Beko LM CHASSIS Manual de usuario

SERVICE MANUAL

LM CHASSIS

CONTENTS PAGE

Safety Instructions 3

Technical Specifications 4

Features 5

Inputs/Outputs Diagram 6

Remote Control 7

Set Apperance 8

Service Adjustments 9

Block Diagram 12

Power Supply Diagram 13

Data Sheet VCT4993 14

Data Sheet MST6181 16

Data Sheet MTV512 24

Data Sheet TVP5150A 26

Parts List 32

Circuit Diagram Attached

SAFETY PRECAUTIONS

GENERAL GUIDELINES

1. Always use the manufacturer’s replacement safety

components. The critical safety components marked

with on the schematics diagrams should not be

by other substitutes. Other substitute may create the

electrical shock , fire or other hazards. Take

attention to replace the spacers with the originals.

Furthermore where a short circuit has occurred ,

replace those components that indicate evidence of

overheating.

2. After servicing , see that all the protective devices

such as insulation barriers, insulation papers, shields

and isolation R-C combinations are correctly

installed.

3. When the receiver is not being used for a long time

of period of time , unplug the power cord of the

Adaptor from the AC outlet.

Color TFT LCD Module is very sensitive

both electrically and physically.Users,

therefore, are requested to follow the

“Guidance of handling color TFT LCD

Module”on the followings.

1-Be careful not to make scratch on the

polarizer.

Surface of polarizer is soft and can be physically

damaged easily.

Please do not touch, push or rub polarizer surface

with materials over HB hardness.

2 -Keep clean the surface.

Please wear rubber glove when touch the surface of

LCD screen. Please use soft and anti-static material

as cleaner.

3 -Keep out of water.

Water on/in the LCD may cause electrical short or

corrosion. Please wipe out dry or water carefully.

4 -Prevent swift Temperature &

Humidity change.

Instantaneous temperature and/or humiditychange

can make dew or ice which cause nonconformance

such as malfunction.

5 High temperature & high humidity

reduce the life-time.

LCD is not proper to be used at high temperature

and high humidity. Please keep specified

temperature and humidity condition.

6 -Keep out of Corrosive Gas.

Corrosive gas effect the polarizer and the circuit

chemically and cause defects accordingly.

7 -Electrostatic discharge can make

Damage

There are electro-static sensitive components such

as CMOS in LCD Module. Please earth human

body when handle the LCD.In addition, please do

not touch the interface connector pin with bare.

8 -Do not operate for a long time under

the same pattern

Operating LCD for a long time under the same

pattern can cause image persistence and can

damage it. Please follow following guidance.

1. Turn the power off when do not use.

2. Change the pattern periodically.

Technical specifications chart

General technical specifications

Power supply

AC: ............................................................................230V~50 Hz

Program memory: ...................................................100

RF Antenna input: ...................................................75 Ohm (Co-axial)

Loudspeaker impedance: ......................................4 Ohm

Sound systems:.......................................................Mono/Stereo/Nicam

Batteries:..................................................................2xUM - 4, IEC R03 or AAA 1.5V

Received channels:.................................................VHF (Band I channel 2-4)

..................................................................................VHF (Band III channel 5-12)

..................................................................................UHF (Channel 21-69)

..................................................................................Cable TV (S1-S20/S21-S41)

Received broadcasting systems............................PAL BG

PAL SECAM BG

PAL SECAM BG DK/DK’

PAL SECAM BG LL’

PAL I

27” 16:9

active matrix TFT

2x7 W

120 W

1 W

Picture tube

size/type

Sound outlet

power (10% THD)

Power

consumption

Stand-by Power

consumption

Note: Your television has been manufactured in accordance with your country by selecting from

among the above mentioned broadcasting systems and this system cannot be changed by the user

except the case described below: In countries where BG/DK and BG/LL’ broadcasts are done (BG

or DK / BG and LL’). For further information, see the settings part about your television.

Your Television

Features

• 27” TFT-LCD WXGA Panel

• Available for cable broadcasts

• 2x7 W Stereo sound

• 12 pages of teletext Feature

• PIP (Picture in Picture) Feature from AV

• Wide angle of vision

• Scart socket, AV Socket and external sound system connection

• S-VHS and Cinch inputs for S-Video connection

• PC connection

• Low energy consumption

•AVL

•ATS

• Programmable power off

• Graphic equalizer

• The feature of sharpness in Colour Transitions (CTI)

• Sharpness feature and picture resolution (LTI) in the black-white transitions

• A clear Picture made possible by the Digital Comb Filter

• On screen viewing of all settings, program numbers and all the processes

• Manual Fine Tuning

• 100 Program memory

• Infrared Remote Control equipped all the functions

• Child Lock

• Feature of viewing the NTSC broadcast to be entered via Scart

Easy performance of the processes via the advanced menu system. Ability to choose 26 different

menu languages.

• HDMI feature

16. Video input CINCH connector

17. Sound input CINCH connector (Left/L)

18. Sound input CINCH connector (Right/R)

19. SPDIF Digital audio output

20. Sound output (Left/L)

21. Sound output (Right/R)

22. Antenna input

23. Component sound input (L)

24. Component sound input (R)

25. Component video input (Y)

26. Component video input (Pb)

27. Component video input (Pr)

28. HDMI

29. VGA (PC connection input)

30. PC sound input

Note:

• Please do not use the video RCA and S-Video connection simultaneously, in that case, these

two devices might influence the picture quality of one another.

• RGB offers the best picture quality over the Scart.

1. Standby status indicator

2. Network power on/off button

3. Remote control receiver

4. Volume turn-down button

5. Volume enhancement button

6. Menu Button

7. Source selection

8. Program decrease button

9. Program increase button

10. Speaker

11. Scart 1

12. Scart 2

13. Power supply input

14. Headphones output

15. S-VHS connector

PC-

AV-OUT

LV ANT IN

DVI-D HDMI PC-DVI

AUDIO-IN

RLRYPbPr

COMPONENT

VIDEOINPUT

SCART1SCART 2RLV

S-VHS

AUDIO

AV-3

S-VHS V L R

AV3

567 8 9

ANT IN

COMPONENT

VIDEO INPUT

L PC-INR Y Pb Pr PC

AUDIO-IN

SPDIF L

AUDIO-OUT

HDMI

AUDIO

20 22 25 28 29 3019 21 23 24 26 27

Remote Control

PIP SEL. PIP POS. PIP SIZE

AV PC TV

123

456

789

ZOOM

0SWAP

PR- PR+

VOL- VOL+

OK/

FREEZE

TEXT/

MIX

PAT

1. Picture Format selection button ( )

2. Temporary sound mute (Mute) button ()

3. Equalizer selection button ()

4. PIP Position selection button

5. PIP/PAP On-Off button

6. AV modes selection menu button

7. Numeric buttons

8. ZOOM mode selection button

9. Program down button ()

10. Upward movement button()(Menus)

11. Volume turn-down button ()

12. Left movement button ()(Menu)

13. Confirmation(OK) and Temporary picture

freeze button (Freeze) ( )

14. Info / Txt index page button ()

15. Downward movement button ()(Menus)

16. Txt Question/Answer button (Reveal) ()

17. Red teletext button ()

18. Teletext page enlarge button (Double) ()

19. Blue Teletext button ()

20. Teletext / Mix selection buttons ()

21. UPDATE Button/Teletext time ()

22. Yellow teletext button ()

23. Stand-by On/Off button ()

24. Picture Mode selection button ()

25. PAT (Picture and Teletext) Mode

Power On-Off button

26. PIP size selection button

27. PC mode access button

28. PC mode access button

29. Final program selection button (SWAP)

()

30. Program forward selection button ()

31. Audio turn up button ()

32. Right movement button ()(Menus)

33. MENU button

34. Txt Stop button (Hold) ( )

35. Green teletext button ()

36. Sub page button (SUB PAGE) ()

SET APPERANCE

INVERTOR(BUILT IN PANEL) MAIN CHASSIS POWER SUPPLY BOARD

LM SERVICE MODE

1. Activating the Service Menu

When the menu is on the screen press ‘9’, ‘3’, ’0’, ’1’ on the remote controller. This will activate

the service menu.

2. Service Mode Options

There are 6 submenus in this mode:

OPTIONS0, OPTIONS1, SOUND OPTIONS,IF SETTINGS, DIMMING, ADJUSTMENTS

2.1 OPTIONS0

STANDBY CUSTOME (Customer), FACTORY

TEXT Teletext Type : FAST (Fasttext), FAST TOP (Fastext and Toptext)

TEXT TBL AUTO : Selects the table according to the selected menu language

WEST: English-French-German-Turkish-Spanish-Italian-Finnish-Swedish

Norwegian, Danish

EAST : Polish-French-Hungarian-Czech-German-Sovenian-Italian-Romanian

GREE : WEST + Greek

CYRL : English-Russian-German-Czech-Estonian-Ukrainian-Letvian

ARAB : West + Arabian

FARS : West + Persian

HEBR : West + Hebrew

LANGUAGE A: English-German-French-Italian-Spanish-Portuguese-Greek-Turkish-Dutch-Swedish-

Danish-Norwegian-Finnish-Slovenian-Polish-Hungarian-Russian-Hebrew-Romanian-

Croatian-Czech-Slovak-Albanian-Bulgarian- Macedonian-Serbian

B: English-German-French-Italian-Spanish-Portuguese-Greek-Turkish-Dutch-Swedish-

Danish-Norwegian-Finnish-Slovenian-Polish-Hungarian-Russian-Romanian-Croatian-

Czech-Slovak-Albanian-Bulgarian- Macedonian-Arabic-Persian

PANEL Selects the software according to the panel name :

26 AU5, 32 AU3, 26 SS2, 32 SS3, 27 CH5, 32 CH2, 26 LP6,37 LP2, 26

QD2, 32 QD2

PIP NO (PIP via AV is not on), AV (PIP via AV is on)

PLUG PLAY ON (Demo mode), OFF

2.2 OPTIONS1

BLUEBACK ON, OFF

CTI Colour Transient Improvemnet Feature : ON, OFF, MENU

DNR Digital Noise Reduction : ON, OFF, MENU (selection via User Menu)

PROTECTION ON, OFF

PANORAMA AVAIL (On), NAVAIL (Off)

RC UNIT Remote Control Type: 43 Key, 45 key

PAT Picture and Text feature: AVAIL (On, Default), NAVAIL (Off)

HOTEL Simple Hotel TV feature: AVAIL (On), NAVAIL (Off)

HOTEL VOL Maximum sound level for Hotel Mode

2.3 SOUND OPTIONS

BG EUROPE, NEWZ (New Zelland) AUST (Australia), NAVAIL (no BG)

DK AVAIL, NAVAIL

L/L AVAIL, NAVAIL

DOLBY AVAIL, NAVAIL

BASS OPT NONE (bass is not activated), DYN (Dinamic bass is activated),

SUBW (Subwoofer feature is on)

HEADPHONE AVAIL, NAVAIL

CARRI MUTE MSP (for all markets except Turkey), MICRO (for Turkey)

2.4 IF SETTINGS

TUNER PS DA5, THOMSON, TEMIC, PS D44, ALPS, PHILIPS

VHF III UHF AGC adjustment is 5 for this frequancy band

VHF I AGC adjustment is 5 for this frequancy band

AGC Method AGC adjustment method: FIXED, SYNC&PW, SYNC, S&PW&PD (Default)

SECAM MTD Secam decoding method : OLD, NEW (default)

2.5 DIMMING

No adjustment will be made in this menu for service purposes. Default value is 0.

2.6 ADJUSTMENTS

No adjustment will be made in this menu for service purposes. Default values are given below:

VCTI BLE BLE MODE 3

BLE GAIN 2

BLE TILT 8

BLE STATIC 7

FAC LTI LTI CORING 0

LTI GAIN 0

SLL SUCARR SLLTHDV 6

SUBCARIIER 19

LUMA DELAY DLY PAL 7

DLY SECAM 10

DLY NTSC 9

SCART RGB BRI -14

CONT 47

CB SAT 50

CR SAT 50

TINT 0

RGAIN 34

GGAIN 33

BGAIN 35

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