Haier L37V6-A8K User manual

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L37V6-A8K
TFT-LCD TV/MONITOR
Service Manual
Haier Group

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Contents
Contents--------------------------------------------------------------------------2
Safety Caution------------------------------------------------------------------ 3
Specification---------------------------------------------------------------------5
Instruction of remote controller---------------------------------------------- 6
Cautions and Notes-------------------------------------------------------------7
Factory menu--------------------------------------------------------------------9
Connection sketch-------------------------------------------------------------13
Signal flowing chart-----------------------------------------------------------14
Trouble shooting guide--------------------------------------------------------16
BOM List------------------------------------------------------------------------17
Circuit diagram------------------------------------------------------------------41

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Safety caution
Warning
To avoid fire or electric hazards,never place your television receiver in an
area with heavy moisture.Attention should be paid to avoid accidental
scratches or impacts onto the LCD screen.The function of sound may be
lost and the function may be disordered in electrostatic discharge ,they
can be restored by operation of the controls.
Caution
Unauthorized disassembly of this product is prohibited.
Power supply
This product requires AC power supply. The voltage value is as per the
information specified on the rating label,which is fixed on the back of the
television set.
Disconnect the televison set with the power source or antenna plug when
it heavily rains with thunderstorm or power supply is interrupted.Do not
tie the electric cables to any other objects to avoid accident damages.
Application area
Do not expose the television set directly to floodlight,sunlight,heavy
humidity,high temperature or thick dusts.Locate the television set in a
well-ventilated area,away from vibration and blockage of ventilation port
on the television rear side.

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Cleaning
Unplug the television set when the LCD screen is to be cleaned.Use soft
fabrics for cleaning the screen and electric cables.If necessary, a piece of
wet but clean soft cloth can be used for cleaning the screen,but never use
any liquid or spray detergent.

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Specification
1、Power equipment
This product requires AC power supply. The voltage value is
as per the information specified on the rating label,which is
fixed on the back of the television set.
2、Power consumption
The power consumption is less than 180 watt which is
marked on the back cover.
3、Ports
Power in、Antenna input、Earphone output 、Video andAudio
input 、S-Video input 、D-SUB input(Use as monitor) 、
YUV(YPbPr/YCbCr) and Audio input、DVI input、Side Video
and Audio input、DVI/PC audio input、USB input
4、Color system: PAL/NTSC/SECAM, Sound system:BG/DK/I/M.
Multi-sound mode and picture mode.

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Instruction of remote controller

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Cautions and Notes
Caution:
1、Don’t close the power supply when the TV set is on,because
it may short the life-span of TV.
2、Before welding PCB turn off the power first, otherwise it may
cause short circuit.
3、Adjustment must be done with correct instructions
NOTE:
1、When the remote controller doesn’s work ,please insure that
there is no obstacle between TV set and the remote
controller.
2、Keep the remote controller away from heat source or high
moisture and avoid impacts to the remote controller.
3、Do not operate the remote controller directly in floodlight or
strong sunlight.
4、When the television temperature is low ,initial pictures might
flicker a bit.
5、Some red,green and blue spots may appear on the screen.
6、When used as a compucter monitor,It is recommended that
television screens with 1024*768 pixel/60Hz.
7、Sometimes the remote controller is out of function.this may be
caused by that the Low Emitting Diode is disturbed by

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daylight lamp or other equipment which transmits infrared.To
solve this problem you can move the TV set away from the
equipment.
8、If the screen displays a static picture for a long time,the screen
will still maintain the static picture if you turn to another
channel.This is decided by the characteristic of liquid crystal.
If you meet this problem,change to another dynamic
picture,12 hours later,this status will disappear.

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Factory menu
Factory menu options
1. To enter factory menu you can follow the steps:
A.Press “MENU”, and the main menu will display on the
screen.
B.Press “DISPLAY” three times continuously, and a red “M” will
display on the top-left corner of the screen.
2. To change to next page, press ”MENU” please.
3. To quit from factory menu, please press”DISPLAY”.
4. Factory menu items:
A. Version informations:
Manufacturer
Version
Date
B. TV/AV position items
H-Position
V-Position
C. White banlance adjusting items:
R_DRV
G_DRV
B_DRV
R_CUT
G_CUT
B_CUT
R_Offset1
G_Offset1
B_Offset1
Backlight
Note:a. There is two separate group parameters you can change:
TV/AV/Svideo/USB and HDTV. Two group parameters are
saved separately. Press “TV/AV” to switch beween the two
groups.
b. In this menu, you can press “-/--/---” to adjust white banlance
automatically. But if you doesn’t like the auto-adjust result,please

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adjust the parameters manually.
D. Brightness and contrast numerical value range adjusting.
Video_Bri_MAX
Video_Bri_MID
Video_Bri_MIN
Video_Con_MAX
Video_Con_MID
Video_Con_MIN
HDTV_Bri_MAX
HDTV_Bri_MID
HDTB_Bri_MIN
HDTV_Con_MAX
HDTV_Con_MID
HDTV_Con_MIN
PC_Bri_MAX
PC_Bri_MID
PC_Bri_MIN
PC _ Con _MAX
PC _ Con _MID
PC _ Con _MIN
E. EEPROM menu
a. Page 3
Index 10
Value 0: DVI channel disable.
1: DVI channel enable.
b. Page 3
Index 9
Value 0: OSD zoom disable
1: OSD zoom enable.
c. Page 3
Index 8
Value 0: Photo channel disable
1: Photo channel enable.
d. Page 4
Index 11
Value 0: Sumsang panel
1:LG.PHILIPSpanel.
F. DEBUG menu
Slave addr
Page
Index
Value
G. Power on status
Power on status 0: When AC power on, the TV set will start up to “TV”