Sharp Lc-121m2e User manual

LC-121M2E

LC-150M2E

SHARP

SERVICE

MANUAL

$19B4LC121M2E

LCD

AV

MONITOR

LC-121M2E

~~

MODELS

LC-150M2E

inthe

interests

of

user-safety

(Required

by

safety

regulations

in

some

countries)

the

set

should

be

restored

to

condition

and

only

parts

identical

to

those

specified

be

used.

its

original

ie

CONTENTS

7

Page

1.

IMPORTANT

SERVICE

SAFETY

PRECAUTION

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me)

The

component

parts

of

this

model

are

partially

different

depending

on

their

suffix

symbols.

Before

servicing

the

units,

be

sure

to

check

the

suffix

symbol

on

the

model

label

that

is

applied

on

the

bottom

side

of

the

unit.

Suffix

symbol

(__,[K],[X])

SHARP

CORPORATION

LC-121M2E

LC-150M2E

1.

IMPORTANT

SERVICE

SAFETY

PRECAUTION

@

Service

work

should

be

perfomed

only

by

qualified

service

technicians

who

are

thoroughly

familiar

with

all

safety

checks

and

servicing

guidelines

which

follow:

WARNING

1.

For

continued

safety,

no

modification

of

any

circuit

should

be

attempted.

2.

Disconnect

AC

power

before

servicing.

CAUTION

FOR

CONTINUED

PROTECTION

AGAINST

A

RISK

OF

FIRE

REPLACE

ONLY

WITH

SAME

TYPE

FUSE.

F701

(1.25A,

250V),

F702

(2A,

250V),

F703

(1.25A,

250V)

FUSE.

BEFORE

RETURNING

THE

MONITOR

(Fire

&

Shock

Hazard)

Before

returning

the

monitor

to

the

user,

ee

lieats

the

following

safety

checks:

1.

Inspect

all

lead

dress

to

make

certain

that

leads

are

not

pinched,

and

check

that

hardware

is

not

lodged

between

the

chassis

and

other

metal

parts

in

the

monitor.

2.

Inspect

all

protective

devices

such

as

non-me-

tallic

control

knobs,

insulation

materials,

cabinet

backs,

adjustment

and

compartment

covers

or

Shields,

isolation

resistor-capacitor

networks,

mechanical

insulators,

etc.

3.

Tobe

sure

that

no

shock

hazard

exists,

check

for

current

in

the

following

manner.

¢

Plug

the

AC

Adaptor

directly

into

a

100~240

volt

AC

outlet,

and

connect

the

DC

power

cable

into

the

monitor's

DC

jack.

(Do

not

use

an

isolation

transformer

for

this

test).

¢

Using

two

clip

leads,

connect

a

1.5k

ohm,

10

watt

resistor

paralleled

by

a

0.15uF

capacitor

in

series

with

all

exposed

metal

cabinet

parts

and

a

known

earth

ground,

such

as

electrical

conduit

orelectrical

ground

connected

to

an

earth

ground.

¢

Use

an

AC

voltmeter

having

with

5000

ohm

per

voit,

or

higher,

sensitivity

or

measure

the

AC

voltage

drop

across

the

resisor.

*

Connect

the

resistor

connection

to

all

exposed

metal

parts

having

a

return

path

to

the

chassis

(antenna,

metal

cabinet,

screw

heads,

knobs

and

control

shafts,

escutcheon,

etc.)

and

meas-

ure

the

AC

voltage

drop

across

the

resistor.

All

checks

must

be

repeated

with

the

AC

Adap-

tor

plug

connection

reversed.(If

necessary,

a

nonpolarized

adaptor

plug

must

be

used

only

for

the

purpose

of

completing

these

checks.)

Any

reading

of

0.3V

RMS(this

corresponds

to

0.2

milliamp.

AC.)

or

more

is

excessive

and

indicates

a

potential

shock

hazard

which

must

be

corrected

before

returning

the

monitor

to

the

owner.

DVM

0

AC

SCALE

o

0.15

pF

TEST

PROBE

TO

EXPOSED

CONNECT

TO

METAL

PARTS

KNOWN

EARTH

GROUND

SAFETY

NOTICE

Many

electrical

and

mechanical

parts

in

LCD

monitor

have

special

safety-related

characteristics.

These

characteristics

are

often

not

evident

from

visual

inspection,

nor

can

protection

afforded

by

them

be

nec-

essarily

increased

by

using

replacement

components

rated

for

higher

voltage,

wattage,

etc.

Replacement

parts

which

have

these

special

safety

characteristics

are

identified

in

this

manual;

electrical

components

having

such

features

are

identified

by

“

A\”

and

shaded

areas

in

the

Replacement

Parts

Lists

and

Schematic

Diagrams.

For

continued

protection,

replacement

parts

must

be

identical

to

those

used

in

the

original

circuit.

The

use

of

a

substitute

replacement

parts

which

do

not

have

the

same

safety

characteristics

as

the

factory

recommended

replacement

parts

shown

in

this

service

manual,

may

create

shock.

fire.

or

other

hazards.

2.

SPECIFICATIONS

Type:

Size:

Display

System:

Driving

System:

Number

of

Picture

Elements:

Speaker

Output:

Speaker:

Light

Source:

Connected

Terminals:

Power

Source:

Power

Consumption

(Approx.):

Operating

Temparature:

12.1"

type

Dimensions(LC-121M2E):

15"

type

Dimensions(LC-150M2E):

Weight

(Approx.):

Accessories:

LC-121M.

|

LC-150M2t.

LCD

display

unit

(LCD

color

AV

monitor)

12.1"

type

(184.3

mm

x

245.8

mm)

(LC-121M2E)

15"type

(219.9

mm

x

305.3

mm)

(LC-150M2E)

Transmitting

type

TN

liquid

crystal

panel.

TFT

(Thin

Film

Transistor)

active

matrix

system

921,600

(480

(V)

x

640

(H)

x

3

(RBG)

)

0.7

W

x

2

(Front)

2

W

x

1

(Rear)

30

mm

x

40

mm

(Elliptic)

x

2

(Front)

65

mm

(Round)

x

1

(Rear)

Internal

Light

(Built-in

fluorescent

lamp)

Input:

DC12V,

VHS,

S-VHS,

Audio

and

DVD

Output:

VHS,

S-VHS,

Audio

and

Headphone

AC

100~240-50/60Hz

(Connected

to

AC

Adapter)

12.1"

type

33

W

(Connected

to

AC

Adapter)

(LC-121M2E)

15"type

35

W

(Connected

to

AC

Adapter)

(LC-150M2E)

-10°C~40°C

297.4

mm

(W)

x

264.6

mm

(H)

x

87

mm

(D)

(Includes

Set

Stand)

297.4

mm

(W)

x

264.6

mm

(H)

x

62.5

mm

(D)

(Not

Include

Set

Stand)

357.7

mm

(W)

x

309.2

mm

(H)

x

87

mm

(D)

(Includes

Set

Stand)

357.7

mm

(W)

x

309.2

mm

(H)

x

62.5

mm

(D)

(Not

Include

Set

Stand)

12.1"

type

2.9

kg

(LC-121M2E)

15"type

3.6

kg

(LC-150M2E)

Operation

Manual,

Guarantee

Card,

AC

Adapter,

Remote

Control,

Set

Stand

Mounting

Screws,

Wall

mounting

set

angle

and

Batteries

(AAA

size

X

2)

Specifications

are

subject

to

changed

without

prior

notice.

PRP

MAO

ON.

TT

ERTS

NTPC

Ree

SRA

ee

eee

LC-121M2E

LC-150M2E

3.

PART

NAMES

Main

Unit

Main

unit

(rear

view)

|

The

six

buttons

shown

at

the

left

have

the

same

functions

as

those

on

the

remote

control.

<

This

manual

describes

button

functions

by

referring

to

the

buttons

on

the

remote

control.

HTT

TT

ey

Remote

Control

Remote

control

Infrared

tranemitter

window

@

The

side

contro!

section

of

the

main

unit

is

also

provided

with

the

AV

input,

select,

volume

up/

down

and

menu

buttons.

-*:

This

manual

describes

button

functions

by

referring

to

the

buttons

on

the

remote

control.

The

main

power

switch

is

not

provided

on

the

remote

control.

(zzz

ON

ALEEEELEEE

I

a

ee

ZEUIETY

Deve

aa

"

Set

stand

Rear

Speaker

{woofer}

Rear

terminal

oc

Can

also

be

used

as

video

output

terminals.

Audio

input

S-Video

input

terminal

Audio

input

terminal

Component

video

input

terminal

Video

input

Video

input

terminal

(RCA)

SUPPLIED

ACCESSORIES

Make

sure

the

following

accessories

are

provided

with

the

product.

SHARP.

6

Operation

Manual

(1)

Wireless

Remote

Control

(1)

il

=

(e2)

:

ae

Wall

Mount

Bracket

(x1)

*

Product

shape

varies

in

some

countries.

(mp

Fixed

Screw

for

set

stand

(x1)

cpt

AC

Adapter

(x1)

Size

AAA

dry

battery

(x2)

LC-121M2E

LC-150M2E

4.

DISASSEMBLY

OF

THE

SET

1.

Remove

four

screws

((D)).

7.

Remove

four

screws

((4)

which

mounting

the

main

2.

Opening

six

claws

((@),

release

the

cabinet

B.

PWB

unit.

Remove

the

wire

holder

((6))

and

disconnect

each

8.

Remove

one

screw

(45)

and

remove

the

remote

control

connectors

(@)~©).

receptor

PWB.

Remove

the

cabinet

B.

9.

Remove

five

screws

((@)

and

GND

cable.

3.

Remove

two

screws

(@)

which

mounting

the

LCD

10.Removeten

screws

(47)

and

remove

the

terminal

cover.

display

unit.

11.Remove

two

screws

((8))

and

remove

the

switch

PWB.

4.

Remove

soldering

of

copper-foil

tape

(@))

.

5.

Disconnect

each

connectors

(@)~43))

from

the

LCD

display

unit.

6.

Remove

the

cabinet

A.

Cabinet

B

ic

Cabinet

A

12

type

CCABA2338CE01

GCABA2338CEKA

15

type

CCABA2343CE01

GCABA2343CEKA

CCABB2246CE01

GCABB2246CEKA

(LC-121M2E/M)

CCABB2246CE03

GCABB2246CEKA

(LC-121M2x)

15

type

CCABB2249CE01

GCABB2249CEKA

(LC-150M2E/K)

CCABB2249CE03

GCABB2249CEKA

(LC-150M2X)

LC-121M2E

LC-150M2E

12.

Remove

one

screw

(9)

and

remove

the

Sosu

shield

angle.

13.Remove

four

screws

(@0)

which

mounting

the

LCD

display

unit.

14.

Spread

bites

of

the

LCD

unit

(@1)

out

to

be

off

from

Claws.

15.

Remove

the

Lamp

unit

(@).

Holder

LHLDZ2082CEKZ

(LC-121M2E)

LHLDZ2085CEKZ

(LC-150M2E)

LC-121M2E

LC-150M2E

5.

ADJUSTING

PROCEDURE

OF

EACH

SECTION

The

best

adjustment

is

made

before

shipping.

If

any

position

deviation

is

found

or

after

part

replace

is

performed,

adjust

as

follows.

5-1.

Preparation

for

adjustment

(1)Use

the

exclusive-use

AC

adapter

or

stable

DC

power

supply.

AC

adapter:

UADP-0181CEZZ

DC

power

supply:

12

+

0.5V

5-2.

Special

mode

setting

procedure

(1)After

initialization

of

E7PROM

the

mode

is

changed

to

the

adjustment

mode.

[Procedure]

Connect

TP2007

and

TP2008

to

GND,

and

turn

on

the

power.

[Description]

¢

The

initialization

of

microcomputer

is

as

follows.

¢

AV

position,

DAC

data,

G/A

data,

and

video

chroma

data

adjustment

values

are

taken

as

defaults.

(2)Change

to

adjustment

mode

[Procedure]

Short-circuit

TP2007

to

GND,

and

turn

on

the

power.

Or

short-circuit

TP2008

to

GND,

and

turn

on

the

power.

Or

holding

down

the

[AV

INPUT]

key

and

[MENU]

key,

turn

on

the

main

power,

and

simultaneously

press

the

(inspection

process)

[SELECT

W]

key

and

[VOL—

]

key

to

change

the

mode

to

the

adjustment

mode.

[Description]

The

manual

adjustment

or

adjustment

through

communication

with

the

automatic

machine

is

performed.

(3)Inspection

mode

[Procedure]

Holding

down

the

[AV

INPUT]

key

and

[MENU]

key,

turn

on

the

power.

[Description]

¢

In

the

ordinary

menu

select

“PICTURE”

with

the

[SELECT]

key,

and

decide

with

the

[VOL]

key.

Then

select

“CONTRAST”,

“TINT

(only

NTSC)’,

“COLOR”,

“BLACK

LEVEL”,

“SHARPNESS”,

“RED”

,

and

“BLUE”

with

the

[SELECT]

key,

and

decide

with

the

[VOL]

key.

After

that,

adjust

values

with

the

[VOL]

key.

¢

in

the

ordinary

menu

select

“SOUND?”

with

the

[SELECT]

key,

and

decide

with

the

[VOL]

key.

Then,

select

“TREBLE”,

“BASS’,

and

“BALANCE”

with

the

[SELECT]

key,

and

decide

with

the

[VOL]

key.

After

that

adjust

values

witht

he

[VOL]

key.

*

VOLUME,

CONTRAST,

TINT

(only

NTSC),

COLOR,

BLACK

LEVEL,

SHARPNESS,

RED,

BLUE,

TREBLE,

BASS,

and

BALANCE

change

as

follows.

ree

ra

ee

(4)Shipping

setting

mode

[Procedure]

Holding

down

the

[AV

INPUT]

key

and

[MENU]

key,

turn

on

the

main

power,

and

simultaneously

press

the

(inspection

process)

[SELECT

A]

key

and

[VOL+]

key

to

change

the

mode

to

the

adjustment

mode.

[Description]

User

adjustment

and

other

values

are

taken

as

defaults.

If

AV1

is

indicated

as

SETTING

COMPLETE,

setting

has

been

completed.

FOE

ee!

Or

Oe

eR

eT

TES

7

LC-121M2E

LC-150M2E

5-3.

Cancel

of

special

mode

Turn

off

the

main

unit

power.

5-4.

Preparation

adjustment

(1)Use

the

exclusive-use

AC

adapter

or

stable

DC

power

supply.

AC

adapter:

UADP-0181CEN1

DC

power

supply:

12

+

0.5V

5-5.

OSD

menu

indication

and

items

in

case

of

manual

adjustment

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LC-121M2E

LC-150M2E

a

at

a

aa

le

aa

ae

ce

ot

De.

LC-121M2E

LC-150M2E

|

8

|DAC2

ich

DAC

2

2ch

DAC

2

3ch

Gece

mer

|

DAC2

4ch

|

[Dace

Sch

|

[DAC

2

6ch

|

DAC

2

7h

|

DAC?

Bch

|

DAC

2

och

|

[DAC

2

toch

|

DAC?

t1ch_

|

[pace

tzch

5-6.

Service

Adjusting

5-6-1.

Basic

Adjustment

||

Adjustment

Adjusting

conditions

1

|

+B

Adjustment

1.

Connect

the

DC

voltmeter

to

TP1104

-

Model

setup

/

Counter-bias

adjustment

Adjusting

method

1.

Adjust

+B-ADJ

to

5.1V

+

0.05V.

(

DAC

9ch

)

1.

Make

sure

that

M2H

has

been

set.

(Not

setting

M2E)

When

M2H

is

selected,

the

item

settings

are

as

follows.

TUNER

OFF

AUDIO

MULTIPLEX

OFF

BOOSTER

0

SYSTEM

AUTO

COPY

GUARD

ON

CH

MEMORY

OFF

SECAM

ON

MULTI

LANG.

OFF

TIMER

OFF

.

Set

the

AV1

mode

to

set

signal

noninput

state.

2.

Fit

the

specified

adjusting

instrument

to

the

screen

center.

3.

Observe

the

adjusting

instrument

output

on

the

oscilloscope.

1.

Adjust

COM

so as

to

minimize

the

waveform

peak-peak.

(DAC7ch)

NTSC

/

PAL-MOSC

adjustment

.

Input

the

monoscope

pattern

of

NTSC

into

AV1.

1.

Adjust

NTSC/PALM

OSC

so

as

to

get

the

normal

screen.

(DAC8ch)

10

Sharp LC-121M2E User manual

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