Sharp DV-5465S Manual de usuario

UDV-94090

DV-5470S

SHARP

SERVICE

MANUAL

SEGTDV5465S//

PAL/SECAM

SYSTEM

COLOUR

TELEVISION

4BS-B

Chassis

DV-5465S

DV-5470S_

the

interests

user-safety

(Required

safety

regulations

some

countries)

the

set

should

restored

its

original

condition

and

only

parts

identical

those

specified

should

used.

CONTENS

ELECTRICAL

SPECIFICATIONS

.......:ceseeeeseeees

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PRINTED

WIRING

BOARD

ASSEMBLIES

IMPORTANT

SERVICE

NOTES

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SCHEMATIC

DIAGRAM

AND

SERVICE

ADJUSTMENT

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VOU

UORCEOOCOCCOSSCOSST

TCE

SOLID STATE

DEVICE

BASE

DIAGRAM

........

BLOCK

DIAGRAM

CHASSIS

LAYOUT

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REPLACEMENT

PARTS

LIST

POUR

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RHR

ERA

SHARP

CORPORATION

UV-394090

DV-5470S

ELECTRICAL

SPECIFICATIONS

Power

INPUt

.........ceceesessssneanes

220—240

Intermediate

Frequencies

Power

COMSUMPTiON

.........ceesesersssssessseresereaes

Picture

Frequency

.........cesesessssesessens

38.9

MHz

Sound

Carrier

Frequency

.....

33.16/33.4

MHz

Audio

Power

Output

Rating

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

{MPO}

Colour

Sub-Carrier

Frequency

.........

34.47

MHz

SPEAKS

oececeeusceceasitsinaavrawecaceen

Round

pes

(Nominal)

Voice

Coil

Impedance

............06.

ohms

600

Aerial

Input

Impedance

CONVEFGeNCe

.......cserersene

Self

Converging

System

MIME

ceccsecteactseceoncdceteees

ohm

Unbalanced

FOCUS

is\ssnasssaciauleoninnttecs

Bi-Potential

Electrostatic

Tuning

Ranges

..........

48.25

MHz

thru

855.25

MHz

Sweep

Deflection

...........ccecsscecsecseesssseee

Magnetic

CATV

Special

Channels

Specifications

are

subject

change

without

prior

notice.

WARNING

The

chassis

this

receiver

partially

hot.

Use

isolation

transformer

between

the

line

cord

plug

and

power

receptacle,

when

servicing

this

chassis.

prevent

electric

shock,

not

remove

cover.

user

—

serviceable

parts

inside.

Refer

servicing

qualified

service

personnel.

VV-o40900

DV-5470S

IMPORTANT

SERVICE

NOTES

Maintenance

and

repair

this

receiver

should

done

qualified

service

personnel

only.

SERVICING

HIGH

VOLTAGE

SYSTEM

AND

PICTURE

TUBE

When

servicing

the

high

voltage

system,

remove

static

charge

from

connecting

ohm

Resistor

series

with

insulated

wire

(such

test

probe)

between

picture

tube

ground

tag

and

high

voltage

lead.

(AC

line

cord

should

disconnected

from

outlet.)

Picture

tube

this

receiver

employs

integral

implosion

protection.

Replace

with

tube

the

same

type

number

for

continued

safety.

not

lift

picture

tube

the

neck.

Handle

the

picture

tube

only

when

wearing

shatterproof

goggles

and

after

discharging

the

high

voltage

completely.

X-RAY

This

receiver

designed

that

any

X-Ray

radiation

kept

absolute

minimum.

Since

certain

malfunctions

servicing

may

produce

potentially

hazardous

radiation

with

prolonged

exposure

range,

the

following

precautions

should

observed:

When

repairing

the

circuit,

sure

not

increase

the

high

voltage

than

30.0

kV,

(at

beam

1A)

for

the

set.

keep

the

set

normal

operation,

sure

make

function

25.5

1.5

{at

beam

1100

the

case

the

set.

The

set

has

been

factory

—

Adjusted

the

above-

mentioned

high

voltage.

there

possibility

that

the

high

voltage

fluctuates

result

the

repairs,

never

forget

check

for

such

high

voltage

after

the

work.

not

substitute

picture

tube

with

unauthorized

types

and/or

brands

which

may

cause

excess

X-ray

radiation.

BEFORE

RETURNING

THE

RECEIVER

Before

returning

the

receiver

the

user,

perform

the

following

safety

checks.

Inspect

all

lead

dress

make

certain

that

leads

are

not

pinched

that

hardware

not

lodged

between

the

chassis

and

other

metal

parts

the

receiver.

Inspect

all

protective

devices

such

non-metallic

control

knobs,

insulating

fchpapers:

cabinet

backs,

adjustment

and

compartment

covers

shields,

isolation

resistor-capacity

networks,

mechanical

insulators

etc.

UDV-34090

DV-5470S

SERVICE

ADJUSTMENT

PIF/SIF/AGC/G2

Adjustment

Trap

Adjustment

Adjusting

Point

11201:

Trap

coil:

(Adj.-P

Trap)

Connect

sweep

generator

output

(FA

(1)).

Connect

response

cable

with

detector

collector

line

Q1200

(see

diagram).

Oscilloscope

GND

Adjust

11201

(Adj.-P

Trap)

that

trap

(32.4

MHz).

{32.4

MHz)

Trap.

Adj.

T1201

VCO

Adjustment

Adjusting

Point

114202:

VCO

adjust

coil

(FA)

in IF

unit.

Frequency:

38.9

MHz

(CW)

kHz

Level:

approx.

Adjust

T1202

that

voltage

(7)

(AFT.

output)

connector

(FA)

unit

2.5

+0.2V.

Coffector

Qi200.

Apply

2.5V

(25)

1C1200

(PIF-AGC).

Feed

the

following

signal

(1)

connector

Separation

Adjustment

Adjusting

Point

R1219:

Separation

control

Receive

the

following

signal

from

IGR

stereo

signal

generator.

Video

Signal:

Colour

bar

(875%

mod.)

Stereo

Mode:

(unmodulated}

‘R

(400

modulated):

Wake

sure

the

unit

the

stereo

mode

with

OSD

(On-Screen

Display)

on.

Terminate

(3)

(audio

output)

21-pin

connector

with

impedance.

Adjust

separation

control

(R1219)

until

400

output

waveform

becomes

minimum.

AGC

Adjustment

Adjusting

Point

{]

R1216:

AGC

contro!

Receive

“COLOUR

BAR”

signal.

signal

strength:

(terminated

with

75Q)

Connect

voltmeter

Test

Point

TP1200

(RF

AGC).

Set

AGC

control

(R1216)

maximum

position

(memory).

Adjust

R1216

obtain

voltage

0.1

below

maximum

voltage

(step

3).

Adjustment

Receive

“MONOSCOPE

PATTERN”

signal.

Connect

voltmeter

with Test

probe

attenuator

1000)

PWB-B.

Adjust

Screen

control

obtain

700

G2.

Focus

Adjustment

—

Receive

"MONOSCOPE

PATTERN"

sgnal

Adjust

Focus

control

have

best

focus

the

central

area

CRT

screen.

110

Adjustment

Receive

"MONOSCOPE

PATTERN"

signal.

Connect

voltmeter

TP700.

Adjust

the

R755

until

the

TP700

voltage

becomes

100V+0.5V.

DVv-54708___

SERVICE

MODE

FUNCTION

This

mode

function

provided

assist

with

the

settings

those

adjustments

that

may

vary

from

one

Picture

Tube

another,

between

models.

order

use

the

Service

Mode

ConnectTest

Pattern

signal

antenna

terminal.

Press

main

switch

off.

Press

and

buttons

and

main

switch

simultaneously.

—SERVICE

SOFTWARE—

will

appear

screen.

RWNo

The

required

adjustments

can

then

made

from

the

Remote

Control

Unit.

The

only

buttons

required

are

the

following:

for

movement

adjustment

options

menu;

are

used

carry

out

adjustment

said

menu;

ON/OFF

used

memorize

new

adjustment.

Adjustment

follows:

—

SERVICE

SOFTWARE

—

CROMA-LUMA

DELAY

—

VERT.

SHIFT

—

HOR.

SHIFT

—

VERT.

BREATHING

—

VERT.

AMPLITUDE

—

§-CORRECTION

—

RED

REFERENCE

—

GREEN

REFERENCE

—

BLUE

REFERENCE

—

ALTER

NVM

POS

—

ALTER

NVM

VAL

—

AUTO

INSTALLATION

—

OPC

VALUE

(DV-54705

only)

Having

finalized

adjustments,

exit

service

mode,

press

main

switch

off.

Adjustment

Note:

The

procedure

for

making

adjustments

Vertical

Corrections

follows:

—

Adjust

S-CORRECTION

—

Adjust

VERT.

SHIFT

—

Adjust

VERT.

AMPLITUDE

DV-5465S

DV:5470S

GEOMETRY

atamiabae

led

PROCEDURE

CHROMA-LUMA

DELAY

Receive

Philips

pattern

signal.

When

volume-up

button

pressed,

[uma

phase

delays.

When

volume-down

button

pressed,

chroma

phase

delays.

Adjust

the

Chroma-Luma

delay.

VERT.

SHIFT

Receive

Philips

pattern

signal.

When

volume-down

button

pressed,

picture

moves

up.

When

volume-up

button

pressed,

picture

moves

down.

Adjust

the

Vertical

location

obtain

picture

centering

(fig.

1)...

HOR.

SHIFT

Receive

Philips

pattern

signal.

When

volume-up

button

pressed,

picture

moves

the

left.

When

volume-down

button

pressed,

picture

moves

the

right.

Adjust

the

horizontal

location

obtain

picture

centering

(fig.

2).

VERT.

AMPLITUDE

Receive

Philips

pattern

signal.

When

volume-up

button

pressed,

vertical

size

picture

increases.

When

volume-down

button

pressed,

vertical

size

picture

decreases.

Adjust

the

vertical

size

obtain

overscan

(fig.

3).

S-CORRECTION

Receive

Philips

pattern

signal.

b})

When

volume-up

button

pressed,

upper

and

lower

scanning

decreases,

and

center

scanning

increases.

When

voiume-down

button

pressed,

upper

and

lower

scanning

increases,

and

center

scanning

decreases.

Adjust

the

S-correction

obtain

balance

between

upper,

lower

and

center

(fig.

4).

Fig.

DV-946

The

following

adjustments

are

only

required

when

the

Picture

Tube

changed.

RED

REFERENCE

GREEN

REFERENCE

BLUE

REFERENCE

Adjust

G2.

Tune

white

pattern.

Adjust

colour

minimum.

Position

colourmeter

the

center

screen.

Using

brightness

and

contrast

buttons,

select

luminance

120

NITS.

Operate

again

Service

Mode

and

select

location

RED

REFERENCE

GREEN

REFERENCE

BLUE

REFERENCE

obtain

colour

coordinates:

0.290

0.015

0.284

0.015

Exit

Service

Mode

and

check

colour

coordinates

‘X’

and

“Y’

and

120-NITS.

may

necessary

repeat

procedure.

NOTE:

Locations:

RED

REFERENCE

alter

‘X’

coordinate;

GREEN

REFERENCE

alter

the

‘Y’

coordinates;

BLUE

REFERENCE

alter

the

‘X’

and

‘Y’

coordinates.

ALTER

NVM

POS

XX XX

Assigned

value

Storage

Location

When

-4

buttons

are

pressed,

alter

Storage

Location.

ALTER

NVM

VAL

Assigned

value

Storage

Location

When

-2

buttons

are

pressed,

alter

Assigned

value.

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DV-5470S

DNE5465S

DW:5470S

SOLID'STATE

DEVICE

BASE

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VS2SC2412KQ-1

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——

DV-5465S

DV-54655

DV-5470S

CHASSIS

LAYOUT

851002

§1003

8100)

51004

MAIN

UNIT

DV-5470S

ONLY

VCJI/STEXT

IF/IGR

UNIT

CFi200

CF1201

CFi202

R1219

SEPARATION

}

R1216

CRT—UNIT

DV-5465S

DV-5470S

PRINTED

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