Haier HLTDC19 - 19" LCD TV User manual

SERVICE MANUAL
FOR HLTDC19
TFT-LCD TV

Content
CONTENTS -----------------------------------------------------------------------------------------------1
Main Unit Description----------------------------------------------------------------------------------2
Features----------------------------------------------------------------------------------------------------4
Warning and Cautions---------------------------------------------------------------------------------6
Replacement of Memory IC--------------------------------------------------------------------------8
Net Dimension-------------------------------------------------------------------------------------------9
Remote Controller Functions----------------------------------------------------------------------10
ICs function description ----------------------------------------------------------------------------13
Block Diagram------------------------------------------------------------------------------------------21
Trouble Shooting---------------------------------------------------------------------------------------26

Front Panel Controls
Control Panel Function
TV/AV MENU VOL- VOL+ CH- CH+ POWER
2345
1. Power supplyswitch
2.TV/AV PC/COMPONENT/AV/SV/TV/DVD
3. MENU Press to select the main menu
4. VOL- Volume down/ Left orientation to adjust the item inthe OSD
VOL+ Volume up / Right orientation to adjust the item/Press to enter
5. CH- TV channel down / to select the item in the menu
CH+ TV channel up / to select the item in the menu
6. Power indicator
Illuminates red in standby mode, illuminates green when the display is
turned on
7.Remote Sensor
Selects the input signals:
Receives the signals from the remote control
1
6
7

Connection Options
The above figure is for reference only,
connections may differ depending upon
the models
DVD
STOP PLAY/PAUSE OPEN/CLOSE
PREW NEXT
DVD insert
VGA Input
Connect to theVGA
15PIN analog output
connector of aPC
display card to use set
as a PC display
DVD/DTV Input
Connect a component
video/audiodevice to
these jacks
Video Input
Connect video output
from an external
device to thisjack
AV/S-VIDEO/
COMPONENT Audio
Input
Connect audio output
from an externaldevice
to these jacks
PC Audio Input
Connect the audio
output from the pc
to the audio input port
Earphone port
Antenna Input
Connect cable or
antenna signals to
the TV, either direc-
tly or through your
cable box.
S-Video Input
Connect S-Video out
from an S-Video device
to the jacks.
ANT IN S-VIDEO VGA IN
PC AUDIO IN AUDIO IN
R L
VIDEO IN
V
Pb
Pr Y
COMPONENT IN
ANT IN S-VIDEO VGA IN
PC AUDIO IN AUDIO IN
R L
VIDEO IN
V
Pb
Pr Y
COMPONENT IN

Features
Model
NO. Functions
HLTDC19
1 TFT SAMSUNG
2 Screen size 19inch
3 Aspect ratio 4:3
4 Resolution 1280×1024
5 Brightness 300cd/m2
6 Contrast(Darkroom) 700:1
7 Response time(ms) 8
8 Color system NTSC
9 NO. of preset channels 181
10 Picture mode Yes
11 Angel of view H:150°/ V:135°
12 Color display 16,777,216
13 Color level16
14 OSD languages ENGLISH,FRENCH, SPANISH
15 AV stereo Yes
16 Surrounding sound No
17 Audio system M
18 Bass Yes
19 Balance Yes
20 Sound mode Yes
21 Mute Yes
22 BTSC Yes
23 AV input Yes
24 AV output No
25 Y CB CR Yes
26 Y PB PR Yes
27 S-video jack Yes
28 TV in Yes

Model
NO. Functions
HLTDC19
29
D-SUB jack Yes
30 DVI socket
No
31 SCART socket
No
32 Ear-Phone Out
Yes
33 CCD,V-CHIP
Yes
34 Semitransparent menu
Yes
35 ZOOM
No
36 16:9 mode
No
37 Child Lock
Yes
38 Quick View
Yes
39 NO. of built-in speakers
2
40 Audio output power(Built-in)(W)
2*1.5
41 Total power input（W）
80
42 Voltage range（V）
120
43 Power frequency（Hz）
60
44 Time of sleep timer(MINS)
240
45 Approval
UL
46 Suitable market
U.S.

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.
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.
!
Minimum
10c
20c
10c 5cm

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.
!
!
!
!
!

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.CHECK MEMORY IC
(1) Power off
Unplug the ~120V power plug from ~120V 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 ~120V power plug into ~120V 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 key “CCD”,"MTS/SAP”,"CCD”,"DISPLAY” on the Remote control
unit continuously for factory used.
2)The “Factory mode” 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 [CH-]&[CH+] keys and set value by [VOL-]&[VOL+] keys.
4) Press “EXIT” key and return to the normal screen.

Remote Control Key Functions
When using the remote control, aim it
towards the remotesensor on theTV
Stand By
DVD Open/close
Scan
TV/DVD
Mute
Call Screen Display
Program Number
TV Sleep button
Volume/Channel Selection
MENU
DVD 10+
DVD STOP
DVD SUBTITLE
DVD SETUP
DVD PAUSE/STEP
DVD FAST REVERSE
DVD FAST FORWARD
DVD MENU
DVD NEXT
DVD PREVIOUS
DVD REPEAT
DVD PLAY/ENTER
DVD A-B REPEAT
DVD Cursor Move button
DVD SLOW
DVD ANGLE
DVD SEARCH
DVD TITLE/PBC
DVD PROGRAM
DVD CALL
TV/AV and input selection
Return to Previous Channel
CCD ( closed caption) On / Off
Adjust Picture Mode
Exit On Screen Display
Mode
Zoom Function
Select MONO,STEREO, SAP in NTSC system
DVD AUDIO
Buttons on the remote control
UP
DOWN
LEFT RIGHT
POWER TV/DVD OPEN/CLOSE
SCAN RECALL DISPLAY MUTE
1234
5678
9900
CCD
P.STD
CH+
CH-
VOL
-
VOL
+
MENU
EXIT 10+
STOP SETUP PAUSE/STEP
REV FWD .PREV NEXT
D.MENU REPEAT A-B
PLAY/ENTER SLOW
ANGLE TITLE/PBC SEARCH
ZOOM D.CALL
PROGRAM
SUBTITLE
MTS/SAP
TV/AV
SLEEP
AUDIO