Sony Multiscan CPD-1404S Service Manual

SERVICE

MANUAL

AEP

Model

•

REVISED

Computer display Picture tube

Viewable pixels Scanning frequency

Video input signal

Sync input

Power requirements

Australian

SPECI

FICATIONS

Direct-driven monitor Super Fine Pitch Trinitron colour tube

V)

14 inch (13 90 degree deflection Anti-glaring dark screen Useful screen 274 Phosphor P22

0.25 mm Aperture Grille pitch 1024 x 768

Vertical sync signal frequency: 55

-100Hz

Horizontal sync signal frequency:

28 - 57kHz

Analog

0.714

Vp-pl75n

TIL

level. Polarity free. Composite sync is acceptable at Pin Sync on green

100-120

50 -60

picture tube measured diagonally

mm

x 207

mm

RG8

positive

terminated

is

acceptable.

V/220-240 V AC,

Hz,

1,8 - 1,0 A

UK

Chassis

Model

No.

SCC-040B-A

Model

Chassis

No.

SCC-040C-A

Multiscan

#

8.

••

11

MICROFILM

---

COLOUR.

COMPUTER

SONY:·

-

Continued

on

MUlTISCAN®

DISPlAYs-

CPD-1404S

c

..

p

mm

355 x (14 x13

-

348 x

411

3

/4

x161/a

-r

~

J

13.1 kg (29.1 Ib) Including

AC power cord (1)

mm (w/h/d) . inches)

E E

\0

lO

M

E E +

~I

f

the tilt-swivel

Dimensions

..,

-

240

I.

348

Weight

Supplied accessory

Design and specifications subject to change without notice.

"'-

I.

238

1"\

~

Iv

y

I

mm

411

III"

mm

•

TTTIT

,iITn

./

.1

•

WARNING

To prevent fire or shock hazard, do not expose the unit to rain or moisture.

Dangerously high open the cabinet. Refer servicing to qualified personnel only.

FOR CUSTOMERS

WARNING----------------------------------~

THIS APPARATUS MUST

IMPORTANT

The wires code:

As the colours of the wires correspond with the coloured markings identifying the terminals

plug proceed as follows: The wire which is coloured green-and-yellow must be connected to the terminal symbol coloured blue must be connected to the terminal which is marked with the letter N or coloured black. The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red.

in

this mains lead are coloured

Green-and-yellow: Blue Neutral Brown Live

in

the plug which is marked by the letter E or by the safety earth

... or coloured green or green-and-yellow. The wire which is

voltage is present inside the unit. Do not

IN

THE UNIT.ED KINGDOM

BE

EARTHED

in

accordance with the following

Earth

in

the mains lead of this apparatus may not

in

your

•

--2--

.

,.-

.,,...'

..

'~.

~'I'"

~

.•

",.

•••

.

~.

'IIi'

.

:,

'

..

:~

'

..

iII.~_~~ikalii~~~b!ii.llb,ihi!.\~h~ih'"

~·i.,ilW.l~t~:i:.i;:"'I~'

J~!i"~.iiil;;;;~w'~';l;.,~~i\~H>J~'il~:il~lIiji~~L;;i;.;~,,~,,,.{'~J~.~.::li~.i:(i;~';;"

,;;,;':;,,;,L

:,,'

ilH'

"

,'!F

1\:'

....

,I

~;.~t~:'1

TABLE

Section

1.

GENERAL

1-1.

Location

1-2.

Connections··········································· ................. 5

1-3.

Use

of

the

1-4.

Timing Chart·························································· 7

2.

DISASSEMBLY

and

2-1. Tilt 2-2.

2-3. Chassis

Cabinet Removal

DA(DC-I) Board Removal·····································

and

2-4. D Board Removal·

Title -

and

Function

of

Controls ........ ·

..

· .......... · ...... · 4

Tilt·Swivel··········································· ... 6

..

········································ 8

B Block Assembly Removal·

..

·······

..

········································

.. ··

.......... ....... 9

OF

2-5. Picture Tube Removal········ ......................................

3.

SET-UP ADJUSTMENTS

3-1.

Beam

Landing························································

3-2. Convergence··········································· ................

3-3. Focus Adjustment··············· .....................................

3-4. White Balance···························· ............................

3-5.

Bright Controllable Confirmation ...............................

CONTENTS

4.

5.

5-1. 5-2. D

6.

6-1. Circuit Boards Location

..

8

10 10

11 12 15 15 15

6-2. Schematic Diagrams and Printed Wiring Boards· ...........

6-3.

7.

8.

I CPD-1404S

Section

SAFETY RELATED ADJUSTMENT··········· ...............

CIRCUIT ADJUSTMENTS

DA(DC··I) Board Adjustment

and

DA(OC-l) Board Adjustments .........................

DIAGRAMS

Frame Schematic DA(OC-l) Board·············································· D Board···························································33

B Board···························································40

Semiconductors· ......................................................

EXPLODED ViEWS·················································· 47

ELECTRICAL PARTS LIST

Title

..

··································

..

··································

Diagram······ ............................

'"

...................................

..

······

'_

16

19

20

23 23 24

26

45

48

NOTE. Parts Difference

Serial

AEP

UK

AUS

BEZEL ASS'Y (No include AERIAL

without CANCEL COIL ASS'Y

Serial

No.

BEZEL ASS'Y (X-4029.894-3)

with with CANCEL

No.

5,000,001

to

5,008,000

(X-4029-894-1)

ASSY)

5,800,001

and

later

COIL ASS'Y (1-941-843-19)

SAFETY·RELATED

COMPONENTS

.&

ON

VIEWS

AND

SAFE

OPERATION.

WITH

SONY

AS SHOWN PUBLISHE'D THAT

CEDURES

ARE

IDENTIFIED

REPLACED

IDENTIFIED

THE

SCHEMATIC

IN

PARTS IN

THIS

BY

CRITICAL

IN

THIS

WHENEVER

OR

IMPROPER

THE

SONY.

COMPONENT

PARTS REPLACE

WHOSE

MANUAL

TO

MANUAL.

CRITICAL

OPERATION

BY

SHADING DIAGRAMS, LIST

ARE

THESE

PART

NUMBERS

OR

CIRCUIT

SAFE

OPERATION

FOLLOW

COMPON-ENl'S

No.

Serial

5,008,001 and later

BEZEL ASS'Y (X-4029-894-3) (include AERIAL

ASSY)

with CANCEL COIL ASS'Y

( 1-941-843-19)

WARNING

CRITICAL

COMPONENTS

IN

SUPPLEMENTS

ADJUSTMENTS

IS SUSPECTED.

'!

AND

MARK

EXPLODED

THESE PRO·

TO

APPEAR

ARE

.-

-3-

:"''""':''''''';

"

,.~.

"~'I.;mL..'.;!

CPD-1404S

.--------------~

... , ..

,.,:.~:

..

:~;.;

..

i.:;.,."".

,.;,;

•.

,J:;

....

i'",·~,.;;~~;~i~Jl;.

"

....

;;..;i.~,·~~

..

.........u.;~:.L:i~i2~.;~~,2~~'

SECTION 1

GENERAL

.::

....

, .

1-1. LOCATION AND FUNCTION OF CONTROLS

-

=

-r

w

'-

.,

III

POWER

To turn on the power of the unit, press this switch. The indicator will light up. To turn off the unit, press it again.

switch and indicator

"r;=======;-.

Colour monitor cable

•

Three-row D-sub 15 pin RGB input connector

rn

CONTRAST control

Turn clockwise to increase contrast, or counterclockwise to decrease contrast.

rn

BRIGHTNESS control

Turn clockwise for a brighter display display.

~

AC

IN

connector

Connect

to

an AC outlet with the supplied AC power cord.

())

(0)

,orturn

Jllllli

c

counterclockwise for a darker

r

1111

'1111

ill:.

Ullilli

:

I.

I~

~

..........

I

•

J

]

'/

\

~

,

-4-

1i

•••

iII.Illi.

[i]

[ID

rn

00

__

rillliAnuiL~liIiiIliiildw~~~~Jfu~.iioJ~liii.,;~·~~

AUTO SIZE switch

Depending on the microcomputer connected switch to the appropriate position. LOCK: For the IBM PS/2 microcomputer using the VGA mode.

When this switch is set to adjusted to the VGA mode, and the H SIZE, H SHIFT, V SIZE and V CENT controls will have

ADJ: For other microcomputers having

When this switch is set to ADJ, adjust the H SHIFT, V SIZE and V CENT controls.

H

SIZE

(horizontal size) control

Turn this control to adjust the horizontal size of the display.

LOCK, the timing

no

to

the display, set this

effect.

analog RGB output.

display with the H SIZE,

H SHIFT (horizontal shift) control

Turn this control to adjust the centre of the display horizontally.

V SIZE (vertical size) control

Turn this control to adjust the vertical size of the display.

lL.:r

.u.,nd·ti.w~u~.:m!t~h

is

automatically

.•

~.~U.;'~~Ll';":::~I~:';'l1hi

\jh_:~i,,,,;),~i)

......

,

II:

I'

1\:'

..

111

~j"

;~Y:;!.'l~

';U:,.J;

f:n:.'

:\

....

:.t

.....

~,

,H";tt..a.:.:

I CPD-1404S

00

V

CENT

(vertical center) control

Turn this control to adjust the centre of the display vertically.

1-2. CONNECTIONS

Connect the power cord and the monitor cable. Be sure to turn the power of the unit off before making the connection.

Microcomputer

to

RGB OUT

Three-row O-sub 15 pin (male)

AC power cord

---c::iIld

(supplied)

monitor cable

Colour

toAC

Rear of the CPD-1404S

"'-'=====

t~!~i~~~

IN

1 Align the plug with the receptacle.

To disconnect the

plug, loosen the screws.

-5-

2 Plug

in

screws by hand.

and tighten the

.•

~~~"

-m~'!"~~~:

:'1'~~

..

,

'1

,!~'

:·'··v~!-'

.--: .

...

1-

~~"

RGB

Input

Assignment

2

3

4

5

0

0000

6 0 0 0 0 010

00000

11

15

1

R

I

G~D

1-3. USE OF THE TILT-SWIVEL

With the tilt-swivel, this unit can be adjusted to be viewed at your desired angle within 90° horizontally and 13° vertically.

2

G B

I

G~D

I

3

12

I

4

GND

I H

~:Ncl

5

GND

V

~:Ncl

G~D

I

15

9

G~D

I

G~DI

•

To turn the unit horizontally, hold it at its bottom with both hands as illustrated below.

-6-

•

"

.'

1-4.

TIMING

CHART

The following timing chart shows approximate values.

MONITOR ACCEPTABLE TIMING EXAMPLE

-----'

___

1 I

I I

U i ! U

1

BAC K PORC H(B.

1Il

VGA [Il 1024 x 768 interlace

FREO.

H PERIOD (IlS) 31.78

V PERIOD (H)

SYNC ITY

CLOCK FREO. (MHz)

P)

POLAR-

,I

---jl--l~_·

-i

1---'

----.:-=:..:==----

,"

H (kHz)

V (Hz)

SYNC B.P ACTIVE

SYNC B.P 34 ACTIVE H V

ACTIVE I 1 1

..

e---

O-D--<~~I

-

1

P-E-R

1

31.47

70.1 70.1

3.81

1.91

25.42 449

400

NEGA

pas

I

25.175

2

pas

NEGA NEGA

...

1 VIDEO

SYNC

I '

..

~.j...1

-1;-.

..

..-

SY

I I

2 3

31.47

~

449 525

2

59

350

I

25.175

NC

31.47

59.9

~

'2

32

480

NEGA

25.175

FREO.

H

V

POLARITY

SYNC

CLOCK FREQ. (MHz)

(fh

= 35.52 kHzJb _ ;:1 .

H

(kHz)

V PERIOD (IlS)

SYNC B.P

ACTIVE

PERIOD (H) SYNC B.P ACTIVE H V

(Hz)

POSI

3',

f'.

2~

'j

1

22

4(/

20/2'

"

44,~

1'/,

1 "

, ,

" '

, ,

'/

,

W,

[Il: When the AUTO SIZE SW

automatically adjusted for the above listed video modes All sizing controls ineffective. To adjust sizing

for other video modes, change

adjust the controls.

[1]

35

kHz non-interlace (example)

800 x 600

FREO.

H

V

CLOCK FREQ. (MHz)

H (kHz) V

PERIOD (IlS) SYNC B.P

ACTIVE PERIOD (H) SYNC B.P ACTIVE

is

in

the locked position. picture size is

(W.

on

the left side of the monitor are therefore

the

SW

to

ADJ and

@]

35.16

(Hz)

56.0

28.44

3.11

2.67

22.22 628

14

600

36.000

7

[1],

@]:

[Il).

48 kHz non-interlace (example) 1024 x 768

FREO.

H

V

FREQ. (MHz)

CLOCK

SYNC POLARITY FREE

H V

PERIOD (IlS)

SYNC B.P ACTIVE PERIOD (H) SYNC B.P

,

ACTIVE

(kHz)

(Hz)

19

48.

60.0!

20.75i 00

1.

2.75i

16.00:

803!

28.

768~

64.000;

1

4

.-

..

~......:-:.

-7-

CPD-1404S

:

.~:.:..

.

SECTION 2

DISASSEMBL Y

2-1.

TILT

AND

CABINET

REMOVAL

® five

@ Remove

screws

CD

Remove push

(VBTP4 x

the

cabinet

the

two

claws.

tilt

16)

in

the

arrow © direction.

the

arrow

<B>

•

direction while

•

2-2.

DA

@ Remove

(DC-1)

<D

two

the

DA

BOARD

connectors

(DC-1)

board

REMOVAL

®

two

in

the arrow direction

•

screws

p

®

two

screws

( + PSW3 x

8)

I

-8-

1

2-3. CHASSIS

@ six connectors

(P50'.

P504 - P506. P508 P509)

<D

",.w,

~

Loo,,"

AND B BLOCK

~

( +

PSW4

x 1

tho

,,'Ow

ASSEMBLY

P505

~

.~~:J

';

P50'

P504

jI'~

0)

~

REMOVAL

1

~)

, " -

I

\.1

I

I)"

@ Pull

direction

@ Remove the chassis in the arrow ® direction while

:>

_

,.

'i

;

/>l

"7~

W-.::

I I

~P509

~

P506

out

push

P508

the

two

SA

block

claws

assembly

in

the

in

arrow

the

<El>

direction.

arrow

j9

II:

R'

\!j~~

@

screw

® anode cap

@

connector

(+

BVTP4 x 8)

.-

-9-

CPD-1404S

. .

" •

~~.'!~i..i

......

~·~:.~~::

••

~~i,

.. (:; ..

dh

..

" ,

•.

,~

..... " •..

.!.:·.u':.'J.u(

.••

t~

•.

~,;.

'.'

.• , ...

·:

..

·',

........

J,lII'::,..:;.ti··.'·:;H.II:.'.··!:

. . . · .' .. ..

.•

::,:t

.......

tt

..

!l:

....

,~~

t'·'W1dHM::.·····--.-_I.1l

~*ijlis;WMiWtrictiRtfidHfL

2-4. D BOARD REMOVAL

the

claws

two

(J)

Remove

the 0 board

the

arrow

2-5. PICTURE TUBE REMOVAL

•

®

•

REMOVAL

• REMOVING PROCEDURES

CD

Turn direction indicated

• HOW TO HANDLE AN ANODE-CAP

CD

Don't hurt the surface of anode-caps with sharp shaped material!

~

Don't press the rubber hardly not inside of anode-caps!

metal fining called

A terminal

@ Don't turn the foot of rubber over hardly!

The shaner·hook terminal will stick out or hurt the rubber.

OF ANODE-CAP

up

one side of the rubber cap

is

built

by

the arrow ®.

in

the rubber.

as

in

the

to

hurt

shaner-hook

(+

PSW3 x

8)

@ Using a thumb pull

firmly arrow@.

up

in

the direction indicated by the

the rubber cap

@

picture

tube

@ When one side of

separated anode-cap can up

the rubber cap and pulling

direction of the arrow

Anode bunon

the

from

the anode bunon, the

be

rubber cap

removed by turning

© .

up

it

tube

in

the

•

is

-10-

j "

SECTION 3

SET-UP ADJUSTMENT

• The following adjustments should a complete realignment

is

reQtJifed

be

made when

or

a new picture·

tube is installed.

• These adjustments should

be

performed

with

rated

power supply voltage unless ontherwise noted.

The control and switch below should unless

otherwise CONTRAST BRIGHTNESS

Preparation

•

Face

the PICTURE TUBE

not

to

• Turn

ON

entire screen

3-1.

BEAM

1. Receive a signal

noted:

control·········

control ....... 5096

be

influenced by magnetic force.

the

POWER

with

switch. and degauss the

degausser.

LANDING

of

480

8096

to

LINE

be

east

(fH=31

or

set

as

west

kHz)

follows

so

with

signal generater.

2.

Adjust

coarsely. and then set

position

3. Switch over the signal generater

4. Move the deflection yoke backward. and purity to Fig.

5. Move the deflection yoke foward. so that the entire screen

6. Switch over the signal

the

white

balance. convergence and

purity

as

shown in Fig. 3 - 1.

controls

to

green.

magnet so that the green on the screen

become in the centre

of

screen

as

shown

3-2.

and

adjust

to

become green entirely.

to

blue and green. and

focus

centre

adjust

with

confirm the condition.

7. When landing at the corners is not right. correct by using the magnet (Fig. 3 -

3).

as

in

Perform the adjustments

.3-

1.

Beam

landing 3 - 2. Convergence 3-3.

Focus

3 - 4. White Balance

Note:

Test Equipment Required.

• Signal

generator:

• Colour Annalyzer

• Degausser

Fig.

In

3-1

3-2

order

as

VG807.

(Astro

purity

Disk magnets or rotatable magnets correct these

follows:

VG809

Design)

control

disk

area

... etc

(a-d).

DC

II

'R

r

~

I

"I

~

<ll@

purity

-11-

Fig.

.-

3-3

CPD-1404S

3-2. CONVERGENCE

(1)

Horizontal Adjustment

• Before starting. H.

CENT and Screen

(Static

1.

2.

3.

Convergence

Receive a Adjust blue

movement) Adjust blue movement)

dot

H.

STAT

dots

on the centre

V.

STAT

dots

on the centre

and

Vertical

on

the

perform

Adjustment)

signal and Set CONTRAST

VR

magnet

Static

Centre

Distortion

of

V.

SIZE.

to

coincide red. green and

of

to

coincide red. green and

of

Convergence

Screen.

V. CENT,

adjustment

screen.

V.

STAT Magnet

H.

SIZE.

rightly.

to

normal.

(Horizontal

(Vertical

When

CD

~

I

When wise.

IT1Qving

moving

the V.

'\

the V.

~

@ When

moving

tilt

the

V.

@

close.

•

Magnet open or

STAT

®

-4+-~f,-

R I R I

STAT

magnet counterclock-

I

R

G B

~i~

V.

STAT

magnet

clockwise.

•

STAT

magnet and open or close.

*

If

the red, green and blue on the centre adjustment tracking.

Tilt

(

vergence

• When the direction dots'

using V.

the V.

to

of

move

dots

do

of

screen

with

H.

STAT

at the same time while

STAT

magnet and adjust

open or close the

V,

STAT

magnet

arrow

® and @. red, green and blue

as

shown

below.

V.

is

STAT

not

coincide

VR, perform

static

magnet.

moved

con-)

in the

*

If

the red and green

blue

dot,

adjustment

• HMC

1. HMC (Horizontal Misconvergence) correction and

HMC Correction

and

VMC

magnet.

motion poles) magnet.

of

the Electron Beam

(A)

a<b

R G B

00

U-J

R

a=b

0 0 0

~

a b

"'G

a b

dots

do

not

with

BMC (6-poles) magnet.

correction

0

B

for

with

HMC Correction (B)

coincide

BMC

(6-Poles)

the BMC (6-

a>b

a=b

with

R G B

o

R

0 0 0

00

l-LJ

a b

"G

B

t.......L-.l

a b

•

•••

-12-

".;'

.••

-I

..

.j-::....:'!;·.~

2.

VMC (Vertical Misconvergenc_e) correction motion

poles) magnet.

of

the Electron Beam

VMC Correction

*+

c<d

cSR

o

*'

d G d

BOB

(A)

c=d

cEO

R

OG

with

VMC Correction (B)

c>d

C G C

g

d B B

the

R

*'

d

and

BMC

(6-

c=d

ER

G

®H.TIL T adjustment

BGR

~+-

Operation

(taking

and

in)

out

putting

Correction

RGB

board

RGB

~+-

Operation

(taking

and

putting

in)

out

09

51:

'RC

CD

Adjust

the Y axis

VR, VRz

Lower Upper

section

Surface of Picture Tube

cross

misconvergence.

correction

-+-

BGR

RGB

-+-

Adjust on

both

@Adjust

so

that

the

right

the X axis

order

of

R.

G,

and

left

sides.

cross

misconvergence.

Surface of Picture Tube

""..{...._-H-j--XCV

B is

the

coil

same

)6

33

IV

l2

-13-

Adjust

so

that

the

crosses

of

Rand

B disappear.

::;, "

....

'

..

CPD-1404S

(2)

Horizontal Adjustment

(Dynamic

1.

Loosen

2. Remove deflection yoke

3. Move

4.

Tighten Install

5.

and

Vertical

the

environs

Convergence

deflection yoke screw.

the

deflection yoke for

the

deflection yoke

Adjustment)

spacers.

deflection yoke screw.

-Dynamic of

the

best

spacers.

Convergenca

Screen

convergence.

0-0-0

B G R

0-0-<:>

R G B

(3)

Screen-corner

0-0-0

f--------

B G R

Convergence

R G B

0-0-0

R G B

~!

B G R

0-0-0

~~

r----------~

RV506

R-BIAS

B-BIAS

RV505

RVS01

RVS09

H.

STAT

RVS10 G-BIAS

ACL

0-0-0

B G R

Affix

a

ass'y corresponding

to

areas.

0-0-<:5

R G B

a permalloy

the misconverged

•

a - d : screen-corner

misconvergence

if

o 0

o

·e·

-14-

3-3. FOCUS ADJUSTMENT

1.

Turn

2.

3.

Receive Adjust point

50

the signal

a dot signal.

FOCUS

for

Ur---+---

mm

-'----+----t

best

to

VR

focus.

70

so

mm

1024 x 768

that

the

(fH =

48kHz).

following

figure

8.

Adjust the R. X =

(Decrease 10

9. Repeat steps 7 at

10. Receive the VIDEO non-signal. check

1 1. Receive

the CONTRAST VR

white

balance at luminance

G,

B-BIAS VR.

0.283.

nit

130

raster MAX.

480 that

BRT

Y =

it

using the BRIGHT VR

cannot

nit

and

is CUT -OFF

the LINE), and the

luminance becomes

MAX

and

0.298

be

to

8.

10

all

white adjust

CaNT

to

MIN. and obtain

10

if

obtained.)

and

obtain the white balances

nit.

with

BRT CENTRE,

signal

MAX.

ACL VR

120

(VGA

(RV501)

± 12 at both

,

••

!II.I~t

"''''''''_''1

CPD-1404S

nit

using

luminance

that

the

CaNT

31.5

Hz,

so

1

'\

,,'

h

, '

,

~

i

L

1

D9;

S15:

PRO'

r'

~

I

- 1

~

• I

"I

~

I

f

3-4. WHITE BALANCE

Check

that the have been adjusted. and out

for

1.

Receive

5 kHz,

2. Set

BRT CaNT

SUB-CaNT SUB·BRT R·DRIVE B-DRIBE

R-BIAS G-BIAS B·BIAS ACL

3.

Check

change Horizontal Vertical

4. Use the PACK) Use R.G,B-BIAS VR

MIN.

ex

5..

Use the SCREEN VR CUT-OFF.

6. Receive

0.714

7. Receive the white 6 % the

becO,mes SUB-CaNT VR so

130

size.

more

than

the

VGA

480

LINE).

the

VRs

as

RV205 RV204 RV502 RV511 RV504

RV503 RV506 RV510 RV505

RV501

that the size

the

VIDEO

240

180

SCREEN

to

display

and

adjust so

=

0.283,

R.

Y =

the

VGA

Vp-p ± 0.002.

B-DRIVE VR so

X =

nit.

position. distortion,

thirty

GRAPHICS MODE

follows.

is

mm

VR

0.298

0.283.

and

convergence

that

aging has been carried

minutes.

CENT MAX CENT CENT CENT

CENT MIN MIN MIN MAX

as

specified.

to

a non signal.

(attached

raster.

to

adjust

that

it

becomes almost white

approx. ±

to

31.5

kHz,

output

that

Y =

0.298

that

the luminance becomes

After

to

any 1 ch VR

0.05).

adjust

the

480

LINE. VIDEO

image rate. adjust

the

white

and

(fH

checking,

the

FOCUS

raster

balance

adjust

= 31.

the

to

3-5. BRIGHT CONTROLLABLE

CONFIRMATION

1. Input a signal of 480 LINE

white. 0.714 Vp-p).

2.

CONTRAST control

3. Confirm the variation controlling

1) Confirm the difference

2)

BRIGHT

maximum position click position

Confirm the difference of luminance signal on minimum position click position

..

....... maximum

of

luminance signal when

volume

is

as

of

as

compared with the centre

more than + 1 0 NIT.

as

compared with the centre

less than

(fH=31

luminance signal on

follows.

-10

kHz. entire-

NIT,

i

,r-

o

"

1

r

II-

)6

133

)V

D2

-15-

r_C_P_~_~1_4_04_:'S_"

-.II

SECTION 4

SAFETY RELATED ADJUSTMENT

(g)

8RV402, HV REGULATER. HV HOLD-DOWN AND BEAM LIMIT CIRCUIT CONFIRMATION

Cover the silicone

seal

and

cap

on RV402, and make paste together

printed

board.

.-

When replacing

~

on

the

o

BOARO················IC901.

DA

(OC·l)

BOARO ............ ·

1.

HV REGULATER CIRCUIT

1) Receive a signal

2)

Set the CONT and BRIGHT controls

(Cut·Off

3)

Connect a digital on

4)

Confirm

5)

If RV402.

2. HV.

3. BEAM

HOL~-~OWN

1)

Receive a signal

2)

Set the CONT and BRIGHT controls (Cut·Off

3)

Apply

(g)

voltage HOLO·OOWN raster

1) Receive a signal

2)

Adjust screen

CONT BRIGHT

3)

Connect a digital on 0 board.

4)

Confirm

5)

Apply

CD

becomes more than - 11.30V, confirm the BEAM·

LIMITER NOTE:

CD

Insert in seal cap

the

following

schematic

C409, C410, C412, C414, C415. C422. C424, T402

DY

..

IC101, IC301,

condition).

0 board.

the

step

4)

is

Condition).

an

external

of

P402

on

is less

disappears.

LIMITER

CONT and BRIGHT

luminance

control

control·

that

an

external

of

P402

on 0 board, and

circuit After with

components

diagram),

(Deflection

voltage

not

CIRCUIT

0 board, confirm

than

circuit

CIRCUIT CONFIRMATION

..........

the voltage is -

adjustment,

seal cap

with

make

IC902.

R41

(FBT).

of

multimeter

satisfied,

of

DC

of

to

......

multimeter

DC

operates and

IC401,

4,

R434, R435, T901,

0303,

CONFIRMATION

fH = 48kHz

is less

CONFIRMATION

fH = 48kHz.

voltage

7.40 V DC operates

fH = 48kHz.

become maximum centre

voltage

as

RTV

(silicone)

this

RV402,

Yoke)

to

than adjust

gradually

that

immediately

controls

100

to

2.80 gradually

when

raster

cover

follows.

(marked

confirmation. 0930,

R327,

to

(g)

6.48V them

to

the minimum

where

so

NIT.

CD

± 1

the

on 8

with

C408,

L406,

R388

minimum.

of

P402

~C.

with

minimum.

to

by

the

and

that

the

of

P402

.00 V DC

to

voltage

disappers.

RV402

as

follows.

WARNING: IF

RV

402

(sealed variable

is required,

control can

loVp

CIRCUIT CONFIRMATION I

When replacing confirmation.

D BOARD .... ·

1.

Turn

2. Remove

3.

Apply V

DC A) At

4.

5.

the operates is

drop

If

OVP circuit is

R914

federal require

is

to

be sealed so

be

made

to

following

.. · 0901,

OFF

the

POWER

P903

and

an

external

(SET UP THE CURRENT LIMITER TO

to

pin ®

of

moment

immediately

by

limiter

and

L906.

8

that

this

resistor.

components,

R922,

R923,

switch.

P904

connectors

DC

voltage

P903

on 0 board

(item

3),

confirm

and an

operation.

not

operate, check up

resistor)

after

no

further

0927. 0928.

of

less than

external

replacement

adjustment

perform

from

0 board.

for

two

the

OVP

DC

0901,

the

this

0929

216.00

0.2

second.

circuit

voltage

R913,

•

seal cap RTV

(KE-490,

CAP

-.

(3-710-578-01)

7-322-065-19)

-16-

~

iiii1

__

"';.'

....

J

'~a:-

t ...

~"iiIii'~'

!iOii'

~~

:;

I.!U' .•• r

.... " ....

\ ..•

i:

...

""

..•

..••

~T.'''''''''

~

~,

.1

i ~ :.

,...;

~;

,I.:

",'

I,. : .........

;!.

..

{.

::!'"

..

""

IU

•.

1

••

'"

.... : ... : •.

1: : II

Ii.

I'

""

.,'

' : ' , . ! I : • . .

,.

";!Jil;!ii~ii~m~

. CPD-1404S

1

-

digital multi meter

09:

515

PRO

regulated-de power supply

DO

digital

~I

b -

regulated·de power supply

DO

,)6

'33

)v

·-

Sony Multiscan CPD-1404S Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual