Jvc Jx-w9(e) User manual

JX-W9

BSE

MODEL

JX-W9

(E),

(EB),

(EK)

PAL

Contents

Safety

Precautions

........

0.0 cee

eee

ene

3

11.

Switch

Function

and

Operation

Mode

Table

....

26

“hy

Features!

occ

o5k

he

Rete

ee

id

eee

a

eed

eens

4

12.

ICs

and

Adjusting

Points

Locations

.....-.--+>

28

2.

Specifications.

2.0.0...

eee

ee

4

—

13.

WiringDiagram

...........

re

se

egehens

29

3.

Names

of

Parts

and

Their

Functions..........

5

14.

Exploded

View

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

Separate

Insertion

4.

Main

Parts

Locations

......

Fad

fit

h

Megatins

ace

7

15.

Electric

Parts

List...

0...

0.00

0

cee

eee

30

|

5.

Disassembly...

0.2

cc

ee

8

16..Mechanical

Parts

List...

0.2.0...

...22

202

eee

35

6.

Troubleshooting...

.......000

eee

e

eee

10

17.

Packing

Materials

and

Parts

Numbers

.....--.->+

36

7.

Adjustment

Procedures

..........0.000005

19

-

18.

Accessories

List

...........00%

biteh

eatulantaseneyte

37

8.

Block

Diagram

..

0.0.00...

ee

wee

es

23

19.

Schematic

Diagram

...........

Separate

Insertion

9.

Wipe

Gate

Logic

Diagram

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

24

20.

Printed

Circuit

Boards

........

.

Separate

Insertion

10.

Switching

Truth

Table..............0.....

25

A

No.

70053

JUN.

1987

JX-W9

|

Safety

Precautions

1.

The

design

of

this

product

contains

special

hardware

and

5.

Leakage

current

check

many

circuits

and

components

specially

for

safety

pur-

poses.

For

continued

protection,

no

changes

should

be

made

to

the

original

design

unless

authorized

in

writing

by

the

manufacturer.

Replacement

parts

must

be

identical

to

those

used

in

the

originat

circuits.

Service

should

be

performed

by

qualified

personnel

only.

_

Alterations

of

the

design

or

circuitry

of

the

product

should

not

be

made.

Any

design

alterations

or

additions

will

void

the

manufacturer’s

warranty

and

will

further

relieve

the

manufacturer

of

responsibility

for

personal

injury

or

property

damage

resulting

therefrom.

.

Many

electrical

and

mechanical

parts

in

the

product

have

special

safety-related

characteristics.

These

charac-

teristics

are

often

not

evident

from

visual

inspection

nor can

the

protection

afforded

by

them

necessarily

be

obtained

by

using

replacement

components

rated

for

higher

voltage,

wattage,

etc.

Replacement

parts

which

have

these

special

safety

characteristics

are

identified

in

the

parts

list

of

the

service

manual.

Electrical

components

having

such

features

are

identified

by

shading

on

the

schematics

and

by

(

A

)

on

the

parts

list

in

the

service

manual,

The

use

of

a

substitute

replacement

which

does

not

have

the

same

safety

characteristics

as

the

recom-

mended

replacement

part

shown

in

the

parts

list

in

the

service

manual

may

create

shock,

fire,

or

other

hazards.

_

The

leads

in

the

products

are

routed

and

dressed

with

ties,

clamps,

tubings,

barriers

and

the

like

to

be

se-

parated

from

live

parts,

high

temperature

parts,

Mov-

ing

parts

and/or

sharp

edges

for

the

prevention

of

electric

shock

and

fire

hazard.

When

service

is

required,

the

original

lead

routing

and

dress

should

be

observed,

and

it

should

be

confirmed

that

they

have

been

returned

to

normal,

after

re-as-

sembling.

(Electrical

shock

hazard

testing)

After

re-assembling

the

product,

always

perform

an

isolation

check

on

the

exposed

metal

parts

of

the

product

(antenna

terminals,

knobs,

metal

cabinet,

screw

heads,

headphone

jack,

control

shafts,

etc.)

to

be

sure

the

product

is

safe

to

operate

without

danger

of

electrical

shock.

Do

not

use

a

line

isolation

transformer

during

this

check,

@

Plug

the

AC

line

cord

directly

into

the

AC

outlet.

Using

a

“Leakage

Current

Tester",

measure

the

leakage

current

from

each

exposed

metal

part

of

the

cabinet,

particularly

any

exposed

metal

part

having

a

return

path

to

the

chassis,

to

a

known

good

earth

ground.

Any

leakage

current

must

not

exceed

0.5

mA

AC

(r.m.s.).

®

Alternate

check

method

Plug

the

AC

line

cord

directly

into

the

AC

outlet.

Use

an

AC

voltmeter

having

1,000

ohms

per

volt

or

more

sensitivity

in

the

following

manner.

Con-

nect

a

1500

2

10W

resistor

paralleled

by

a

0.15

uF

AC-type

capacitor

between

an

exposed

metal

part

and

a

known

good

earth

ground.

Measure

the

AC

voltage

across

the

resistor

with

the

AC

voltmeter.

Move

the

resistor

connection

to

each

exposed

metal

part,

particularly

any

exposed

metal

part

having

a

return

path

to

the

chassis,

and

measure

the

AC

voltage

across

the

resistor.

Now,

reverse

the

plug

in

the

AC

outlet

and

repeat

each

measurement.

Any

voltage

measured

must

not

exceed

0.75

V

AC(r.m.s.).

This

corresponds

to

0.5

mA

AC

(r.m.s.).

AC

VOLTMETER

ae

(Having

1000

ohms/volt,

or

more

sensitivity.)

Place

this

probe

15000

10W

on

each

exposed

metal

part.

Good

Earth

Ground

(No.

70053}

3

JX-W9

1.

Features

Source

input

picture

can

be

wiped

in

and

out

using

one

of 16

wipe

patterns

with

6

different

matte

background

colors.

Video

and

audio

can

be

faded

in

or

out

simultaneously

or

independently;

fade-to-black

and

fade-to-white

are

both

possible.

Wiping

and

fading

can

be

performed

manually

or

auto-

matically;

each

operation

variable

between

1

and

6

se-

conds.

Wiping

and

fading

can

be

used

together

or

separately.

Special

image

effects

(colorization,

painting,

black

and

white,

negative

and

defocus)

can

be

used

to

enhance

the

picture.

After

processing,

the

picture

can

be

wiped

with

the

source

input

(non-processed

picture).

2.

Specifications

Video

section

Signal

format

>

PAL

Input

terminals

:

BNC,

2

lines

(INPUT

1/2)

:

75

ohms,

unbalanced

:

BNC,

2

lines

(REC

OUT,

EFFECT

MONITOR)

Output

impedance

:

75-ohms,

unbalanced

Input

monitor

terminals:

BNC

(INPUT

1/2)

Output

impedance:

75

ohms,

unbalanced

Input

impedance

Output

terminals

Reference

input

level

:

1

Vp-p

Max.

allowable

input

:

1.5

Vp-p

Reference

output

level

:

1

Vp-p

(1

Vp-p

input,

75-ohm

loaded)

@

Two

input

sources

can

be

changed

over

automatically

using

the

wiping

or

fading

function

(AUTO

CROSS

INPUT).

®@

Two

pairs

of

input

terminals

are

provided,

with

source

monitor

output

terminals

for

direct

monitoring.

@

Monitor

selector

switch

is

provided

to

monitor

the

source

picture

and

the

processed

picture

on

a

single

monitor

TV.

,

@

Auxiliary

audio

input

terminals

and

Audio

Mix

knob

allow

mixing

with

external

sound

sources.

®@

Wipe

Reverse

switch

for

replacing

the

input

source

picture

with

the

matte

background

color

or

processed

picture.

®

Bypass

switch

is

provided

for

comparing

the

processed

picture

with

the

original

image.

Input

monitor

terminals:

RCA

jacks,

2

lines

(INPUT,

1/2,

stereo)

Output

impedance

:;1kohm

Reference

input

level

:~10

dBV

(316

mV:

1

kHz)

Reference

output

level

:-10

dBV

+2

dB

(316

mV

<2

cB:

at

reference

level

input)

:

+6

dBV

(2

V:

1

kHz,

1%

distortion)

:

20

—

20,000

Hz

(-1

+2

dB/1

kHz,

Max.

allowable

input

Frequency

response

0

dB)

Signal-to-noise

ratio

:

80

dB

Crosstalk

:

70

dB

(1

kHz)

Distortion

rate

:

0.1

%

or

less

(-10

dBV,

1

kHz)

General

Signal-to-noise

ratio

Crosstalk

Wipe

duration

Audio

section

Input

terminals

Input

impedance

AUX

input

terminals

Input

impedance

Output

terminals

Output

impedance

4

(No.

70053)

:

48

dB

or

more

:

48

dB

or

more

(4.43

MHz)

:

Approx.

1

to

6

seconds

:

RCA

jacks,

2

lines

(INPUT

1/2,

stereo)

:

47

kohms

:

RCA

jacks,

1

line

(stereo)

:

10

kohms

:

RCA

jacks,

2

lines

(REC

OUT,

EFFECT

MONITOR,

stereo)

:

1

kohm

Power

supply

Power

consumption

:

AC

220

VV,

50

Hz

(E),

(EB)

-

AC

240

VV,

50

Hz

(EK)

:

19

watts

(Power

on)

2

watts

(Power

off)

be,

(EB)

20

watts

(Power

on)

2

watts

(Power

off)

jie)

Dimensions

:

435(W)

x

82(H)

x

367(D)

mm

(including

knobs,

jacks

and

feet)

(17-3/16”

x

3-1/4"

x

14-1/2")

Weight

:

5.1

kg

(11.1

Ibs)

Design

and

specifications

subject

to

change

without

notice.

©

JX-W9

3.

Names

of

Parts

and

Their

Functions

Front

Panel

SSeS

eo

peel’

-=9

on

oa

ot

Coen

ea

Dee

maamoeoa)

F

@

POWER

switch

and

indicator

Press

to

turn

the

power

on;

the

indicator

lights.

Pressing

it

again

turns

the

power

off.

@

INPUT

select

switches

and

indicators

Press

to

select

the

input

source,

VCR-1

or

VCR-2;

the

selected

Input

indicator

lights.

@

WIPE

REVERSE

switch

and

indicator

__

When

wiping,

press

to

replace

the

input

source

picture

with

the

background

picture”;

when

this

switch

is

pres-

sed

to

on,

its

indicator

lights.

©

MODE

select

knob

Select

the

desired

operation,

(AUTO

CROSS

INPUT,

WIPE

or.EF

FECT),

with

this

knob.

®

MANUAL

control

knob

Used

to

perform

wiping

or

fading

manually.

Turning

counterclockwise

increases

the

background

color,

and

turning

clockwise

increases

the

input

source

picture.

@

MANUAL/AUTO

select

switch

and

indicators

Press

this

switch

to

select either

automatic

or

manual

—

wiping/fading.

The

selected

mode

indicator

lights.

@

SPEED

control

knob

Adjust

the

automatic

wiping/fading

speed

with

this

knob.

Turning

it

clockwise

increases

the

speed,

and

turning

counterclockwise

decreases

it.

(The

wiping/fading

speed

can

be

varied

between

1

and

6

seconds.)

@®

START

switch

and

indicator

Press

to

start

wiping

or

fading

automatically.

The

in-

dicator

blinks

when

the

switch

is

pressed,

and

goes

off

when

the

operation

is

finished.

©

COLOR

select

knob

;

Select

the

background

color

with

this

when

wiping

(6

colors

—

white,

black,

yellow,

green,

red

or

blue),

coloring

(4

colors

—

yellow,

green,

red

or

blue),

and

fading

(black

or

white).

@

COLORIZE

control

knobs

LEVEL:

Adjusts

the

color

intensity

(brightness)

of

the

section

to

be

colorized.

RANGE:

Adjusts

the

range

of

colorizing

section.

£

RUOKIIMX

—

MONI

OR

ered

FADER

i

peu

TE

rar

4s

2

beamed

@

PAINT

LEVEL

control

knob

Adjusts

the

color

brightness

of

any

area

being

painted.

@

BYPASS

switch

and

indicator

Press

to

deactivate

all

effects

(including

wipe

or

fade)

so

that

the

input

source

signal

is

sent

directly

to

the

output

terminal;

the

indicator

lights.

®

MONITOR

select

knob

Select

the

signal

to

be

output

to

the

monitor

TV

for

checking

or

monitoring

one

of

the

input

source

pictures,

or

the

processed

picture.

(N.B.:

Monitor

TV

must

be

connected

to

the

EFFECT

MONITOR

output

terminals.)

®.

AUDIO

MIX

knob

Balances

the

sound

from

the

input

source

with

the

sound

from

external

audio

source

equipment

connected

to

the

AUX

input

terminals

on

the

rear

panel.

®

EFFECT

select

switches

To

select

the

desired

effect

from

DEFOCUS,

NE-

GATIVE,

B/W,

COLORIZE

and

PAINT.

@

FADER

select

switches

To

select

the

fading

source

with

the

AUDIO

only

switch,

the

VIDEO

only

switch,

or

both.

@

WIPE

PATTERN

select

switches

Select

from

among

5

different

wiping

patterns

with

these

switches.

Except

for

the

circle,

the

other

4

pat-

terns

can

be

used

in

any

combination.

,

®

Source

status

indicator

(IN/OUT)

The

IN

indicator

lights

when

the

input

source

picture

is

in

the

“in”

position

on

the

screen.

The

OUT

indicator

lights

when

the

input

source

picture

is

in

the

“out’’

position

and

the

background

picture”

is

in

the

“in”

position.

*This

shows

the

picture

without

a

source

input

picture,

that

is,

the

matte

background

color,

fade-out

picture,

or

processed

picture.

(No.

70053)

5

JX-W9

Rear

Panel

o

Foor

te

OF

1G

oe

|

:

@

©

bE

ind

MAMUFACTURED

657

VICTOR

COM

PANY

OF

GAPAN.LTD.

TOKYO.

(oy

JAPAN.

SADE

J

JAPAN

@

INPUT

terminals

(VCR-1/VCR-2)

Connect

the

playback

VCRs,

etc.

to

these

terminals.

The

upper

terminals

correspond

to

the

INPUT-1

button

on

the

front

panel,

and

the

lower

terminals

to

the

IN-

PUT-2

button.

@

INPUT

MONITOR

output

terminals

(VCR-1/VCR-2)

These

terminals

are

used

to

monitor

the

input

source

from

the

INPUT

terminals

directly.

The

upper

terminals

are

for

INPUT-1

source,

and

the

lower

terminals

for

INPUT-2

source.

®

AUX

IN

terminals

Connect

external

audio

equipment

to

these

terminals,

for

mixing

or

replacing

the

audio

signal

of

the

input

sources

with

the

outboard

audio

source.

6

(No.

70053)

WARNING

AVIS

|

RISQUE

DE

CHOC

ELECTRIQUE

-

NE

PAS

OUVRIR:

[INPUT

MONITOR-2

|

a

_

a

Ne

O°.

:

a

©

9g:

Y

9!

VIDEO

AUDIO

V¥IOEO

AUDIO

os

:

SHOCK

HAZARD

-

DO

NOT

OPEN

SPEGAL

EFFECTS

GENERATOR

aE,

eae

@

REC

OUT

terminals

Connect

the

recording

VCR

to

these

terminals.

@

EFFECT

MONITOR

output

terminals

Connect

the

monitor

TV

to

these

terminals.

When.

the

MONITOR

OUT

selector

is

set

to

EF

FECT,

the

effected

picture

can

be

monitored,

and

when

the

INPUT

1

or

2

is

selected,

the

input

source

picture

can

be

monitored

directly.

JX-W9

4.

Main

Parts

Locations

Top

Cover

Reinforcement

Plate

Ni

W

tl

il

Front

PCB

(3)

Ass’y

Front

PCB

(1)

Ass’y

Front

PCB

(2)

Ass‘y

Front

Panel

Wipe

PCB

Ass‘y

Sub

Frame

Power

Switch

Main

PCB

Ass'y

Chassis

Power

Transformer

A

Cord

Stopper

A,

Power

Cord

A

Rear

Panel

Sub

PCB

Ass’y

A

‘

Safety

Parts

(No.

70053)

7

JX-W9

|

5,

Disassembly

8

(No.

70053)

Note:

For

connector

locations,

refer

to

page

30.

Removing

the

Top

Cover

©

1.

Remove

five

screws

@)

on

the

rear

panel

retaining

the

top

cover,

and

four

screws

@®

on

the

side.

2.

Remove

the

top

cover

by

pulling

it

backward,

Removing

the

Bottom

Cover

@

1.

Remove

ten

screws

()

attaching

the

bottom

cover

to

chassis

®

,

to

remove

the

bottom

cover.

Removing

the

Front

Panel

Ass’'y

®

1.

Remove

the

top

cover

according

to

the

above

procedure.

2.

Pull

out

the

three

knobs

A

,

knob

C

@

and

five’

knobs

B

@)

toward’you.

3.

Remove

four

screws

()

attaching

the

upper

section

of

the

front

panel

to

the

sub

frame

@

.

4.

Remove

three

screws

(3)

attaching

the

lower

section

of

the

front

panel

to

the

sub

frame.

5.

Pull

out

the

front

panel

forward

to

remove

it.

Removing

the

Reinforcement

Plate

1.

Remove

the

top

cover

according

the

above

procedure.

2.

Remove

two

screws

(5)

on

both

ends

of

the

reinforce-

ment

plate

and

pull

it

upward.

Removing

the

Rear

Panel

1.

After

removing

the

top

cover

(@)

,

remove

five

screws

@

retaining

the

rear

panel

and

chassis.

2.

Remove

thirteen

screws

retaining

the

jacks

and

BNC

jacks

on

the

rear

panel.

3.

Pull

out

the

rear

panel

toward

you.

‘Removing

the

Wipe

PCB

Ass’y

1.

Remove

the

top

cover

@

,

reinforcement

plate

(4

and

rear

panel

according

the

above

procedures.

-

2.

Hold

the

upper

ends

of

four

holders

B

@0

at

the

corners

of

the

Wipe

PCB

with

pliers

to

unlock

it,

and

lift

it

up

to

remove

it.

JX-W9

Removing

the

Sub

PCB

Ass’y

@)

1.

Remove

the

Wipe

PCB

ass’y

(9

according

to

the

above

procedure.

Remove

the

screw

@

and

then

remove

the

power

supply

IC.

.

Remove

the

connectors

CN40

and

45.

.

Remove

the

two

screws

@6)

and

remove

the

power

switch.

.

Remove

the

wire

from

the

wire

clamper.

.

Hold

the

upper

ends

of

the

eight

holders

A

@3)

with

pliers

to

unlock

it,

and

lift

it

up

to

remove

it.

N

ooh

W

Removing

the

Sub

Frame

Ass’y

(2

and

Main

PCB

Ass’y

1.

Remove

the

top

cover

(@

,

front

panel

ass’y

@

,

rear

panel

@@),

reinforcement

plate

@

,

sub

PCB

ass’y

Qi),

and

Wipe

PCB

ass’y

(9)

according

to

the

above

pro-

cedures.

2.

Remove

the

washers

and

nuts

©)

of

the

AUDIO

MIX

knob

and

MONITOR

select

knob,

and

remove

the

front

PCB

(3)

ass’y

from

the

sub

frame.

3,

Remove

two

screws

@)

retaining

the

both

sides

of

the

sub

frame

and

chassis

©

.

4.

Hold

the

upper

ends

of

the

ten

holders

retaining

the

main

PCB

with

pliers

to

unlock

it,

then

lift

up

the

PCB

and

remove

the

sub

frame

ass’y

(2

and

main

PCB

ass’y

@

from

chassis

without

separating

them.

5.

Remove

washers

and

nuts

(A)

for

five

knobs

and

two

switches

from

the

sub

frame,

and

remove

the

sub

frame

ass'y

from

the

main

PCB

ass’y.

(No.

70053)

9°

JX-W9

6.

Troubleshooting

Notes:

1.

Input

signal:

Video:

Full-field

color

bar

(white

100

%),

1.0

Vp-p

Audio:

1

kHz,

-10

dBV

sine

wave

2.

NO:

When

normal

voltage

and

waveforms

are

not

present

YES:

Normal

voltages,

etc.

3.

Refer

to

the

“ICs

and

Adjusting

Points

Locations”

on

page

29.

4.

Before

starting

repairs,

check

each

adjustment

the

timing

pulse

in

“Adjustment

Procedure”

(on

page

19.)

5.

For

adjustment,

refer

to

the

‘Adjustment

Procedures’’.

Check

point

Normal

voltage

and

waveforms

AC

15.0

V

Adjusting

point

and

defect

NO:

©Power

cord

or

power

transformer

is

shorted,

@

Power

switch

or

power

transformer

connector,

etc.

is

defective.

:

eCheck

@.

1.

No

picture

nor

sound,

Secondary

side

of

power

transformer

©

1C17

or

D20

is

defective.

@

Lead

wire

or

connector,

etc.

of

IC17

is

defective.

:

®Check

@.

DC

12.0

V

(11.5

—

12.5

V)

Power

supply

of

main

circuit

Power

line

of

each

DC115-125V

section

¥

C232

S

®

Hot

sides

of

R1,

R8

(75

ohms)

NO:

®

Video

input

terminals

are

defective.

Check

the

voltage

and

waveforms

in

the

vicinity

of

Q1

or

G2.

2.

No

output

is

present

at

any

output

terminals.

Check

IN/OUT

of

.

No

output

is

Same

waveform

as

above.

NO:

¢1!C27

is

defective.

present

at

video

1C27.

Input-1

ON:

13

goes

H

e

Connector

CN25-1,

CN25-2

and

lead

jacks

of

MONI-

IN

>

OUT

Gate

Input-2

ON:

5

goes

H

wires

are

defective.

TOR

and

REC

pint

pin2

pin13

1C27

1C70

(Refer

to

“Switching

Truth

Table’’.)

OUT

terminals.

Or

their

levels

are

abnormal.

(With

BYPASS

on

and

off)

4

pin3

pind

13

>

12

:

@

Check

©.

pin5

>

pini3

(Connected

to

CN25)

iC16

1

(AN608)

eCheck

1C11

input

pins

(pins

11,

10),

output

pins

(pins

1,

2)

and

gate

pins

(pins

12,

13).

©

Check

each

voltage

and

waveform

at

Q65,

1C16,

O66

and

O67.

@

Check

1C12

input

(pin

10),

output

(pin

11)

and

gate

(pin

12).

Adjust

VR35.

NO:

eCheck

Q13.

e

Connector

CN17-1

or

lead

wire

is

.

Emitter

of

Q55

.

No

output

is

present

at

video

jacks

on

MONI-

defective.

TOR

and

REC

@

Check

the

voltage

waveform

of

Q55.

OUT

terminals,

:

®Check

@.

Or

their

levels

are

abnormal.

(Only

when

BYPASS

off}

Emitter

of

Q62

@

Check

each

voltage

and

waveform

of

Q62,

!C15.

@

Check

!C9

in/out

pins

1,

2

and

gate

13.

:

eCheck

@.

0.98

V

Adjust

VR33

Same

waveform

as

(8)

when

BYPASS

is

set

to

OFF.

1C11

pins

1,2

—

same

as

@).

Base

of

Q65

#1C11,1C10

is

defective.

e

Connector

CN29-2

is

defective,

or

check

peripheral

components,

etc.

pini3—>H

YES:

eCheck

Q65,

C138

and

its

peripheral

1C11

{C34

components,

etc.

pin13—>

:

(Connected

to

CN29)

10

(No.

70053)

JX-W9

Check

point

Normai

voltage

and

waveforms

Adjusting

point

and

defect

Icg

When

Wipe

Manual

knob

is

set

@

Check

the

“Wipe

Gate

Logic

Diagram”.

IN

OUT

Gate

to

SOURCE,

gate

13

is

H.

yee:

©

{C9

is

defective.

pin2

pint

pin13

®

When

Wipe

Manual

knob

is

set

10pin

11

12

to

MATTE,

gate

12

is

H.

5.

When

wipe

@

|

130

5

:

@Check

of

BPF1.

operation

is

set

——

@

Check

voltages

of

O5.

to

Source

side

it

i

:

eCheck

@.

(IN),

chroma

‘

:

output

is

not

present,

or

level

is

abnormal.

@

|

1C30

3

:

@C98

is

misadjusted.

e@

{C30

26

HD

PULSE

is

defective.

@

(C28

is

defective.

:

@Check

@.

Emitter

of

Q13

,

:

eCheck

the

vicinity

of

O83,

Q11,

Q13.

:

@Check

connector

CN17-1,

lead

wire,

O55,

Q56.

@

Check

clamp

circuit

consisting

of

1C9

in/out

pins

3,

4

and

gate

5,

Adjust

VR2

(chroma)

.

When

wipe

Emitter

of

08

:

@Check

of

DL-1

operation

is

set

:

@

Check

voltage

and

waveforms

in

the

to

Source

(iN)

vicinity

of

Q6,

A7,

8.

side,

luminance

:

eCheck

@.

level

is

abnormal.

Weg!

_

Emitter

of

Q13

Same

as

@.

:

@Check

voltage

and

wavelgnn

of

013.

:

@

Check

connector

CN17

and

lead

wires.

Check

Q55,

Q56.

.

Background

1C28

5,

20

:

YO:

@

Check

1C30

19,

22.

(matte)

color

is

:

eCheck

@.

not

present,

or

.

:

;

0.55

V

-—_

7"

:

;

level

is

abnormal.

4,43

MHz

SC

Input

ul

Mode:

Wipe

1C31

8

(G)

NO:

eCheck

O10.

Color:

Y~

B

4

(R)

e

Check

D1,

D2,

D203,

D204.

Wipe

Operation

2

(B)

aur

ie

*

Check

$19

(COLOR

SW).

Knob:

Matte

wt

YES:

eCheck

(8.

: ;

1H

Outputs

at

each

of

$19

*For

abnormal

(Color

SW)

hue

refer

to

—-

;

item

11

qnd

12.

Pin.8

Pin4

|

Pin2

*The

above

waveform

is

present

at

the

points

marked

0.

[e)

JO}

jo!

(No.

70053)

11

JX-W9

Check

point

Normal

voltage

and

waveforms

Adjusting

point

and

defect

1C28

1

(B-Y)

Polarity

(+)

®

Check

Q80

~

O82.

24

(R-Y)

®

Check

Voltage

and

waveforms

in

the

ba

|

vicinity

of

15

~

Q21,

@

V10

is

incorrectly

adjusted.

:

@Check

@.

Polarity

(-)

Outputs

at

each

of

S19

(Color

SW)

(Voltage

’’a’’)

(+)

110

mV

(-)

470

mV

(+)

600

mV

(~)

100

mV

C39

(1C41

1)

NO:

eCheck

voltages

and

waveforms

at

each

of

[C28.

Carrier

balance

(VR6,

VR8)

is

incor-

rectly

adjusted.

@

Check

voltages

and

waveforms

in

the

vicinity

of

Q25.

Check

item

10~

13

in

‘‘Adjustment

Pro-

cedures’.

:

@Check

@.

Levels

at

each

of

S19

(Color

SW).

(Voltage

‘’a’”’)

Emitter

of

Q35

Emitter

of

Q14

@

Check

1C41

13

and

gate

no.

37

ac-

cording

to

“Switching

truth

table”.

e

Check

Q22,

Q35.and

Q34.

@

Check

1C53

12

and

gate

no.

40

ac-

cording

to

“Switching

truth

table’.

@

Check

voltage

and

waveform

of

Q19,

asi.

8.

Chroma

level

of

Effect

side

is

abnormal,

@

Re-check

VR3in

@

.

(Source

side

is

:

@Check

@.

normal.)

Mode:

Effect

@

Check

voltage

and

waveform

of

Q22,

Color:

Y~B

White

100

%

Q35.

Effect

mode:

level

@

Check

voltage

and

waveform

of

IC

41

Colorize

0.22

V

in/out

pins

9

and

8.

Wipe

operation:

Check

gate

no.

36,

with

the

“Switching

Matte

Truth

Table’.

Emitter

of

Q35

YES:

eCheck

the

clamp

circuit

with

142

gate

5,

input/output

pins

3,

4.

@

Check

voltages

and

waveforms

of

Q60,

Q61.

e

Check

connecter

CN12-1

and

lead

wires.

In

COLORIZE

Emitter

of

Q35

White

100

%

level

@With

the

“Switching

Truth

Table”,

check

gate

39.

9.

Luminance

level

of

Effect

side

is

abnormal.

0.22

V

©

Check

the

vicinity

of

Q34.

(Source

signal

:

@Check

@).

is

normal.)

White

100

%

level

Mode:

Effect

In

DEFOCUS

NO:

eCheck

voltages

and

waveforms

in

the

Color:

Y

~B

Wipe

operation:

Matte

12

(No.

70053)

Emitter

of

Q31

0.60

V

Adjust

VR15.

YES:

vicinity

of

Q18,

Q31.

@Check

@.

Check

point

Normal

voltage

and

waveforms

JX-W9

Adjusting

point

and

defect

10.Negative/

positive

opera-

tion

is

incorrect.

Mode:

Effect

Color;

Y~

B

Wipe

Operation:

Matte

(Source

signal

_

is

normal.)

@

Emitter

of

Q35

in

PAINT

Emitter

of

Q32

Emitter

of

Q35

IC39

pin13

11

When

NEGATIVE

is

OFF,

Emitter

of

Q60

COLORIZE

ON

for

Effect.

Emitter

of

Q62

0.31

V

*

Set

the

Color

to

W

or

BK.

White

100

%

level

0.90

Vj.

cs

LEVEL:

MAX

wf

LEVEL:

MIN

|

zi

—

NO:

@

Check

the

voltages

and

waveforms

of

Q34,

1C53

input/output

pins

2,1.

@

With

the

“Switching

Truth

Table’,

check

gate

41

(pin

13).

:

@Check

@).

©

Check

voltages

and

waveforms

of

all

sections

of

O26

~

29.

@

Check

clamp

circuit

with

1C48

input/

output

pins

4,

3,and

gate

5.

:

@Check

@.

®

Readjust

VR23.

Set

IC39

13

to

3.5

V.

Incorrectly

adjusted

>

Check

@).

Check

the

output

of

Q32,

1C39

pins

6,

5,

and

4.

:

@Check

@.

Pin13:

DC

3.5

V

11:

DC

5.1

V

(low)

~

4.1

V

(high)

LEVEL:

MAX

se

sofas

LEVEL:

MIN

Adjust

VR24,

*

Set

the

COLOR

to

W

or

BK.

White

100

%

level

0.31

V

Adjust

VR16

~

19

@

Check

input/output

voltages

of

3-pin

regulator

IC18,

@

Check

voltages

and

waveforms

of

all

sections

of

1C36,

Q30.

LEVEL

control

knob

VR22

is

defective.

©

Check

voltages

and

waveforms

of

all

sections

of

O33

~

35.

©

Check

voltages

and

waveforms

of

IC53

in/out

pins

9,

8.

With

the

“Switching

Truth

Table’’,

check

gate

No.

42

(pin

6).

:

@Check

@.

ary

®

Check

all

voltages

and

waveforms

of

1C72,

Q36,

Q37.

@

Check

the

clamp

circuit

consisting

of

1C42

in/out

pins

3,

4

and

gate

5.

@

Check

the

voltage

at

|C42

in/out

pins

10

and

11.

©

According

to

the

“Switching

Truth

Table'’,

check

gate

No.

45

(pin

12).

:

@Check

@).

Set-up

voltage

Adjust

set-up

voltage

with

VR30.

©

Check

clamp

circuit

consisting

of

IC9

in/out

pins

8,

9

and

gate

6.

©

Check

all

voltages

and

waveforms

of

Q59,

61.

Check

voltages

and

waveforms

of

ICQ

in/out

pins

10

and

11,

and

check

gate

no.

47

(pin

12)

according

to

“Switching

Truth

Table’.

(No.

70053)

13

JX-W9

11.

Level,

phase

of

background

color

is

incorrectly

ad-

adjusted.

.Colerization

operation

is

abnormal.

.

Painting

operation

is

abnormal

Mode:

Effect

Effect:

Paint

.

B/W

operation

is

abnormal

Mode:

Effect

Effect:

BAW

Check

point

When

NEGATIVE

ON,

Emitter

of

Q60

Emitter

of

Q62

Video

terminal

of

REC

OUT

1C37

10

4

(uPC

319

C)

1C37

pin?

pin.12

(uPC319

C)

1C39

pin7

(MB40576)

1C39

pins

3,

4,5

1C41

pin5

Normal

voltage

and

waveforms

0.70

V

Set-up

voltage

OV

Adjust

VR16

~

19.

Adjusting

point

and

defect

@

Check

ail

voltages

and

waveforms

of

1€72,

Q36

and

37.

@

Check

clamp

circuit

consisting

of

1C42

in/out

pins

3,

4

and

gate

5.

@

Check

voltages

of

1C42

in/out

pins

1,

2,

and

check

gate

No.

44

(pin

13)

according

to

“Switching

Truth

Table”.

:

@Check

@).

e

Same

as

@).

YL:

167°

G:

241°

R:

104°

B:

347°.

Measure

with

vectorscope.

Variable

by

controlling

LEVEL

and

RANGE

VRs

17.73447

MHz

37V

0.2

V

-L-_st

==

ov

Variable

by

controlling

the

LEVEL

VR.

15.DEFOCUS

operation

is

abnormal

Mode:

Effect

Effect:

Defocus

14

(No.

70053)

1CS3

13

ON:

11.5V

OFF:

O4V

e

Re-adjust

the

following

according

to

item

in

“Adjustment

Procedures’

(on

10~13

page

21):

VR5

—

Phase

of

background

color

VR6,

8

—

Carrier

balance

VR7

—

Set-up

VRQ

—

R-Y

level

VR11

—

Level

of

background

color

@

Check

item

7.

@

Check

voltages

and

waveforms

of

Q26

~

29.

@

Check

clamp

circuit

consisting

of

C48

in/out

pins

3,

4

and

gate

5.

:

@Check

that

the

{C37

pins

9,5

are

varied

with

the

LEVEL

and

RANGE

knobs.

(Variable

3.4

V

~

5.0

V)

eCheck

@

.

®

Check

voltages

and

waveforms

in

the

vicinity

of

1C37.

:

@

Check

gate

No,

36

according

to

“Switching

Truth

Table’.

®

Check

voltages

and

waveforms

in

the

vicinity

of

[C38.

‘

e

1C38,

crystal

oscillator

X-2

is

defective.

®Check

68)

e

Check

voltages

and

waveforms

in

the

vicinity

of

|C39.

Check

@

and

@.

Check

@.

®

According

to

the

“Switching

Truth

Table",

Check

No.

38

gate.

:

@Check

1C41

in/out

pins

3

and

4.

®

According

to

“Switching

Truth

Table’,

check

gate

No.

41.

:

@Check

@.

Symptom

a

Check

point

Normal

voltage

and

waveforms

—

:

JX-W9

Adjusting

point

and

defect

16.

Video

fade-out

is

abnorma!

Fade:

Video

Mode:

Wipe

[C59

7

{uPC358

DC1.3V~10.7V

@

“Manual”

knob

operation

e

“Auto”

in

and

out

operation

(1C57

1

is

2.0

V

~

10.6

V)

Cc)

@

Check

[C55

in/out

pins

8

and

9

(for

Manual},

pins

10,

11

(for

Auto).

@

Check

voitage

of

each

of

(C59,

@

Check

connector

CN8-5,

6,

7

and

(manual

knob}

lead

wires.

:

@Check

@.

@|

REC

OUT

Video

terminal

10

mV

or

less

Black

fade

White

fade

10

mV

or

less

ma

Adjust

VR34

so

that

the

signal

level

is

minimum.

©

Check

voltages

and

waveforms

in

the

vicinity

of

[C15.

®@

Check

output

voltage

of

IC57

1.

@

Check

connector

CN29-1

and

lead

wires.

@

Adjust

black

fade

level

with

VR31.

@

Adjust

white

fade

level

with

VR32.

17.|In

Wipe

opera-

tions,

some

patterns

mal-

function

Mode:

Wipe

Manual/

Auto:

Manual

*

Final

check

should

be

done

with

monitor

TV

using

Crosshatch

pattern,

etc.

Refer

to

“"Adiustment

Procedure”.

*

Final

check

should

be

done

with

monitor

TV

using

Crosshatch

pattern,

etc.

Refer

to

“Adjustment

Procedure’,

®

or

pattern

is

possible

Emitter

o

Emitter

o

mS

oor

pattern

is

possible

[

oan

not

Approx.

6.7

V

eae)

f

47

-

H

SYNC

|

Adjust

linearity

with

VR59

ie.

@

Check

horizontal

sync

signal

from

connector

CN

18-3

to

Q46

base.

:

eCheck

@.

f

QS1

Won:

19V

[HON:

1.9V

ea)

el

Adjust

level

with

VR60,

Adjust

balance

between

both

waves

with

VR62.

Approx.

|

eg

eae

5.5V

V

SYNC

not

NO:

YES:

@

Check

IC5

in/out

pins

10,

11

pins

1,2

and

pins

3,

4.

®

According

to

the

“Switching

Truth

Table”,

check

gate

No.

55

(pin

12),

No.

57

(pin

13)

and

No.

58

(pin

5).

@

Check

voltages

and

waveforms

of

Q50.

@

Check

the

vertical

sync

signal

from

connector

CN18-2

to

Q39

base.

eCheck

@.

|

Emitter

of

Q40

®

Emitter

of

Q84

'@|

=O

pattern

is

not

possible

{C2

10

(TC4538BP}

@

|

Emitter

of

Q52

Emitter

of

Q51

|

Adjust

tinearity

with

VR51.

POON:

vl

|,

fad

ON:

VY

sy

Adjust

fevel

with

VR50.

Adjust

balance

between

both

waves

with

VR55.

12.0

“ae

ae

me

H

SYNC

Adjust

VR63

so

that

the

duty

ratio

becomes

50

%,

NO:

©

Check

[C3

in/out

pins

9,8

and

IC4

in/out

pins

8,9,

11

and

10.

®

According

to

“Switching

Truth

Table’,

check

gate

No,

50

(pin

6),

No.

53

(pin

6)

and

No,

54

(pin

12).

®@

Check

voltages

and

waveforms

of

044,

®

Check

the

horizontal

sync

signal

from

connector

CN18-3

to

!C2

12.

Check

the

vicinity

of

1C2.

:

®Check

@.

Approx.

3.1V

ia

Adjust

the

linearity

with

VR64

@

Check

the

voltages

and

waveforms

in

the

vicinity

of

Q52.

:

@Check

@.

Approx.

2.0V

|

Os

Adjust

VR65

so

that

the

duty

ratio

becomes

5

%.

@

Check

IC5

in/out

pins

8,

9

and

1,

2.

®

According

to

“Switching

Truth

Table”,

check

gate

No.

57

(pin

13).

®

Check

vaitages

and

waveforms

of

Q50,

051.

(No,

70053)

15

JX-W9

Symptom

Check

point

Normal

voltage

and

waveforms

Adjusting

point

and

defect

18.

All

wipe

patterns

are

abnormal

Mode:

Wipe

Manaul/Auto:

Manual

16

(No.

70053)

ma

pattern

is

not

possible

IC2

pin6

Emitter

of

045

Emitter

of

084

EO

pattern

is

not

possible

Emitter

of

Q49

Emitter

of

042

65)

|

Emitter

of

084

vzovt

|

Lf

V

SYNC

Adjust

VR56

so

that

the

duty

|

ratio

becomes

50

%.

Approx.

apy

lo

NZ Ne

Adjust

linearity

with

VR57.

Adjust

level

with

VR58.

Approx.

44V

H

SYNC

Adjust

linearity

with

VR61.

@

Check

the

vertical

sync

signal

from

connector

CN18-2

to

{C2

5.

®

Check

the

vicinity

of

I1C2.

:

@Check

6).

@

Check

voltages

and

waveforms

in

the

vicinity

of

O45.

:

@Check

@.

@

Check

IC3

in/out

pins

1,

2

and

{C4

in/out

pins

8,

9.

According

to

‘Switching

Truth

Tabie’’,

check

gate

No.

51

(pin

13),

No.

53

(pin

6}.

@

Check

voltages

and

waveforms

of

044,

084.

’

eCheck

@.

@

Check

voltages

and

waveforms

in

the

vicinity

of

Q48,

O49.

:

@Check

@.

Approx.

1.6V

Adjust

linearity

with

VR52,

Adjust

balance

with

VR53.

Adjust

level

with

VR54.

1C8

12

{uPC319

C)

tot

1C6

4

(TC4001BP)

iC8

7

(uPC319

C)

68)

|

Select

[J]

pattern

Select

™

pattern

1H-SYNC

i

wav]

|

LI

I

Variable

with

Manual

knob

Check

@.

@

Check

voltages

and

waveforms

in

the

vicinity

of

O41,

042.

:

@Check

@.

@

Check

1C3

in/out

pins

11, 10,

and

1C4

pins

8,

9.

e

According

to

“Switching

Truth

Table’

check

gate

No.

52

(pin

12),

No,

53

(pin

6).

®

Check

voltages

and

waveforms

of

043, 044,

084.

@

Check

the

wipe

control

voltage

of

connector

CN22

2.

*DC20V-109V

eNO:

Check

@.

e

Check

voltages

and

waveforms

in

the

vicinity

of

1C8.

:

@Check

6).

I

Same

waveform

as

above.

@

Check

voltage

from

connector

CN42-1

or

CN19-3

to

IC6

5.

*L

(0.7

V)

isO.K.

NO:

Check

H

gate

according

to

“Switching

Truth

Table’.

:

@Check

“Wipe

Gate

Logic

Diagram”.

1V-SYNC

weyE

Pt

|.

Variable

with

Manual

knob

@

Check

voltage

from

connector

CN42-2

or

CN19-2

to

C6

9.

*DpC1.2V7108V

@NO:

Check

@.

@

Check

voltages

and

waveforms

in

the

vicinity

of

1C8.

:

@Check

@.

Check

point

Normal

voltage

and

waveforms

JX-W9

Adjusting

point

and

defect

C6

10

(TC4001BP)

19.

Auto

Cross

Input

mal-

function.

®

Auto

wipe

does

not

function.

Mode:

Auto

Cross

Input

Wipe

pattern:

Select

any

one

@\|n

the

Auto

Cross

Input

mode,

inputs

1/2

are

not

changed.

hase

2

Press

START.

(TC4013BP)

1C59

Press

START.

(uwPC358

C})

—|—

I1C56

Press

START.

(uPC358

C)

IC56

pin7

START

ON

Same

waveform

as

above.

@

Check

voitage

from

connector

CN42-2

or

CN19-2

to

IC6

9.

*L

(0.7

V)

is

O.K.

NO:

Check

V

gate

according

to

“Switching

Truth

Table’.

:

@Check

“Wipe

Gate

Logic

Diagram”.

H

level

goes

low

NO:

YES:

@

Check

whether

|C69

pins

5,

6,

4

are

H

er

not,

@

Check

whether

|C70.pin

3

goes

H

by

switching

ON,

Check

@

.

DC

10,9

V

is

changed

to

DC1.3

V,

NO:

then

DC

10.9

V

resumes,

|

YES:

@

Check

that

Q100

base

and

collector

are

11.5

V.

@

Check

that

[C58

2

goes

high

from

low.

eCheck

@.

1C59

1

O2V

NO:

TP20

-

YES:

1C56

pint

START

ON

*

Adjust

VR44

so

that

the

voltage

of

TP21

is

0.2

V

lower

than

the

max.

voltage

of

TP20.

ICB9

1

TP20

1C56

pin7

I

START

ON

*

Adjust

VR43

so

that

the

voltage

of

TP22

is

0.2

V

higher

than

the

max.

voltage

of

TP20.

-

i

©

Check

voltages

of

|C56

pins

1,

2,

3.

©

Check

@.

@

Check

IC56

pins

5,

6

and

7.

:

@Check

@.

ICB7

1

START

ON

(TAS458P)

DC

10.9

V

is

lawered

toDC1.3V,

then

DC

10.9

V

resumes,

@

Check

voltage

changes

of

IC55

in/out

pins

10,11.

Check

that.

gate

12

isH.

@

Check

voltage

changes

of

C59

pins

5,

6,

and

7,

and

voltage

change

of

|C57

3.

eCheck

that

0112

base

is

H.

IC68

pin3

1C70

13

@

Check

voltages

and

waveforms

of

iC64

pins

4,5,

and

6,

and

in

the

vicinity

of

IC66.

,

e

Check

I|-C68

pins

1,

2,

3

and

|C67

pins

11,12,

13,

:

@Check

8.

@

Check

that

IC69

13

is

H.

(Auto

Cross

Input:

ON)

Check

voltages

in

the

vicinity

of

IC70.

:

eCheck

connector

CN25-1,

2

and

lead

wires,

eCheck

that

[C27

gate

pins

13,

5

are

inverted

to

H/L

respectively.

(No.

70053)

17

IX-W9

Symptom

.

Auto

Wipe

operation

is

abnormal

Mode:

Wipe

Manual/Auto:

Auto

Check

point

Normal

voltage

and

waveforms

Adjusting

point

and

defect

*

Check

items

on

@

to

@.

*

Check

that

1C69

pins

9,

12

are

low,

and

output

pins

10,

11

are

always

low,

.Speed

control

is

abnormal

.

Switch

operation

is

abnormal

.No

audio

output

at

any

output

terminal,

.No

audio

output

at

EFFECT

MON.

and

REC

OUT

terminals

(audio

out

terminals)

(With

BYPASS

both

ON

and

OFF)

.No

audie

output

at

audio

termi-

nals

of

Effect

Monitor

and

Rec

Out

terminals

(When

Bypass

is

OFF)

|

.Audio

fader

operation

is

abnormal

Fade:

Audio

Manual/Auto:

Manual

18

(No.

70053)

Impedance

between

Apprex,

500

kohms

to

0

kohm

NO:

eVR42

is

defective.

{C58

2

and

(Power

OFF)

e

Check

the

peripheral

pattern.

VR42

center

pin.

*

Check

each

switch

according

to

"Switching

True

Table”

and

check

voltages

of

each

part

(connector

pin)

the

points

which

are

incorrect,

*

Check

by

“Switch

function

and

operation

mode

table’’.

@

Input

1:

Check

connector

CN35

@

Input

2:

Check

connector

CN35

@

AUX

IN:

Check

connector

CN3

e

Check

voltages

and

waveforms

of

all

transistor.

Emitter

of

Q70,

1070,

Q71,

1071,

Q72,

1072.

(Channel

to

which

signal

is

input)

Input:

-10.0

dB

Vrms

~9.8

dBVRus

IC25

1

(Rech)

@

Check

voltages

and

waveforms

in

the

1C24

7

(Lech)

© :

vicinity

of

1C25,

24.

:

@

Check

connectors

CN32

and

30.

-10

dBVrRus

@

Check

voltages

and

waveforms

in

the

vicinity

of

1C26.

e

Check

connector

CN9-2,

and

balance

VR.

e

Check

that

IC26

1

(fade

control

pin)

is

approx.1.0V.

:

@Check

voltages

and

waveforms

of

!C21

in/out

pins

8,9

(Reh)

and

1C23

in/out

pins

11,

10

(Lch).

@

Check

gate

No.

12

(pin

6),

No.

10

(pin

12)

according

to

“Switching

Truth

Table’.

1C26

5

(R)

-17

dBVrus

@

Check

that

1C26

1

is

1.0

V

when

output

is

maximum,

and

is

4.8

V

when

output

is

minimum.

e

YES:

Check

voltage

in

the

vicinity

of

1C26,

®NG:

Check

connector

CN21-1.

>

Check

@&.

1C26

5

(R)

Max:

-17

dBVRMS

Min:

-80

dBVRMS

or

below

®@

Check

voltages

of

1C57

pins

5,

6

and

7.

(Voltage

at

1C57

5

is

approx.

5.5

V

when

Fader

ON,

and

0.7

V

when

Fader

off.)

DC

2.0

V

(max)

to

9.9

V

(min)

Variable

with

manual

VR

1C57

7

7.

Adjustment

Procedures

.

Adjustments

the

timing

pulse

Input:

Full-field

color

bar

signal

(white:

100

%),

1.0

Vp-p

Measurement:

10

Mohms

probe,

using

dual-trace

oscilloscope.

Voltage

measurement

using

digital

tester

having

impedance

of

1

Mohms

or

more.

JX-W9

“

Test

point

Adhustmont

Name

Condition

Check

point

1}

1C49

6

VR26

BURST

,

V

R28

WIDTH

Input

signal

cust

A

A:

Set

VR26

so

that

it

comes

in

the

middle

between

the

burst

and

sync

signals.

B:

Set

VR28

so

that

it

comes

in

the

middle

between

the

burst

and

video

signals.

2

|

IC46

10

VR29

H.BL

Input

signal

,

u

t

ial

A.

1

Min.

Set

A

so

that

in

the

middie

of

the

front

porch.

MULTI

TTT

TT

3

|

1C45

pin7

VR27

V.BL

'

r

a

Set

A

so

that

it

comes

before

the

video

signal.

1

—

fo

4

|

1C56

2

VR44

TIM.U

Bypass:

OFF

Set

the

potential

of

IC56

2

0.2

V

Mode:

EFFECT

lower

than

that

of

1C59

1.

Wipe:

Circle

Manual/Auto:

AUTO

IN/OUT:

IN

Ex:

IC59

pint

...10.8V

1

IC56

pin2...10.6V

L

4

|

:

5

|

1C56

pind

VR43

TIM.L

IN/OUT:

OUT

Set

the

potential

of

IC

2

0.2

V

higher

than

that

of

1C59

1.

Ex:

1C59

pint

...1.2V

1C56

pind...

1.4V

6

|

140

15

VR-2

H.F

freerun

}

Set

so

no

signal

is

input.

Set

to

15.620

+25

Hz

7

IC280

pin5,C113

|

C98

|

CHROMA

|

Set

so

no

signal

is

input.

Set

to

4.432607

+25

Hz.

freerunning

Set

to

4.43273

+25

Hz.

(No,

70053)

19°

JX-W9

2.

Video

signal

level,

wipe

pattern

adjustments

Input:

Full-field

color

bar

signal

(white:

100

%),

1.0

Vp-p

Output:

75-ohm

terminal

resister

(Video

terminal

of

Effect

monitor/Rec

Out

terminals)

Others:

10

mohms

probe

Switch

Operation:

Bypass:

OFF,

Manual:

ON,

Manual

control:

Source

when

no

designation

Test

point

Adjustment

point

Name

Condition

Check

point

Output

VR

35

Y

level

Bypass

ON

—

Set

output

level!

to

1

Vp-p.

(Input:

1

Vp-p)

Output

VR

33

Y

level

Bypass

OFF

Set

output

level

to

1

Vp-p.

(Input:

1

Vp-p)

Output

Emitter

of

Q60

Output

VR

34

Fader

Chroma

level:

Set

appropriately

Manual/Auto:

AUTO

Fader:

ON

Color:

White

Color:

Black

Manua!/Auto:

MANUAL

Adjust

so

that

A

becomes

equal.

Adjust

so

that

B-W

jevel

becomes

0.70

V.

0.86

V

ma

VR32

Standard:

10

mV

or

less

(Chroma

signal)

0.05

V

En

vrs)

oe

Set

to

MIN

VR3I

|

fi

:

ff

Turn

clockwise

to

MAX.

Turn

counter-clockwise

from

MAX

|

position

and

adjust

so

that

SYNC

becomes

flat.

Output

Offset

Wipe

pattern:

Circle

Effect:

COLORIZE

Color:

Blue

Range:

MIN

Manual:

MIN

Output

20

(No.

70053)

Y

level

(Colorize,

B/W)

Match

pedestal

sections

of

source

and

background.

Pedestal

of

background

Pedestal

of

source

Set

Y

level

of

background.

1.0V

JX-W9

A

Adjustment

os

.

Test

point

poitit

Name

Condition

Check

point

7

Output

VR

15

Y

level

Effect:

DEFOCUS,

COLORIZE

Set

Y

level

of

background.

(Defocus)

1.0V

Emitter

of

Q30

Set

toDC

3.5

V.

Output

Y

level

Level:

Fully

clockwise

Set

to

71

Vp-p

Paint

1V

Output

VR

10

Y

tevel

Mode:

WIPE

(Back-

Color:

White

ground)

0.56

V

CQ

(Hot

side)

VR-6

a

Carrier

Color:

Black

Set

to

MIN.

balance

VR-8

Carrier

Balanced

point

is

different

for

black

and

batance

white.

IC28

14

Set

to

MAX.

13]

Output

VR-5

Phase

Set

to

mark

Blue

on

the

vectorscope.

Color:

Blue

Output

VR-9

R-Y

Set

to

mark

Red

on

the

vectorscope.

level

;

VR-11

Level

C

level

Mode:

EFFECT

(Source)

Wipe

pattern:

(Upper)

Color:

Blue

Effect:

COLORIZE

Level:

MIN

Output

Set

to

mark

Red

on

the

vectorscope.

Output

Set

to

markings

on

vectorscope.

C

level

(Effect)

VR

14

Phase

(Effect)

H

ST

LIN

Output

Set

to.

marking

on

the

vectorscope.

Set

to

markings

on

the

vectorscope.

Emitter

of

Q47

Mode:

WIPE

Wipe

pattern:

Circle

7

Make

it

lineear.

es

Make

it

linear.

Emitter

of

040

VR

51

V

ST

LIN

VR

61

H.

PAL

Fully

counter-clockwise

VR.52

V.PAL

Fully

counter-clockwise

VR

54

PAL.LEV

Fully

clockwise

Screen

VR

53

PAL.BAL

Set the

center

of

the

circle

to

the

center

Screen

VR

67

H.CENTER

of

the

screen

so

that

the

circle

is

accurately

circular.

(H

direction)

Screen

VR

66

V.CENTER

Set

the

center

of

the

circle

to

around

the

center

of

the

screen.

(V

direction)

Emitter

of

Q51

VR

65

HTA.LEV

|

Wipe

pattern:

H...

2directions

2.5V

V...

2

directions

Make

it

linear.

Emitter

of

Q51

VR

64

HTA.LIN

@Set

to

Vp-p.

@

Make

it

linear.

Emitter

of

O84

VR

57

VTAL

IN

2

sv|

SAN

Make

it

linear.

(No.

70053)

21

JVC JX-W9(E) User manual

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