Haier L20AV6-A0 Manuel utilisateur

SERVICE MENUAL

FOR LCD TV 15”/17”/20”

TFT-LCD TV/MONITOR

Haier Group

Content

1 CONTENTS ----------------------------------------------------------------------------

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

3 Features---------------------------------------------------------------------------------

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

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

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

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

8 Principle ICS ---------------------------------------------------------------------

9 Block Diagram------------------------------------------------------------------------

10 Exploded View------------------------------------------------------------------------

11 List of Parts----------------------------------------------------------------------------

12 Trouble Shooting--------------------------------------------------------------------

2．Main Unit Description

Control Panel Function

1. MENU Press to select the main menu

2. VOL- Volume down / Left orientation to adjust the item

3. VOL+ Volume up / Right orientation to adjust the item/Press to enter the submenu.

4. PRO- TV channel down / to select the item in the menu

5. PRO+ TV channel up / to select the item in the menu

6.TV/AV Select the input signals: PC-RGB/AV/S-VIDEO/TV

7.Remote Sensor Receiving remote controller sends the infrared remotesignal.

8. Power supply switch

9. Power indicator

Illuminates red in standby mode, illuminates green when the display is turned on.

3.Features

Model

No. Functions L20AV6-A0 L17LV6-A1 L15SV6-A0

1 TFT LG LG SVA

2 Screen size 20inch 17inch 15inch

3 Aspect ratio 4:3 15:9 5:4

4 Resolution 640×480 1280×768 1280×1024

5 Brightness 350cd/m2 450cd/m2 250cd/m2

6 Contrast(Darkroom) 450:1 400:1 400:1

7 Response time(ms) 25 25 16

8 Color system PAL/SECAM PAL/SECAM PAL/SECAM

9 NO.of preset channels 100 100 100

10 Picture mode Yes Yes Yes

11 Angel of view 176o176o120o

12 Color display 16777216 16777216 16777216

13 Color level 16 16 16

14 OSD languages 8 8 8

15 AV stereo Yes Yes Yes

16 Surrounding sound No No No

17 Audio system DK/BG/I/L/L’ DK/BG/I/L/L’ DK/BG/I/L/L’

18 Bass No No No

19 Balance Yes Yes Yes

20 Sound mode Yes Yes Yes

21 Mute Yes Yes Yes

22 NICAM Yes Yes Yes

23 AV input Yes Yes Yes

24 AV output NO NO NO

25 Y CB CR NO NO NO

26 Y PB PR NO NO NO

27 S-video jack Yes NO NO

Model

No. Functions L20AV6-A0 L17LV6-A1 L15SV6-A0

28 TV in Yes Yes Yes

29 D-SUB jack Yes Yes Yes

30 DVI socket NO NO NO

31 SCARTsocket Yes Yes Yes

32 Ear-Phone Out Yes Yes Yes

33 TELETEXT Yes Yes Yes

34 Semitransparent menu Yes Yes Yes

35 ZOOM NO NO NO

36 16:9 mode NO NO NO

37 Child Lock NO NO NO

38 Quick View Yes Yes Yes

39 C NO NO NO

40 PIP NO NO NO

41 NO. of built-in speakers 2 2 2

42 NO. of outer speakers NO NO NO

43 Audio output

power(Built-in)(W) 2*1.5 2*1.5 2*1.5

44 Audio output

power(outer)(W) 2*1.5 2*1.5 2*1.5

45 Total power input（W）60 60 60

46 Voltage range（V）100-240 100-240 100-240

47 Power frequency（Hz）50-60 50-60 50-60

48 Time of sleep

timer(MINS) 240 240 240

49 Net weight(KG)

50 Gross weight(KG)

51 Net dimension(MM)

52 Packaged

dimension(MM)

53 Approval CE CE CE

54 Suitable market EU EU EU

4.Warnings and Cautions

Warning

High voltages are used in the operation of this product.

Do not romove 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.

Minimum

Caution

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.

5.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 “DISPLAY” key, then press colour key “red”,”green”,yellow”,”DISPLAY” on the Remote control

unit continuously for factory used.

2)The “Factory2” will be displayed on the screen,

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

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

4) Press “OK” key and return to the normal screen.

6.Net Dimension

1.L20AV6-A0

2.L17LV6-A1

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