Luxman Pd-121 User manual

SERVICE

MANUAL

MODEL:

PD-121,131

Features

of

Black

light

by

using

a

small

Cold

Cathode

Ultra

violet

light

tube

This

small

discharge

type

tube

was

developed

for

use

in

our

turntable.

As

its

features

far

out

weighed

that

of

the

conventional

Orange

Neon

as

strobo~scope

timing

light.

It

differs

in

operation

from

the

usual

fluorecent

tube

in

that

it

has

no

starting

filaments,

but

instead

has

a

small

electrode

near

each

main

cathode

at

each

end

of

the

tube.

So

discharge

is

enabled

by

a

high

firing

voltage

(250

volts).

However,

since

mercury

is

used

as

the

gaseous

medium

in

the

sealed

tube

operation

at

very

low

temperatures

eg.

below

5°C

is

very

difficult.

But

with

the

special

firing

circuits

used

in

the

PD-121,

operation

is

guaranteed

from

above

0°C.

This

tube

is

characterized

by

1)

Low

power

consumption

(0.7W)

2)

Low

operating

temperature

3)

Smali-size

4)

Long-life

(20,000

hours)

5)

Ultra

Violet

light

at

3650

ik

So

to

make

the

strobo-scope

pattern

very

clear

as

if

to

appear

stationary,

the

tube

is

fired

by

short

duration

pulses,

and

to

make

for

a

high

visibility

"dayglo”

type

paint

is

used

for

the

strobo

markings,

this

type

of

paint

converts

Ultra

violet

light

into

visible

coloured

light.

MAIN

ALIGNMENT

PROCEDURE

1)

PB-650

D.C.

voltage

adjust

13.5

0.5

-

PD121

|

WE

OSV

-PD131

~

YAL-VOL

Re

2)

3)

Pre-adjust

of

the

Turntable

position

a)

b)

c)

After

mounted

every

components

on

both

the

chassis

and

the

panel,

these

two

shall

be

put

together.

Loosen

the

4

screws

for

provisional

fixing,

and

put

the

turntable

on.

Provisionally

fix

the

motor

when

the

equivalent

gap

between

the

panel

and

the

turntable

is

obtained

as

per

the

drawing.

(The

provisional

fixing

is

possible

with

a

(+)

driver

through

the

2

holes

for

tightening

of

the

motor-fixing

(-)

screw

on

the

turntable.)

Poo:

Gap

Turntable

Hole

for

tighting

of

the

Motor-fixing

screw

Pre-adjust

of

the

Reed

Switch

and

the

height

of

the

Selector

Switch

a)

b)

c)

d)

e)

f£)

Hold

the

switch-button

on

the

panel

with

the

SCOTCH

drafting

tape

etc,

and

put

together

with

the

chassis.

Note

that

the

chassis

and

the

wood-frame

should

not

be

screwed

together

at

this

stage.

Adjust

the

screw

which

fixes

the

switch-mount

metal

so

that

the

button

protrudes

about

2mm

from

the

panel-surface.

Power-on

with

the

mains

cord

connected

to

the

rated

AC

mains

power

source.

4

Operate

the

speed

selector

switch

to

check

through

the

stroboscope

whether

smooth

speed-selection

is

possible.

(In

case

correct

rotation

is

realized,

the

figures

in

the

stroboscope

are

observed

standstill.)

When

the

above

selection

is

found

to

be

not

smooth,

re-check

its

operation

by

varying

the

position

of

the

switch-mount

metal,

which

is

stated

in

the

(b)

clause.

Further,

when

the

operation

checked

in

(e)

is

found

unstable,

check

again

with

moving

the

Reed

Switch

as

per

the

drawing.

Kas

Reed

Switch

PB-652

SCOTCH

drafting

tape

a

i

Panel

Li

OFF

ON

oh

eR

HERP

SRE

LEIS

LIT

TE

TSE

ETRE

LEDER

EE

FINAL

ADJUST

2)

3)

4)

5)

Setting

of

the

platter

After

fixing

the

wood-frame

and

the

chassis

together

with

screws,

the

final

check

shall

be

made

in

the

same

procedure

as

stated

in

the

section

(2)

pre-adjust.

Switch-button

Height

Same

procedure

as

made

in

the

(3)

-

(b)

pre-adjust.

Adjust

the

2

screws

for the

switch-mount

metal

at

the

bottom

side

of

the

chassis

to

obtain

2mm-protrusion

from

the

surface

of

the

panel.

Speed-Selection

Ascertain

the

firm

selection

of

speeds

by

operating

the

selector.

When

it

is

unstable,

adjust

the

2

screws

for

the

switch-mount

metal.

In

case

the

section

(2)

is

not

fulfilled

is

(the

buttons

do

not

protrude

from

the

panel,

or

the

protrusion

is

extremely

different

on

the

ON-

button

and

OFF-button),

repeat

the

pre-adjust

section

(3).

Hinge-Height

Adjustment

Set

the

acrylic

cover

to

the

hinge,

and

adjust

as

per

the

drawing.

Sponge

Dampar

Hinge

ie

doe

Woot

flame

sd

Installation

of

the

Tonearm

Base

Install

the

base

to

the

chassis.

Turn

the

base

to

the

clock-wise

direction

by

1/8

rotation

until

it is

locked,

when

ascertain

that

the

base

is

firmly

locked.

Then

press-in

the

lock-release

button

and

turn

the

base

to

the

counter-clockwise

direction

to

remove

the

base.

Try

this

procedure

2

or

3

times.

as

onan

na

en

AP

EON

A

TEI

YS

BLOCK

DIAGRAM

SPEED

ADJUST

BLACK

LIGHT

DRIVER

FOR

BLACK

LIGHT

B.D.

MOTOR

POWER

SW.

POWER

TRANSFOMER

AVR.

SECTION

ELECTRODE

OF

BLACK-LIGHT

MAIN

SUB

=

SUB’

MAIN

CIRCUIT

DIAGRAM

FOR

BLACK-LIGHT

R204

1.8K

12H

6201

350V

4.7

R205

47K

ZW

OOS

C204

100P

230V

AC

120¥

AC

++

13.5V

E

120¥

AC

6205

2200P

oD"

33K

D202

TRANS

SECONDARY

3K

NUMBERS

ARE

EQUIVALENT

TO

THE

SOCKET

NUMBERS.

CIRCUIT

DIAGRAM

eo

Cas

3.

WRI

1K-B

a

pra

ne

AT

KB

10K

-

POI3T

|

;

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1e201

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|

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|

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|

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=

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ro

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50/

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F103

1.54

~

PD121

(1A.

-

PD131)

1

PB-650

<

fet

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VS

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wie

ote

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|

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284733

p107,102.

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SW-1

POWER

(OFF)

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(

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D103

W-0.4

SW-2

POWER

(ON)

1

q13

280372¥

pia4

1N4001

33.14

SW301

SPEED

SELECTOR

rere

over

ere

4

D105

WZ-071

45

SW302

SPEED

SELECTOR

#

P.T.

P+2077

(UL,

120v)

D106

1K-188FM-1

93.14

VR-1

SPEED

ADJUST

P~2078

(220V,240V)

45

VR-2

SPEED

ADJUST

P-2078A

(SEMKO

,

DEMKO)

Qiot;

2SA733

@102;

280256

—Qin3

;

280372

D101

D102

;

iN-4003

i

H

1

—

Dioa

;

W-04

102

Dios;

1N-4008

G2)

Fer

bea

‘Did:

W-O71

Dios

;

1K-188

-

=

C1250

0.047

Fs

1

x

2

AC

120V

ee

#

7

60

Hz

=

t

‘

1

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~{j9g)--(105+

4107)

4109)

4104}

4198+

-

--—---

~----

------

--

-

+

ee ee

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@-@)

MOTOR

SECTION

1

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=

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|

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SW-1

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a

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BI

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i

O201-O204

;

280

945

205;

2801447

1

UNLESS

OTHERWISE

SPECIFIED,

ALL

REGISTORS

ARE

IN

OHM,

H

Dor:

14007

D202:

W-04

—D203~Dz0g

;

1N—4448

V/AW;

Ke10°OHM,

ALL

CAPACITORS

ARE

IN

MICRO

FARAG

;

'

R200

1.8K

1/2

W

PF=10"¢

MICRO

FARAD,

f

=

0201

=

2

DUE

TO

CONTINUED

RESERCH

FOR

IMPROVEMENTS,

H

5

{+

LUX

RESERVES

THE

RIGHT

TO

ALTER

THE

CIRCUIT

=

oF

AND

SPECIFICATIONS

WITHOUT

NOTICE.

=

&§

=

~

1

ef

2

Sw-1;

POWER

SW(OFF)

H

R212

10K

=

ane

7

ko

C74

100P

Sw-2;

POWER

SW(ON)

:

Cam

:

C202

R206

1.8K

1/2

W

Swaor

;

SPEED

SELECTOR

(331/3)

|!

AC)

0.001

CK) CK)

Swaod

;

SPEED

SELECTOR

(45)

'

Uhs

I

Ch,

Che

0202

203

~

204

ES

Gicsics

VA

1;

SPEED

ADJUST

(331/3)

|

ere

=

1a

VR-2

;

SPEED

ADJUST

(45)

'

&

a

5

PD

]

21

U

-]

3]

U

VR

101

;

REGULATOR

VOLTAGE

:

“

ADJUST,

(a:

a

;

210;

1BV

PB-851A

L

wa

wee

eee

te

ew

ow

ow ee

a

8

ro

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rn

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wwe

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:

Qa:

280733

ame:

280286

©

dams;

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bd

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;

1N-8003

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:

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t

1

:

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6

\o

tas:

Wa

:

Q)

C1

250v0.022

ORANGE

i

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05aT

40g

+

1K-188

tan

1

S\O

3/8

{_

:

230V

©

Wot

Sli)

ee

2

!

\

3

$

wa01

i

Pag

YELLOW

—

=

ig

PB-652

|

=

1

es

R03

3.3K

©

=

i

Nests

3

=

0493

ee

{

4

Ragt

33K

27

:

f)

3

Patel

=

s

=

i

Ca

250V0.022

o

=

Ze

Fa

=

.

=

‘

AC

220/240V

4

BLACK

fe

2

EMS

BATION)

S = =

z

‘

50

Hz

jo?

9

t

|

1

proro

PB-653

©

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Ooden"s

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tan

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SWw-i

NOTES

;

pratt

199099

|

sielatenateteiatataatatetanenen

telah

otaiaies

o>

obenar

eostete

or?

ahataiatatataietatatatatatatetataratatananeten

aren

ee4

Q201~

G2

;

280945

205

;

2801447

1

UNLESS

OTHERWISE

SPECIFIED,

ALL

REGISTORS

ARE

IN

OHM,

'

TC

201

Daor

;

1N-4007

D202;

W-04

D203

~

D20s

;

18-4448

aw

K

=10°0HM.

ALL

CAPACITORS

ARE

IN

MICRO

FARAD;

:

Rang

1.8K

IAW

PF

=10°MICRO

FARAO,

1

Se

aes

2°

DUE

TO

CONTINUED

HESERCH

FOR

IMPROVEMENTS,

;

am

z

S

=|

[=

LUX

RESERVES

THE

RIGHT

TO

ALTER

THE

CIRCUIT

»

B20

2

s

St

PS

AND

SPECIFICATIONS

WITHOUT

NOTICE.

:

on

RS

ae

Es

23

a

«a

SSeS

|

=

Ss

8

1

235

=

zoe

2

=

!

=

e327

=

Sw-1

—;

POWER

SW{OFF)

t

2

=]

Ravik

==

44

C204100P

i

eed

SW-2

(ab)

;

POWER

SWiON}

1

2

0201

R206

1.8K

1/)W

Swaor

;

SPEED

SELECTOR

(33

1/4)

\

=

XK) CK)

ore

Swan

SPEED

SELECTOR

(45)

:

bs

OY

ae

t

VA

1:

SPEED

ADJUST(93

1/3)

'

5

z

=

Wiz

2-8

VR

2;

SPEED

ADJUST

(45)

\

z

g

25

2

D

x

]

21X

131X

VA

101;

REGURATOR

VOLTAGE

:

=

= =

=

.

ADJUST,

(a

:

a

\

210:

18V

'

i

Leww

am

wwe

en

ene

we

ew ew

ee

He

ee

nee

ewe

eee

Re

eee

ene

we

ene

we

ene

me

a

ene

ns re

enw

new

eenee

~

RI

2K-B

(15K-B)

ke

af

i

t

aaa

a

ia

ei

ie

ne

NY

PB-650

*

F103

1.5A

(PD121)

1A

(PD131)

*

F404

1.5AT(PD121)

1AT

(PD131)

F405

1.5AT(PD121)

1AT

(PD131)

SO

ee

eal

PB

653

(R401)

Q101

28A733

(Q401)

10K

€

402)

102

2SD256

(

402)

3.3K

€

403)

103

28C372

(

403)

680

(

404)

D101

1N4003

(D401)

680

(

405)

102

1N4003

(D402)

10K

(

406)

103

W-04

€

403)

10K

(

407)

104

1N4001

(

404)

10K-B

(VR401)

-7uF

35V_

(C401)

105

WZ-071

(

405)

0.5A

(-

)

20uF

35V

(C402)

106

1K-188FM

(

406)

1N4007

4.7K

100pF

W-04

33K

2200pF

1N-4448

3.9K

28C945

1N-4448

6.8K

28C945

1N-4448

1.8K

28C945

1N-4448

1.5K

280945

560K

1.2K

28C1447

JPW-03

(jumper)

4.7uF

350V

JPW-03

(jumper)

0.001uF

1.8K

0.012uF

Luxman PD-121 User manual

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