Note: The components identified by mark 0 or dotted line

with mark 0 are critical for safety. Replace only with part number specified.

• U : B+ Line.

• V : B– Line.

• Voltages are dc with respect to ground under no-signal conditions. no mark : Power on

• V oltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.

OperationsOperations

Remove the protective cover from the cartridge

and release the arm stopper.

Set the cueing lever in the up position.

Move the tonearm to the desired point on the

record.7Set the cueing lever to the down position.

The tonearm will descend slowly to the record and

play will begin.

If you want to change the pitch, press the

QUARTZ lock button (the QUARTZ indicator will

turn off). Then adjust the pitch by moving the

PITCH ADJ. knob.

The distance from the center position to the

farthest point on the scale represents a change of

10% in the pitch. You can also use the

PITCH BEND + and – buttons to change the pitch

3,8,9

8,9

6,7

The PITCH ADJ. knob does not function while the

QUARTZ lock is on (i.e., while the QUARTZ indicator is

(see “Using the PITCH BEND + and – buttons” on

page 8).9If you wish, you can return to normal speed

(33 1/3 or 45 rpm) while the PITCH ADJ. knob is

off center by pressing the QUARTZ lock button

(the QUARTZ indicator will turn on).

Press the QUARTZ lock button again to go back to

the previous pitch setting (the QUARTZ indicator

will turn off).

Note

on).

To adjust the volume, use the respective channel

fader on the mixer, or the volume control on the

stereo component system or amplifier.

the tonearm to the arm stand.

Attach the protective cover onto the cartridge to

prevent damage to the stylus.

The platter stops rotating.

Secure the tonearm with the arm stopper.

To stop play

1 Set the cueing lever in the up position and return

2 Press Bx START/STOP.

3 Turn POWER to OFF.

(Continued)

up position to raise the stylus.

To pause play

Press Bx START/STOP or set the cueing lever in the

334545

2-1. Circuit Boards Location

RELAY board

LED board

PAUSE/START board

LED SW board

MOTOR board

POWER board

TONE ARM boar

MAIN board

• WAVEFORMS – MAIN SECTION –

1 IC7 0

5Vp-p

180msec

2 IC10 2 (XOUT)

3.5Vp-p

250msec

Playing a Record

Place a record on the platter.

Before playing a record, be sure the PHONO/LINE

switch on the mixer is set to PHONO.

Place only one record on the platter at a time. If two or

more records are stacked on the platter, the stylus will

not make proper contact with the grooves and the

quality of reproduction will be impaired.

Note

Turn the POWER switch to ON.

The strobo lamp, the QUARTZ lock indicator, and

SPEED indicator light up.

Turn the POWER switch on the mixer and

When the turntable is turned on, the platter speed

amplifier to ON also.

Set PITCH ADJ. knob to the center position.

50 Hz

is automatically set to 33 rpm. Verify that the

green indicator lights up.

The platter starts rotating.

If you select 33 rpm when the turntable is

connected to a 50 Hz power source, the uppermost

Press Bx START/STOP.

row of the strobe dots should appear to stand still.

60 Hz

+ 11 hidden pages