Hyundai H-LCD2004 Manuale utente

Service Manual

LCD TV

H-LCD2004

rev. 1.03

Include: 2006-01-30

HYUNDAI Electronics Service Support Team RUS

CONTENTS

1 CONTENTS ----------------------------------------------------------------------------2

2Main Unit Description---------------------------------------------------------------4

3Features---------------------------------------------------------------------------------6

4Warning and Cautions--------------------------------------------------------------7

5Replacement of Memory IC-------------------------------------------------------9

6Net Dimension-------------------------------------------------------------------------9

7Remote Controller Functions----------------------------------------------------10

8BUS Control Adjustment -----------------------------------------------------11

9Principle ICS ---------------------------------------------------------------------14

10Block Diagram------------------------------------------------------------------------18

11Exploded View------------------------------------------------------------------------27

12List of Parts----------------------------------------------------------------------------28

13Trouble Shooting--------------------------------------------------------------------29

2.Main Unit Description

Model Model

No. Functions L20L6A No. Functions L20L6A

1 TFT LG.PHILIPS 28 TV in Yes

2 Screen size(mm×mm) 20 inch 29 D-SUB jack Yes

3 Aspect ratio 4:3 30 DVI socket No

4 Resolution 640×480 31 SCART jack Yes

5 Brightness 450cd/m2 32 Ear-Phone Out Yes

6 Contrast(Darkroom) 350:1 33 Teletext Yes

7 Response time(ms) 16 34 Semitransparent menu Yes

8 Color system PAL/SECAM 35 ZOOM No

9 Audio system DK/BG/I 36 16:9 mode No

10 NO.of preset channels 200 37 Child Lock Yes

11 Angel of view 176o 38 Quick View Yes

12 Color display 16777216 39 On/Off Time Yes

13 Color level 16 40 PIP No

14 OSD languages 8 41 NO. of built-in speakers 2

15 AV stereo Yes 42 NO. of outer speakers No

16 Surrounding sound No 43 Audio output power(Built-in)(W) 1.5W×2

17 Audio system DK/BG/I 44 Audio output power(outer)(W) No

18 Bass Yes 45 Total power input（W）60W

19 Balance Yes 46 Voltage range（V）AC220V

20 Sound mode Yes 47 Power frequency（Hz）50~60Hz

21 NICAM Yes 48 Time of sleep timer(MINS) 240Min

22 Mute Yes 49 Net weight(KG) 9.3

23 AV input Yes 50 Gross weight(KG) 12.5

24 AV output No 51 Net dimension(MM) 550×165×44

25 Y CbCr No 52 Packaged dimension(CM) 62×25×54

26 Y PBPRNo 53 Approval CE

27 S-video jack Yes 54 Suitable market Europe

Features

4. Warnings and Cautions

Warning

High voltages are used in the operation of this product.

Do not remote the cabinet back from your set. Refer

servicing to qualified service personnel.

Warning

To prevent fire or electrical shock hazard, Do not expose

the main unit to rain or moisture.

Warning

Do not drop or push objects into the television cabinet slots or

openings. Never spill any kind of liquid on the television

receiver.

Caution

Minimum

If the television is to be built into a

compartment or similarly enclosed, the

minimum distances must be maintained.

Heat build-up can reduce the service life

of your television, and can also be

dangerous.

10c 5cm

20c

10c

Caution

Never stand on, lean on, push suddenly the product or its

stand. You should pay special attention to children to children.

Caution

Do not place the main unit on an unstable cart stand, shelf or

table. Serious injury to an individual, and damage to the

television, may result if it should fall.

Caution

When the product is not used for an extended period of time, it

is advisable to disconnect the AC power cord from the AC

outlet.

Caution

Avoid exposing the main unit to direct sunlight and other

source of the heat. Do not stand the television receiver

directly on other produces which give off heat. E. g. video

cassette players,Audio amplifiers. Do not block the ventilation

holes in the back cover. Ventilation is essential to prevent

failure of electrical component. Do not squash power supply

cord under the main unit.

Caution

The LCD panel used in this product is made of glass.

Therefore, it can break when the product is dropped or

applied with impact. Be careful not to be injured by

broken glass pieces in case the LCD panel breaks.

6. REPLACEMENT OF MEMORY IC

1. MEMORY IC.

This LCD TV uses memory IC. In the memory IC are memorized data for correctly operating the video and

sound circuits. When replacing memory IC, be sure to use IC written with the initial value of data.

2. PROCEDURE FOR REPLACING MEMORY IC

(1) Power off

Unplug the +12V power plug from +12V power socket.

(2) Replace IC

Be sure to use memory IC written with the initial data values or blank memory IC.

(3) Power On

Plug the +12V power plug into +12V power socket. (If memory IC is blank, the program will take 25s to

initial memory IC.)

(4) Check and set SYSTEM default value:

1) Press “Menu” key into “SOUND” menu, then press digital key “6”,”4”,”8”,”3” on the Remote control

unit continuously for factory used.

2)The “M” will be displayed on the screen.

3)Press digital key, (Mkey) and corresponding on-screen display will be appeared.

4) Check the setting value of the SYSTEM default value of Table below. If the vale is different, select

items by [CH+]/[CH-] keys and set value by [VOL+]/[VOL-] keys.

5) Press “STANDBY” key again and return to the normal screen.

7. Net Dimension

8. Remote Controller Functions

TV/AV Select

(Ref; P7.)

Sound Volume

Up/Down

（Ref; P6）

Power/Standby

(Ref; P6)

Program Up/Down

(Ref.P6)

Mute

(Ref.P7.)

Child Lock

(Ref.P8)

Call

(Ref.P7.)

Direct Access Numeric

Keys

(Ref.P6)

Quick View

(Ref.P7)

Picture Effect

(Ref.P8.)

Teletext

(Ref.P11，P12)

TV/AV

TEXT

4 5

1 2

-/--

MIX

SUBCODE CANCEL

TIMER

PICTURE

REVEAL

SOUND

V+

HOLD

V-

P+

P-

Sound Effect

(Ref.P8.)

Teletext

(Ref.P11)

9. BUS Control Adjustment

To enter BUS control mode, Press “Menu” key into “SOUND” menu, then press digital key “6”,”4”,”8”,”3”

on the Remote control unit continuously for factory used. Press “0” to “9“ key, (Mkey) and corresponding

on-screen display will be appeared.On TV screen “M” will be indicated, this means entered bus control

mode.And press following key, each function will be available.

M1 M2 M3

4 5

1 2

[M1] menu

Receive PAL standard Complete pattern signal.

Adjustment steps

a) Adjust V. SLOPE, to the center horizontal line just appeare from half bottom shadow. And to

avoid the field jitter.

b) Adjust V. SIZE, to avoid the field jitter.

c) Adjust H.SHIFT, to get the picture horizontal center correspond to the panel horizontal center.

d) Adjust OSD.V.POS, to get the OSD vertical position correspond to the panel .

e) Adjust OSD.H.POS, to get the OSD horizontal position correspond to the panel .

f) Adjust MS.V.POS, to get the picture vertical position correspond to the panel.

g) Adjust MS.H.Shift, to get the interlaced mode line shift ,and to to avoid horizontal line jitter.

h) the other is fixed.

Receive NTSC signal and repeat above adjustment.

[M2] menu

AGC Adjustment

a)Receive 60dBμ(1mV)VHcolour bar pattern signal, adjustAGC value,(voltage from high to low), to noise

reduce gradually and just disappeared point.

b) the other is fixed.

[M4] menu

a) Sub Brightness adjustment.

b) Sub Contrast adjustment.

c) Sub Colour adjustment.

d) Sub Sharpness adjustment.

e) Sub Tint adjustment.

f) Adjust MS B Delimiter, to get the value correspond to the brightness, below the value, adjustable

brightness from UOC, otherwise adjustable brightness from the scaller.

g) Adjust MS B MAX, to limit the maximum adjustable brightness for the scaller.

h) Adjust MS B MIN, to limit the minimum adjustable brightness for the scaller.

i) Adjust MS C Delimiter, to get the value correspond to the contrast, below the value, adjustable contrast

from UOC, otherwise adjustable contrast from the scaller.

j) Adjust MS C MAX, to limit the maximum adjustable contrast for the scaller.

k) Adjust MS C MIN, to limit the minimum adjustable contrast for the scaller.

l) White balance adjustment

Adjust BR COEF, BG COEF,BB COEF, to adjust dim area in white balance.

Adjust CR COEF, CG COEF,CB COEF, to adjust bright area in white balance.

[M7] menu

a) Adjust Standard BRI, Standard BRI, Standard COL, to get state correspond to the standard picture mode.

b) Adjust Sharp BRI, Sharp BRI, Sharp COL, to get state correspond to the dynamic picture mode.

C) Adjust Soft BRI, Soft BRI, Soft COL, to get state correspond to the soft picture mode.

ICs Default Settings

20”

MI 项目范围预置值 MI 项目范围预置值

M1 50Hz 60Hz M6 OSO 0

V.SLOPE 20 20 AGC SPEED 0

V.SHIFT 32 32 FFI 0

V.SIZE 16 16 FSL 0

V.SC 32 32 FMWS 1

H.SHIFT 47 56 PH2 0

OSD.V.POS 16 8 RPO 1

OSD.H.POS 28 23 NTSC MATRIX USA

MS.H.SHIFT 1 1

MS.V.POS 47 44 M7 LOGO OPTION 0

RGB.H.SHIFT 32 LOGO SIZE 0

PROGRAM

NO.

0 LOGO Position 0

M2 AGC 31 LOGO COLOUR 0

WIDE 20 LOGO ---------- 0

ZOOM 63 Standard BRI 60

SPEED

0 Standard CON 70

SHIPPING 0 Standard COL 50

M3 BT 60 SHARP BRI 65

CT 70 SHARP CON 75

SC 0 SHARP COL 65

RB 32 SOFT BRI 55

GB 32 SOFT CON 55

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