Sony PS-2700 Manuale utente

GENERAL

Power

Requirement:

Power

Consumption:

Dimensions:

SPECIFICATIONS

110,

120,

220

240

ac,

50/60

(E,

AEP

mode!)

120V

ac,

GOHz

(US

and

Canadian

model)

12W

(US,

Canadian

model)

18W

(AEP

model)

455

(w)

160

(h)

370

(d)

(w)

34h)

14%

(d)

inches

Weight:

Approx.

8kg,

10o0z

(net)

Approx.

10.5kg,

(with

shipping

carton)

TURNTABLE

Platter:

30cm

(12

inches),

diecasting

aluminum

alloy

Drive

System:

belt

drive

Speeds:

3314,

rpm

Wow

and

Flutter:

S/N

Ratio:

+0.08%

(DIN

45507,

weighted)

Less

than

0.06%

(NAB,

weighted

rms)

Greater

than

63dB

(DIN

45539,

B-curve

weighted)

SAFETY-RELATED

COMPONENT

WARNING

COMPONENTS

IDENTIFIED

SHADING

THE

SCHEMATIC

DIAGRAMS

AND

THE

PARTS

LIST

ARE

CRITICAL

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

SHOWN

THIS

MANUAL

SUPPLEMENTS

PUBLISHED

SONY.

TONEARM

Type:

Statically

balanced,

universal

Arm

Length:

300mm

(11

inches),

overall

216.5mm

inches),

pivot-to-stylus

Overhang:

16.5mm

(*%,

inches)

Tracking

Error:

+3°,

_1°

Tracking-force

Adjustment

Range:

O-—3g

Shell

Weight:

7.59

Cartridge

Weight

Range:

4-—

10g

CARTRIDGE

(VL-32G)

(Canadian,

AEP

mode!)

Moving

magnet

type

4mV

1kHz,

5cm/s

50k

ohms

Tracking

Force:

Stylus:

Conical

0.5

mit

diamond

(ND-134G)

Weight:

5.59

SON

SERVICE

MANUAL

Type:

Output

Voltage:

Load

Impedance:

PS-2700

MODEL

IDENTIFICATION

—

Specification

Label

—

US,

Canadian

model

STEREO

TURNTABLE

SYSTEM

MODEL

NO.

PS-2700

120V

60Hz

12W

SERIAL

NO.

MADE

model

STEREO

TURNTABLE

SYSTEM

MODEL

NO.

PS-2700

110,

120,

220,

240V

50/60Hz

10W

SERIAL

NO.

MADE

AEP

model

STEREO

TURNTABLE

SYSTEM

MODEL

NO.

PS-2700

110, 120,

220,

240V

50/60Hz

18W

SERIAL

NO.

MADE

JAPAN

PS-2700

SECTION

DISASSEMBLY

WARNING

Unplug

the

power

cord

before

starting

any

dis-

assembly

replacement

procedures.

2-1.

TOP

COVER

REMOVAL

2-3.

BOTTOM

PLATE

REMOVAL

Open

the

top

cover,

and

then

pull

shown

Remove

the

turrtable

platter.

Don’t

remove

Fig,

2-1.

the

top

cover.

Put

and

lock

the

tonearm

the

tonearm

rest.

Place

the

set

up-side-down.

Remove

four

foots

and

ten

tapping-screws

shown

Fig,

2-3.

tapping-screw

weak

part

“||

Take

care

handle.

bottom

plate

Fig.

2-1

2-2,

TURNTABLE

PLATTER

REMOVAL

Remove

the

turntable

platter

mat

from

the

turn-

table

platter.

Turn

the

turntable

platter

that

the

either

hole

Fig.

---

the

turntable

platter

the

motor

pulley.

Remove

the

drive

belt

and

then

lift

the

turntable

2-4.

CASE

REMOVAL

straight

up.

Remove

the

bottom

plate

described

Pro-

top

cover

cedure

2-3,

Remove

four

screws

and

pull

the

cord

holder

off

shown

Fig.

2-4.

‘

PSW

turntable

platter

mat

turntable

platter

hole

ator

pulle

pulley

Fig.

2-2

holder

Note:

‘

The

motor

mechanism

locked

two

red-painted

Fig.

2-4

transit

screws.

When

operating

the

player,

remove

two

screws

and

keep

the

place

marked

Fig.

2-2.

PS-2700

2-5,

SHELL

HEAD

REMOVAL

Note:

The

four

lead

wires

for

shell

head

difficults

pass

through

the

tonearm

pipe.

Thus,

use

the

former

lead

wires

when

replacing

the

shell

head,

Unsolder

the

output

leads

from

the

tonearm

the

terminal

board

shown

Fig.

2-5.

Remove

the

bottom

plate

and

the

turntable

platter.

Remove

two

shell-head-adjust-screws

shown

Fig.

2-6.

Pull

out

the

shell

head

connector

about

3cm

inches)

slowly

while

pushing

the

four

leads

into

the

tonearm

pipe

from

the

tonearm

base

side,

;

5.-Unsolder

the

four

leads

and

then

replace

the

shell

head.

Temporarily

secure

with

two

screws

shown

Fig.

2-6.

Install

the

cartridge

the

tonearm.

Fix

two

shell-head-adjust-screws

after

making

sure

that

the

position

cartridge

shown

Fig.

2-7,

grounding

wire

lead

RED

GRN

BLU

WHT

terminal

board

tonearm

Fig.

2-5

shell

head

connector

four-pin

connector

tip

screwdriver

hole

washer

17,.5mm

dia,

Fig,

2-6

RED

WHT

cartridge

GRN

surtace

record

screw

right

angle

Fig,

2-7

2-6.

TONEARM

REMOVAL

Remove

the

top

cover,

the

shell

head,

the

counter-

weight,

the

turntable

platter,

the

bottom

plate

and

the

case.

Unsolder

the

leads

from

the

tonearm

the

terminal.

Pull

out

the

grounding

wire

shown

Fig,

2-8.

Loosen

two

hexagonal

screws,

then

remove

the

brake

drum

shown

Fig.

2-8.

Remove

three:

hexagonal

screws,

then

draw

out

the

tonearm

base

while

turning

clockwise

about

2mm

the

circumference

shown

Fig.

2-9,

Remove

the

tonearm

carefully,

brake

drum

hexagonal

screw

Fig.

2-8

hexagonal

screw

tonearm

base

2-7,

TONEARM

PIPE

REMOVAL

Remove

the

tonearm

described

Procedure

2-6.

Remove

the

12mm

dia.

retaining

ring

for

taking

”

off

the

tonearm

shown

Fig.

2-10.

Replace

the

pipe,

the

rubber

for

pipe

and

the

connector

shown

Fig.

2-11.

Temporarily

secure

the

pipe

with

two

hexagonal

screws

and the

screw

B2.6

shown

Fig.

2-11.

After

replacing

the

new

arm

pipe,

install

the

tone-

arm

that

the

three

portions

and

keep

the

same

height

shown

Fig.

2-12.

Remove

the

tonearm

again

from

the

tonearm

base.

Fix

two

hexagonal

screws

and

the

screw

tonearm

base

retaining

ring

12mm

dia.

Fig.

2-10

B2.6x6

hexagonal

screw

}

tonearm

2.6x4

hole

for

screw

hexagonal

screw

re)

2.6x4

—~

tonearm

pipe

connector

rubber

for

pipe

tonearm

pipe

Fig.

2-11

tonearm

pipe

surface

player

PS-2700

2-8,

COUNTERWEIGHT

SHAFT

REMOVAL

rebber

damper

counterweight

shaft

tonearm

body

Fig.

2-13

Note:

Install

the

shaft

slot-side-up

certainly.

2.9,

LATERAL

BALANCER

REMOVAL

Loosen

the

lateral

balance

nut

first,

and

then

remove

the

lateral

balance

shaft.

tonearm

body

hexagonal

screw

2.6x4

lateral

balance

nut

lateral

balance

shaft

lateral

weight

Fig,

2-14

Note:

The

lateral

balance

shaft

should

jut

out

few

inches

from

the

lateral

weight.

Also,

keep

the

lateral

weight

right

angle

against

the

tonearm

body

shown

below,

tonearm

body

right

angle

lateral

weight

Fig.

2-15

PS-2700

2-10.

MAIN

GEAR

REMOVAL

2-12,

TURNTABLE

SHAFT

BEARING

Remove

the

turntable

platter.

Remove

the

turntable

shaft.

Set

the

main

gear

shown

Fig.

2-16.

Remove

the

nut

shown

Fig.

2-17.

Remove

the

E-ring

(E5)

Replace

the

turntable

shaft

bearing.

Replace

the

main

gear.

rotler

sub-gear

main

lever

Turn

the

main

gear

direction

arrow.

lever

(AJ

main

gear

Fig.

2-16

Note:

Don’t

forget

install

the

roller.

The

roller

should

geared

with

the

slot

the

heart-shaped

cam

accurately.

The

sub-gear

and

the

lever

(A)

should

moved

smoothly

and

kept

horizontal

motion.

2-11.

CENTER

SHAFT

REMOVAL

turntable

shaft

grease

(CR-10:

7-662-001-11)

nut

turntable

shaft

bearing

Fig,

2-17

Note:

When

installing,

lubricate

the

turntable

shaft

with

grease.

PS-2700

}+§%|$j-~S-2700

SECTION

ADJUSTMENT

TONEARM

LEAD-IN

POSITION

ADJUST-

MENT

Remove

the

rubber

cap

the

tonearm

base.

Adjust

the

adjustment

screw

for

the

tonearm

lead-in

lever

with

slot-screwdriver

that

the

stylus

lowers

correctly

the

record

fully

automatic

operation,

slot-screw

driver

rubber

cap

tonearm

base

move

inside

move

outside

adjustment

screw

lead-in

lever

TONEARM

HEIGHT

ADJUSTMENT

When

the

tonearm

lifted

with

the

arm

lefter

manual

operation,

adjust

the

hexagonal

screw

shown

below.

4~10mm

record

(5/32

13/32”)

arm

lifter

AUTOMATIC

RETURN

POSITION

ADJUSTMENT

Remove

the

turntable

platter

mat

and

the

turntable

platter.

Put

the

tonearm

the

arm

rest.

Disconnect

the

power

cord,

then

set

the

REPEAT,

START/STOP

control

START/STOP

position,

Turn

the

turntable

shaft

clockwise,

engage

the

main

gear

with

the

turntable

shaft.

Then,

turn

the

main

gear

once

detach

from

the

turntable

shaft.

Set

the

lever

(B)

direction

arrow

marked

Fit

the

return

adjustment

jig

(Part

Number

9-911-814-01)

the

turntable

shaft.

Adjust

the

automatic

return

position

adjustment

screw

that

the

stylus

position

64mm

the

return

adjustment

jig

when

the

tip

lever

(A)

touches

the

turntable

shaft

shown

figure.

Make

sure

that

the

return

action

done

completely.

center

shaft

lever

(A)

square

hole

for

drive

gear

square

hole

for

lever

(A)

COUGH

this

point

the

square

hole

sto,

touch

the

lever

(A)

turntable

shaft

the

main

gear

center

shaft

lever

(B)

ANTI-SKATING

FORCE

COM-

PENSATOR

ADJUSTMENT

BRAKE

LEVER

ADJUSTMENT

Set

the

size

selector

lever

MANUAL.

Adjust

the

adjustment

screw

shown

below

stop

mode,

Fix

the

hexagonal

screw

that

wrench

goes

along

the

center

line

the

tonearm

weight

adjustment

screw

shaft

shown

below.

tonearm

shaft

hexagonal

screw

anti-skating

2.6x3

hexagonal

screw

force

lever

2.4x4

tonearm

weight

wrench

shaft

2~5mm

(5/64

13/64”)

center

line

BRAKE

DRUM

POSITION

ADJUSTMENT

Adjust

the

hexagonal

screw

shown

below

when

the

tone-

arm

puts

the

arm

rest.

parallel

nearm

return

adjustment

Jig

rear

frame

Fiexagonal

screw

brake

drum

3x6

adjustment

screw

SECTION

MECHANICAL

OPERATION

4-1,

AUTOMATIC

OPERATION

MECHANISM

Note:

The

size

selector

lever

positions

MANUAL.

The

REPEAT,

START/STOP

lever

released.

The

tonearm

positions

the

tonearm.

rest.

fulcrum

boss

microswitch,

play

(82)

reset

sub-lever

prake

lever

(1)

fever

(A]

PS-2700

tonearm

lead-in

lever

prake

lever

(2)

lead-in

cam

return

sub-lever

toggle spring

return

cam

brake

drum

main

lever

(B)

tonearm

lever

PS-2700

size

selector

cam

turntable

shaft

subgear

main

gear

size

selector

lever

clutch

lever

spring

repeat

lever

start

lever

microswitch,

start

(S1)

switch

lever

REPEAT,

START/STOP

cam

PS-2700

turntable

shatt

Note:

The

size

selector

lever

positions

MANUAL.

The

REPEAT,

START/STOP

lever

positions

START.

4.2,

MANUAL

LEAD-IN

OPERATION

seen

Meaning

symbol

mark

before

playing

during

playing

after

playing

————

operating

direction

arrow

)

return

action

These

symbol

marks

are

applicable

Pro-

cedures

4-2

4-5.

main

lever

pushed

out

the

heart-shaped

cam

the

main

gear,

(5)

The

subgear

pushed

across

‘o

the

turntable

shaft

;

clutch

lever,

turntable

shaft

thus

‘ates

the

main

gear.

switched

when

main

lever

pushed

Both

and

owON

simultane-

ously.

main

gear

brake

lever

(2)

The

main

lever

exerts

pressure

against

the

brake

lever

(2)

throughout

full

stroke

action.

Only

mechanism

with

tonearm

desi

operates

(PLAY)

The

spring

pushes

against

Clutch

lever,

The

main

lever

pushes

against

gear

lock

lever.

gear

lock

lever

pushes

inst

the

start

lever

The

brake

lever

(1)

moves:in

brake

lever

(1)

unison

with

the.brake

lever

(2).

start

lever

The

tonearm

braked

slightly

prevent

lateral

slipping.

(The

tonearm

will

slide

gently

across

the

record).

(3)

Motor

starts

turning

when

mo?

switched

ON.

microswitch,

start

(S1)

The

brake

lever

(1)

released

when

the

main

lever

reaches

final

position,

tonearm

also

released

from

the

brake

fever.

tonearm

spring

also

falls

back

size

selectorcam

~_°

inal

position

together:

switch

lever

REPEAT,

lead-in

cam

The

lead-in

cam

attached

the

main

lever,

pulls

the

tonearm

lead-in

lever

this

point,

where

‘he

cam

consequently

leased.

(The

tonearm

REPEAT,

START/STOP

cam

also

returns

original

position.

The

switch

lever

moves

Start

mode

completed,

outwards.

Play

mode

takes

over.

return

sub-lever

When

the

main

lever

reaches

gi NE

Net

final

position,

changes

from

Pull

REPEAT,

Miaka

horizontal

(tonearm

UP)

inwards.

START/

STOP

ven

the

return

cam,

slanted

{tonearm

DOWN),

lever

forward,

}

thus

causing

the

tonearm

pushes

“thee

ara

sls

ppt

ree

REPEAT,

START/STOP

cam

return

sub-lever,

pos

aga

the

The

lower

tip

the

ann

stops

this

position.

together

with

the

main

FANE

TEBOINESS

SOF:

lifter

located

here,

the

return

operation.

lever,

will

not

reach

this

pin.

PS-2700

4-3,

FULLY

AUTOMATIC

LEAD-IN

OPERATION

subgear

ubgear

pushes

across

turntable

shaft

Note:

Diagram

indicates

example

for

30cm

(12

inches)

baci

the

heart-shaped

cam

Put

record

the

turntable

platter,

and

unlock

the

main

gear.

the

tonearm.

main

lever

Grate

micraswitch,

play

(S2)

clutch

lever

brake

lever

(2)

thout

full

stroke

action.

brake

lever

(2)

brake

fever

(1}

start

lever

tor

starts

turning

when

(1)

The

brake

lever

(1)

moves

‘itched

ON,

unison

with

the

brake

microswitch,

start

(S17)

lever

(2).

30cm

(12

inches)

disk

operation

point

The

tonearm

braked

slightly

prevent

lateral

slipping.

Sem

(10

inches)

disk

operation-~

—~

—

Fhe

spring

also

falls

back

original

position

together

with

the

start

lever,

Mechanism

concerned

with

tonearm

descent

operates

(PLAY).

The

brake

lever

(1)

released

when

the

main

lever

reaches

final

position,

the

tonearm

also

released

from

the

brake

lever.

REPEAT,

RT/STOP

cam

REPEAT.

STARISTOP

aly

a/so

returns

Original

POsition,

size

selector

cam

17cm

inches)

disk

operation

point

lead-in

cam

The

lead-in

cam

attached

the

main

lever,

pulls

the

‘onearm

fead-in

lever

point

which

30cm

inches}

disk

operation.

Start

mode

completed,

play

mode

takes

over,

tonearm

lead-in

The

switch

lever

moves

lever

outeards.

rd)

When

the

main

lever

reaches

final

position,

changes

from

the

si.

front

edge

horizontal

(tonearm

UP)

HHOCHOr

deve

The

start

lever

moves

Pull

REPEAT,

START/

fro.

the

lead-out

groove

slanted

(tonearm

DOWN),

inwards,

STOP

lever

forward,

the

bit

marae

oan

and

the

tonearm

lead-in

thus

causing

the

tonearm

(12

inches)

disk

operation.

lever

parts

from

the

lead-in

The

main

lever

raises

up’

commence

its

descent.

ition

cam

mark

point,

the

return

cam,

and

pulls

The

lower

tip

the

arm

REPEAT,

START/STOP

hen

the

tonearm

Aicst

ios

eon

hah

hae

lead-in

cam

pushes

the

tone-

back

here

commence

lifter

located

here,

cam

stops

this

position,

arm

lead-in

lever

several

the

tonearm’s

descent.

inches,

Thus

freeing

the

tonearm

from

the

tonearm

lead-in

lever,

(The

tonearm

keeps

balance

here

because

braked.}

completion

lead-in,

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