Sanyo 28DN1 Bedienungsanleitung

Dieses Handbuch passt für folgende Modelle

5

Inhaltsverzeichnis

Andere Sanyo Fernseher Handbücher

Sanyo

Sanyo DS19500 Bedienungsanleitung

Sanyo

Sanyo DP37647 - 37" Vizzon LCD TV Bedienungsanleitung

Sanyo

Sanyo DP19648 - 19" LCD TV Bedienungsanleitung

Sanyo

Sanyo CPP2910 Bedienungsanleitung

Sanyo

Sanyo C21TF26S Bedienungsanleitung

Sanyo

Sanyo CT29FS1 Bedienungsanleitung

Sanyo

Sanyo LCD-39XR12F Bedienungsanleitung

Sanyo

Sanyo CE28D6-C Bedienungsanleitung

Sanyo

Sanyo CM14SW8S Bedienungsanleitung

Sanyo

Sanyo LE22S630P Bedienungsanleitung

Sanyo

Sanyo CP29AF2 Bedienungsanleitung

Sanyo

Sanyo C21LB29S Bedienungsanleitung

Sanyo

Sanyo DS27510 Bedienungsanleitung

Sanyo

Sanyo DS31590 Bedienungsanleitung

Sanyo

Sanyo DP26746 - 26" LCD TV Produktinformationsblatt

Sanyo

Sanyo DS25500 Bedienungsanleitung

Sanyo

Sanyo CE28DN7-C Bedienungsanleitung

Sanyo

Sanyo CZP3012 Bedienungsanleitung

Sanyo

Sanyo CP21G1 Bedienungsanleitung

Sanyo

Sanyo DP39E23 Bedienungsanleitung

Sanyo

Sanyo CAP3021TXW Bedienungsanleitung

Sanyo

Sanyo CZP3024TX Bedienungsanleitung

Sanyo

Sanyo CE15LC3-B Bedienungsanleitung

Sanyo

Sanyo CE28WN5-B Bedienungsanleitung

Beliebte Fernseher Handbücher anderer Marken

Toshiba

Toshiba 27A10 Bedienungsanleitung

Philips

Philips 42PF9630A/37 Bedienungsanleitung

Hitachi

Hitachi 32FX48B Bedienungsanleitung

DAEWOO ELECTRONICS

DAEWOO ELECTRONICS DTQ-14V1FC Bedienungsanleitung

Changhong Electric

Changhong Electric uhd55b6000is Bedienungsanleitung

Philips

Philips Matchline 21CE7551 Bedienungsanleitung

Panasonic

Panasonic Genus TX-G10 Bedienungsanleitung

Toshiba

Toshiba 19A20 Bedienungsanleitung

Philips

Philips 25PT4523-16 Bedienungsanleitung

Sony

Sony XBR-100Z9D Bedienungsanleitung

Philips

Philips PR0930X3 Bedienungsanleitung

Philips

Philips Brilliance 231P4QPY Bedienungsanleitung

Samsung

Samsung 55S9 B Series Bedienungsanleitung

Philips

Philips 32HF9385D Fehlerbehebungshandbuch

Philips

Philips Colour Television Bedienungsanleitung

Sharp

Sharp LC-40FI5012E Bedienungsanleitung

Loewe

Loewe Table Stand Reference 55 Bedienungsanleitung

Philips

Philips 32PFH5300 Bedienungsanleitung

SANYO

Colour

Television

Service

Manual

Mascot

No.

28DN1

PRODUCT

CODE:

1113

25302

ORIGINAL

VERSION:

Chassis

No.

EB4-A

Mascot

No.

25DN1

PRODUCT

CODE:

1113

25402

ORIGINAL

VERSION:

Chassis

No.

EB4-A

Common

Specifications

Power

source

AC

220~240V

50Hz

Television

system

System

|

Colour

system

PAL

Receiving

channel

UHF

21~69

Aerial

input

impedance

75ohm

AV

terminal

21

Pin

sockets

CENELEC

standard

C28EH65NB

Specifications

Sound

output(Music)

12

watts

X2

Mascot

No.

21DN1

Picture

tube

70cm

diagonal,

110

degree

(Visible

picture

diagonal)

66cm

PRODUCT

CODE:

1113

25502

Dimensions

(WxHxD)

740

x

585

x

494mm

ORIGINAL

VERSION:

Chassis

No.

EB4-A

Weight

31.6

Kg

C25EG65NB

Specifications

Sound

output(Music)

12

watts

X2

Picture

tube

63cm

diagonal,

110

degree

Give

complete

"SERVICE

REF.

NO."

for

parts

order

or

|

(Visible

picture

diagonal)

59cm

servicing,

it

is

shown

on

the

rating

sheet

on

the

|

Dimensions

(WxHxD)

—

680

x

535.5

x

449.5mm

cabinet

back

of

the

TV

set.

Weight

25.5

Kg

C21EF45NB

Specifications

Note

Sound

output(Music)

9

watts

X2

This

TV

receiver

will

not

work

properly

in

foreign

|

Picture

tube

55cm

diagonal,

90

degree

countries

where

the

television

transmission

system

|

(Visible

picture

diagonal)

51cm

and

power

source

differ

from

the

design

specifications.

|

Dimensions

(WxHxD)

596

x

465.5

x

483mm

Refer

to

the

specifications

for

the

design

specifications

Weight

21.5Kg

Part

No.

SKSM0147

F2WCV

SAFETY

PRECAUTION

1:

An

isolation

transformer

should

be

connected

in

the

3:

When

replacing

a

chassis

in

the

cabinet,

always

be

power

line

between

the

receiver

and

the

AC

line

when

certain

that

all

the

protective

devices

are

installed

a

service

is

performed

on

the

primary

of

the

converter

properly,

such

as,

control

knobs,

adjustment

covers

or

transformer

of

the

set.

shields,

barriers,

isolation

resistor-capacitor

networks

2:

Comply

with

all

caution

and

safety-related

notes

etc.Before

returning

any

television

to

the

customer,

provided

on

the

cabinet

back,

inside

the

cabinet,

on

the

service

technician

must

be

sure

that

it

is

the

chassis

or

the

picture

tube.

completely

safe

to

operate

without

danger

of

electrical

shock.

X-RADIATION

PRECAUTION

The

primary

source

of

X-RADIATION

in

the

television

receiver

is

the

picture

tube.

The

picture

tube

is

specially

constructed

to

limit

X-RADIATION

emissions.

For

continued

X-RADIATION

protection,

the

replacement

tube

must

be

the

same

type

as

the

original

including

suffix

letter.

Excessive

high

voltage

may

produce

potentially

hazardous

X-RADIATION.

To

avoid

such

hazards,

the

high

voltage

must

be

maintained

within

specified

limit.

Refer

to

this

service

manual,

high

voltage

adjustment

for

specific

high

voltage

limit.

If

high

voltage

exceeds

specified

limits,

take

necessary

corrective

action.

Carefully

follow

the

instructions

for

+B1

volt

power

supply

adjustment,

and

high

voltage

adjustment

to

maintain

the

high

voltage

within

the

specified

limits.

PRODUCT

SAFETY

NOTICE

Product

safety

should

be

considered

when

a

component

replacement

is

made

in

any

area

of

a

receiver.

Components

indicated

by

mark

/!\

in

the

parts

list

and

the

schematic

diagram

designate

components

in

which

safety

can

be

of

special

significance.

It

is

particularly

recommended

that

only

parts

designated

on

the

parts

list

in

this

manual

be

used

for

component

replacement

designated

by

mark

/!\

.

No

deviations

from

resistance

wattage

or

voltage

ratings

may

be

made

for

replacement

items

designated

by

mark

/!\

.

F2VCV

BLOCK

DIAGRAM

This

is

a

diagram

for

all

models

and

therefore

differs

slightly

from

the

actual

block

diagram.

q

KosuA

NY

wun)

LHO

"MS

ZAV

SEAD

bOctOl

OO

yu

7

U]

OB@PIA

Uy

OIpny

\

h

/

siayeads

Ba

indino

oipny

LOOO!

yoeqpesss-A

}]

Ey

BANC

INdINO

“eA

udinOo-H

ZEPO

"MS

IX@AU!

SAAD

ZOZLOI

NOs

|

O/

olpny

O/f

OBPIA

q

CAV

-HEDS

die

LOSO!

"yeq/ewo1y/O@piA/s

L0zol

@AuG-H

LAV

-HE9S

dlc

Ave

‘va

AS}

:€@

AS¢

:2a

AOS}

‘ta

YW

‘73NO

olpny

LE/Oe

OL/pl

A-G/A-d

62/82

b/Lb

A-G/A-Y

Kejaq

HL

t£Z91

O/|

olpny

JOU MVS

LELX

(ZAW/LAW)Ul

uInjouns

ssoudseys

:G

snojoD

:v

ysueUOD

:¢

]YBug

:z

—O

O

shay

jou0og

7

T

WNosIg

Ajddng

semod

wu)

Olpny

yun

SIS

dl

NL

nm

HA

a

"MS

pueg

OL80]

Aiowayy

Z080!1

dwe'daid

OH

F2VCV

CIRCUIT

DESCRIPTION

1.

POWER

SUPPLY

The

power

supply

circuit

of

the

EB4-A

chassis

is

composed

of

a

rectifier

smoothing

circuit,

an

oscillation

circuit,

a

control

circuit

and

an

output

rectifier

circuit.

The

AC

input

voltage

is

full-wave

rectified

by

the

rectifier

smoothing

circuit,

and

an

unstable

DC

voltage

is

generated

at

both

terminals

of

the

smoothing

capacitor

C607.

This

voltage

is

input

to

the

oscillation

circuit.

The

oscillation

circuit

is

provided

with

a

blocking

oscillator

circuit

that

switches

the

switching

transistor

Q613

ON

and

OFF,

and

an

oscillation

frequency

and

a

duty

square

wave

pulse

are

generated

in

the

input

windings

according

to

operation

of

the

control

circuit.

A

square-

wave

pulse

whose

size

is

dependent

on

the

turn

ratio

of

the

input

and

output

windings

is

obtained

in

the

output

winding.

This

is

rectified

in

the

output

rectifier

circuit,

and

the

desired

DC

voltage

is

obtained.

2.

IF

&

DEFLECTION

(TDA8361)

The

IF

output

signal

from

the

tuner

passes

through

the

SAW

filter,

and

it

is

input

to

pin45

and

pin46

of

IC201.

The

signal

input

to

the

IC

passes

through

the

IF

amplifier,

video

detection

and

video

amplifier

circuits

and

is

output

from

pin7

as

a

composite

video

signal.

And

after

this

signal

is

converted

to

impedance

at

Q151,

supplies

to

the

video

and

chroma

amplifier

stages.

The

sync.-separation

circuit

separates

the

video

signals

applied

to

pin13(internal

video

signal)

or

pin15(external

video

signal)

to

vertical-

and

horizontal-sync.

signals

respectively.

The

horizontal

oscillator

requires

no

external

components

and

is

fully

integrated.

The

oscillator

is

always

running

when

the

start-pin36

is

supplied

with

8V.

Horizontal

drive

signal

is

output

from

pin37.

VR361

is

for

adjustment

of

the

horizontal

centring.

The

separated

vertical-sync.

signal

from

sync.

separation

circuit

passes

through

the

vertical-separation

circuit,

and

applied

to

trigger

divider

circuit.

The

horizontal

oscillation

pulse

and

input

vertical

sync.

pulse

are

monitored

by

the

trigger

divider

circuit,

and

switching

50Hz

and

60Hz

system,

the

vertical

amplitude

automatically

adjusted

for

50Hz

and

60Hz.

The

output

signal

from

the

trigger

divider

is

triggered

vertical

oscillation

circuit

consisting

of

C351,

R352

and

pin42,

and

vertical

drive

pulse

is

output

from

pin43.

VR501

is

for

changing

the

amount

of

AC

feedback

applied

to

pin41

and

for

adjustment

of

the

vertical

amplitude.

3.

VIDEO

CHROMA

&

R.G.B.

(TDA8361)

The

composite

video

signal

output

from

the

pin7

of

IC101

passes

through

Q151-Q154,

and

it

is

supplied

to

pini3.

The

external

video

signal

output

from

SCART

is

supplied

to

pini5.

The

video

signal

input

to

pin13

or

pini5

is

separated

to

luminance

(Y)

signal

and

chroma

signal

in

1C201.

These

pins

are

used

in

common

with

H/V-sync.

separation

input.

The

peaking

of

Y

signal

is

adjusted

by

DC

voltage

of

pini4.

(“SHARPNESS”

control)

The

chroma

signal

is

divided

into

R-Y

and B-Y

chroma

signals,

demodulated

in

IC201,

and

output

from

pin30

(R-Y)

and

pin31

(B-Y).

These

chroma

signals

pass

through

the

1H

delay

line

circuit

(1C271),

and

they

are

input

to

pin29

(R-Y)

and

pin28

(B-Y).

These

R-Y/B-Y

signals

pass

through

RGB

matrix

circuit

and

RGB

selector

circuit

of

IC101.

The

internal

RGB

signals

are

generated

in

RGB

matrix

circuit

and

the

RGB

selector,

consisting

linear

amplifiers,

clamps

and

selects

either

the

internal

RGB

signals

or

the

external

RGB

signals

input

from

pin22(R),

pin23(G),

pin24(B).

Selection

is

controlled

by

the

voltage

at

the

RGB

switch

control

(pin21)

and

mixed

RGB

modes

are

possible

since

RGB

switching

is

fast.

The

RGB

switch

also

functions

as

a

fast

blanking

pin

by

blanking

the

RGB

output

stages;

here

internal

and

external

RGB

signals

are

overruled.

The

colour

gain

is

controlled

by

DC

voltage

of

pin26.

(“COLOUR”

control)

The

contrast

control

voltage

present

at

pin25,

and

the

brightness

control

voltage

present

at

pint7

controls

DC

level

of

RGB

signals.

The

RGB

signals

are

finally

buffered

before

being

available

at

the

RGB

output

pins

[pin20

(R),

pint9

(G),

pin18

(R)}.

4.

AUDIO

OUTPUT(TDA7263M)

The

audio

signals

output

from

the

audio

unit

are

input

to

pini(L)

and

5(R)

of

IC171

and

passes

through

the

pre-

amplifier

circuit

and

drive

circuit,

after

which

it

is

input

to

the

audio

amplifier.

The

audio

amplifier

is

an

SEPP

(single-ended,

push-pull)

OTL

type

and

output

to

pin8(R)

and

10(L)

to

directly

drive

the

speakers.

5.

VERTICAL

OUTPUT

(LA7832/LA7832)

An

IC

(LA7832/LA7833)

is

used

for

the

vertical

output

circuit

in

this

chassis.

The

vertical

drive

pulse

from

pin43

of

IC201

is

input

to

pin4

of

1C501.

This

pulse

drives

IC501,

and

vertical

scanning

is

performed.

In

the

first

half

of

scanning

a

deflecting

current

is

output

from

pin2

and

passes

through

the

following

path:

Vcc(B4)

—

D501

—

pin’

—

pin2

—

DY

—

C512

=

VR501/R509.

An

electric

charge

is

then

stored

in

C512.

in

the

last

half

of

scanning

the

current

path

is

C512

—

DY

—

pin2

—

pint

—

VR501/R509

—

C512.

In

this

way,

an

amplifying

sawtooth

waveform

current

flows

directly

to

DY

to

perform

electron

beam

defection.

Next,

in

the

first

half

of

the

banking

period

the

vertical

drive

pulse

suddenly

becomes

OFF,

and

in

order

to

reduce

the

current

flowing

to

DY,

the

current

path

becomes

as

follows

by

the

inductance

of

DY:

DY

—

pin2

—

pint

—

VR501/R509

—

C512

—

DY.

Also,

when

the

charge

of

DY

has

dissipated,

the

current

path

becomes

Vcc24V

—

pin6

—

pin7

—

C502

—

pin3

—

ping

DY

—

C512

—

VR501/R509,

and

when

the

prescribed

current

value

is

reached,

the

vertical

drive

pulse

becomes

ON.

This

completes

one

cycle.

-4-

F2VCV

6.

HORIZONTAL

OUTPUT

A

horizontal

oscillation

signal

is

output

from

pin37

of

1C201

and

switches

the

drive

transistor

Q431.

This

switching

signal

is

current

amplified

by

the

drive

transformer

T7431

and

drives

the

output

transistor

Q432.

When

Q432

becomes

ON,

an

amplifying

current

flows

directly

to

DY

through

C441

—

DY

—

0432

—

GND,

and

defection

is

performed

in

the

last

half

of

the

scanning

period.

Next,

when

Q432

becomes

OFF,

the

charge

that

had

been

stored

in

DY

up

to

that

point

releases

a

resonance

current

to

the

resonant

capacitors

C421/C423

and

charges

them.

The

current

stored

in

C421/C423

is

then

flowed

back

to

DY,

and

an

opposite

charge

is

then

stored

in

DY.

This

opposite

charge

then

switches

the

dumper

diode

in

Q432

ON,

the

resonance

state

is

completed,

and

an

amplifying

current

is

then

flowed

again

directly

to

DY

through

the

dumper

diode.

By

this

means,

deflection

in

the

first

half

of

the

scanning

period

is

performed,

and

when

Q432

becomes

ON

at

the

end

of

the

first

half

of

the

scanning

period,

deflection

during

the

last

half

is

begun,

thus

completing

one

cycle.

In

the

PCC

circuit

consisting

of

Q461

and

Q462,

the

parabola

signal

supplied

from

the

vertical

circuit

is

added

at

the

horizontal

output

stage

and

pincushion

compensation

is

performed

by

varying

the

DC

voltage

bias.

Further,

the

ABL

voltage

is

feedback

to

the

base

of

Q462

to

compensate

for

width

variations

due

to

variations

in

the

beam

current.

7.

CPU

<System

and

Teletext

Control>

Pin

description

Pini:

Tuning

voltage

output

Pin2:

Brightness

control

output

(6-bit

DAC)

Pin3:

Contrast

control

output

(6-bit

DAC)

Pin4:

Colour

control

output

(6-bit

DAC)

Pin5:

Sharpness

control

output(6-bit

DAC)

Pin6:

Not

used

(GND)

Pin7:

Not

used

(GND)

Pin8:

Power

ON/OFF

output

(H:ON)

Pin9:

AFT

signal

input

Pin10:

Option

SW1

&

Keyboard

scan

input

(DC)

Pin11:

Option

SW2

Pin12:

50/60Hz

switch

input

(50Hz:

Hi)

Pin13:

GND

Pin14:

TV/AV

switch

output

(TV:

Hi)

Pin15:

S-VHS

switch

output

(S-VHS:

Hi)

Pin16:

Option

SW3

(2AV:

Hi)

Pin17:

Function

signal

input

for

SCART

1

Pin18:

Function

signal

input

for

SCART2

Pin19:

Power

LED

drive

outputt

Pin20:

Option

SW4

&

Power

LED

drive

output2

Pin21:

Ignore

output

Pin22:

GND

Pin23:

CVBS

input0O

(Internal)

Pin24:

CVBS

input1

(Internal/External)

F2VCV

Pin25:

Pin26:

Pin27:

Odd/Even

output

Pin28:

GND

Pin29:

-

Pin30:

V-deflection

stop

output

Pin31:

RGB

REF

Pin32:

Blue

output

for

OSD

Pin33:

Green

output

for

OSD

Pin34:

Red

output

for

OSD

Pin35:

Blanking

output

for

OSD

Pin36:

H-sync.

input

(Horizontal

pulse

for

OSD)

Pin37:

V-sync.

input

(Vertical

pulse

for

OSD)

Pin38~39:

Supply

(+5V)

Pin

40:

OSC

GND

Pin

41:

Oscillator

input

for

CPU

Pin

42:

Oscillator

output

for

CPU

Pin

43:

Reset

input

Pin

44:

Supply

(+5V)

Pin

45:

Protect

signal

input

(L:Power

circuit

defects)

Pin

46:

Ident.

signal

input

Pin

47:

R/C

signal

input

Pin

48:

Mute

output

in

no

picture

Pin

49:

|2C

bus

SCL

(Serial

clock)

Pin

50:

I2C

bus

SDA

(Serial

date)

Pin

51:

Option

SW5

&

Band

select

outputt

Pin

52:

Band

select

output2

Black

IREF

SERVICE

CONTROL

ADJUSTMENT

B1

POWER

SUPPLY

ADJ.

AFT

ADJ.

TU-AGC

ADJ.

MAIN

BOARD

SW1901

SW1902

swiode

Sw1904

Video-

Audio-

Audio-

Prog.+

Prog-

vol+

\Vol.-

input

input-R

input-L_

Headphones

Ll

i

|

LJ

F

i

2

a

:

‘Rie

E

S

g

z

2

58

8

£5

Bo

@

{3}

nS

fe

ne]

=

ea

a

30]

#2

é

Co

co

°

NY

>+

3

5

<

a

=

38

.

2

frags

bs

bd

BG

aa

613

3

[1]

Do]

7)

E

8

g

é

t

as

o

fe

9=

a

gz

4

J]

9

§

ane

FO

5s

Re

U

S

2S

6

le

aa

3

Q432

H-Output

A101

Tuner

HIGH

VOLTAGE

&

FOCUS

ADu.

H-WIDTH

ADu.

V-CENTRE

ADJ.

\V-SIZE

ADJ.

\

H-CENTRE

ADu.

GREY

SCALE

ADJ.

SIF

BOARD

SIF

ADJ.

Ss

38

83

&3

23

CRT

BOARD

\c2611

K38H2

AUDIO

BOARD

101251

PILOT

ADJ.

F2VCV

B1

POWER

SUPPLY

ADJUSTMENT

1.

Set

VR641

to

it’s

mechanical

centre

before

pressing

the

mains

switch.

.

Tune

the

receiver

to

a

PAL

circular

pattern.

.

Set

the

brightness

and

contrast

controls

to

normal.

.

Connect

a

digital

V-meter

to

test

point

"TP-B".

.

By

using

VR641,

adjust

the

voltage

to

130

+

0.5

V

(for

21

inch).

By

using

VR641,

adjust

the

voltage

to

150

+

0.5

V

(for

25

and

28

inch).

or

&

G

PN

AFT

ADJUSTMENT

1.

Tune

the

receiver

to

the

clearest

station.

2.

By

using

T141,

adjust

AFT

to

obtain

the

best

picture.

AGC

ADJUSTMENT

NOTE:

Do

not

attempt

this

adjustment

with

a

weak

signal.

1.

Tune

the

receiver

to

the

clearest

station.

2.

Turn

AGC

VR(VR130)

in

direction

which

causes

snow

noise

to

appear,

then

in

the

opposite

direction

until

the

snow

noise

just

disappears.

GREY

SCALE

ADJUSTMENT

[SCREEN

VR

ADJUSTMENT]

1.

Tune

the

receiver

to

the

white

pattern.

2.

Set

the

brightness

and

contrast

controls

to

normal.

3.

Set

VR2601and

VR2611

to

its

mechanical

centre.

4.

Turn

VR2602,

VR2612

and

VR2622

fully

anti-

clockwise.

5.

Set

the

TV

into

service

mode

by

pressing

the

Function

button

FJ

on

the

Remote

control

and

the

Prog

+

Pgon

the

TV

front

panel.

Press

the

Function

button

FE.j

on

the

Remote

control

until

“SCREEN”

is

highlighted.

This

sets

up

a

horizontal

scanning

line.

6.

Set

screen

VR

so

that

one

colour

is

just

visible.

[BIAS

VR

ADJUSTMENT]

7.

By

using

VR2602,

VR2612

or

VR2622,

adjust

line

to

be

white.

8.

Set

screen

mode

OFF,

by

pressing

the

Recall

button

(-]®%)

on

the

Remote

control.

[DRIVE

VR

ADJUSTMENT]

9.

By

using

VR2601

and

VR2611,

adjust

white

balance.

F2VCV

HIGH

VOLTAGE

&

WIDTH

ADJUSTMENT

[HIGH

VOLTAGE

ADJUSTMENT]

1.

Tune

the

receiver

to

circular

pattern.

2.

Set

the

brightness

and

contrast

controls

to

maximum.

3.

Connect

digital

V-meter

to

both

terminals

of

R224,

and

a

high

voltage

meter

to

the

CRT

anode.

4.

Confirm

high

voltage

to

be

25.0

+

1

KV

at

beam

current

1.1,

and

less

than

28.0

KV

at

0

beam

current

(for

21

inch).

Confirm

high

voltage

to

be

26.0

+

1

KV

at

beam

current

1.3,

and

less

than

29.0

KV

at

0

beam

current

(for

25

inch).

Confirm

high

voltage

to

be

26.0

+

1

KV

at

beam

current

1.4,

and

less

than 29.0

KV

at

0

beam

current

(for

28

inch).

[H-WIDTH

ADJUSTMENT]

5.

lf

H-width

is

too

wide

or

narrow,

connect

or

disconnect

a

lead

wire

J213(for

21

inch).

Adjust

VR462

to

obtain

proper

H-

width

(for

25

and

28

inch).

6.

Reconfirm

high

voltage.

H-CENTRE

ADJUSTMENT

1.

Tune

the

receiver

to

circular

pattern.

2.

Adjust

H-centre

by

using

VR361.

V-CENTRE

ADJUSTMENT

1.

Tune

the

receiver

to

circular

pattern.

2.

Adjust

V-centre

by

using

SW501.

V-SIZE

ADJUSTMENT

1.

Tune

the

receiver

to

circular

pattern.

2.

Adjust

V-size

by

using

VR501.

FOCUS

ADJUSTMENT

By

using

FOCUS

VR,

adjust

focus

control

for

good

scanning

lines.

CIRCUIT

ALIGNMENT

10kQ

as

0.

ae

VIF

alignment

Input

probe

Output

probe

ser

a

DC

15.5V

C644

+

By

using

T141,

adjust

"P"

to

AGC

voltage

(4.3-4.5V)

1C201-pin48

be

maximum

amplitude.

Output

probe

1C201-pin45

(Side

b)

Input

probe

1C201-pin7

39.5MHz

20dB

Marker

frequency

Sweep

ATT

OdB=176mVrms/75

Trap

alignment

sera

ee

DC

15.5V

C644

+

By

using

T101,

adjust

"A"

to

Output

probe

Tuner

IF

be

minimum

amplitude.

(Side

a)

Q101-C

Input

probe

Marker

frequency

Sweep

ATT

OdB=176mVrms/75

41.5MHz

11dB

SIF

alignment

SETTING

Adjustment

Waveform

DC

12V

1IC3801-pin11

1.

Adjust

AGC

voltage

to

be

AGC

voltage

1C3801-pin3

"A"

=

0.5Vp-p.

nan

Output

probe

1IC3801-pin1

2.

By

using

T3801,

adjust

"P"

p

(Side

b)

to

be

equal

centre

line.

Input

probe

1IC3801-pin12

Sweep

ATT

10dB

Marker

Frequency

38.5MHz

F2VCV

INITIALISATION

(important

Notice)

When

you

replace

a

memory

IC

(IC802),

it

is

necessary

to

initialise

the

IC

as

following

step.

A.

initialisation

Press

and

hold

the

normalisation

button

>+<

on

the

remote

control

handset

and

press

the

programme

+

button

PA

on

the

TV

set.

The

IC

will

be

initialised

automatically

to

set

the

following

data.

User

control

data

Colour

:

Centre

Brightness

:

Centre

Contrast

:

Maximum

Sharpness

:

Centre

Text.

Bright

:

Centre

Bass

:

Centre

Treble

:

Centre

Balance

:

Centre

Volume

:

Step

12

Service

data

Manual

set

data

K1

:

+000

->

+001

K2

:

+000

->

-001

ST

ID

:

+000

ATT

:

+004

The

initialised

service

data

of

items

K1

and

K2

should

be

modified

to

the

manual

set

data

shown

above.

For

how

to

modify,

refer

to

next

step.

B.

Service

Mode

1.

To

entre

the

service

mode,

press

and

hold

the

Function

button

F(.)

on

the

remote

control

handset

and

press

the

programme

+

button

PA

onthe

TV

set.

The

following

OSD

appears

on

the

screen.

ADJUST

CPU

Ver

2.

Select

desired

service

item

by

using

the

Function

button

FC.)

onthe

remote

control

handset.

3.

Change

date

by

using

the

Level

+

or

-

button

——a

+

4.

To

return

to

TV

mode

press

the

Recall

button

(-)¥)

on

the

remote

control

handset.

F2VCV

Service

mode

description

K1,

K2

:

For

adjustment

of

stereo

separation

STID_

:

Mode

setting

for

A2

stereo

judgement

+000

:

Fast

mode

+001:

Normal

mode

+002:

Fast

->

normal

mode

ATT

_

:

Attenuation

of

FM

sound

To

equalise

sound

level

between

FM

and

Nicam.

SCREEN:

For

screen

adjustment

To

make

one

horizontal

scanning

line.

NOTE:

The

items

K1,

K2,

ST

ID

and

ATT

are

invalid

adjustments

for

this

model.

The

data

for

K1,K2,ST

ID

and

ATT

can

be

altered,

but

it

but

has

no

effect.

CABINET

PARTS

LIST

C28EH65NB

Note:

Parts

order

must

contain

Service

Ref.

No.,

Part

No.,

and

descriptions.

Part

No.

Description

Part

No.

Description

CABINET

PARTS

ge

610

2776

ASSY,CABINET

FR-F2WCV

610

6529

ASSY,GRILLE

SP-E7GC

610

1178

CABINET

BACK-E7MC

610

2790

DOOR-F2WCV

610

6118

DEC

BOARD-F2WTM

610

7581

DEC

CONTROL

SHEET-F2WTM

610

2449

HOLDER

AC

CORD-GBR-D4VA

645

9256

BADGE,

SANYO*46.2X13.5L45

610

2505

LATCH

PUSH,7.9X6.9BK

610

7302

COIL

SPRING-D8HA

610

7151

DC

HOLDER

HBZ

OW

MAAN

PW

NH

he

KNOBS

i

610

BUTTON

POWER-E7KC

ACCESSORIES

12

IXTI

RC

TRANSMITTER

A9901A

610

RC-CASE

TOP-JXTA

A9901B

610

RC-CASE

BOTTOM-JXTA

A9901C

610

RC-BATTERY

LID~JXTA

A9901D

610

RC-TRANSPARENT

BOARD-JXTA

AII0I1E

610

DEC

RC

SHEET-JXTJ

610

INSTRUCTIONS

MANUAL-F2WCV

-10-