How to access service mode – Haier LE40D3281 LED TV – Service mode settings – Firmware update – Mother board IC descriptions - LCD LED television repair and service

How to enter into Service Mode
1: Press Menu,
2: Input “8893”,
System will be into the factory mode menu when 2 steps above are done. 
How to exit
If you want to exit this factory menu, press the button ”Exit” on the remote.
Measurements and Adjustments
The Main Menu
In factory mode menu,press up/down button to choose the item,press right or OK button to the sub-menu .Press MENU button to go back.

GENERAL SETTING

(1) Init Flash;
(2) Uart Enable:Choose on or off in Uart Enable;
(3) Dbg Message Enable: Choose on or off in Dbg Message Enable;
(4) Test Pattern: Choose the Pattern picture;
(5) Dynamic Contrast: Choose on or off in Dynamic Contrast;
(6) Power On Mode:Choose on or off in Power On Mode;
(7) Mirror Control: Choose on or off in Mirror Control;
(8) Front End Status
(9) Timer Test
(10) SSC
(11) Erase Flash
(12) PQ Advance Debug: Choose on or off in PQ Advance Debug;
(13) Factory remote:Open or close the Factory remote;
(14) Factory CH Export

PICTURE
Adjust the Picture Mode,Picture Curve, White Balance and OverScan in different source.

SOUND
Adjust the values of Sound Mode, Volume Curve,Audio Output and True Volume in different source.
Panel Setting
(1) LVDS Bit Mode: choose the Bit;
(2) LVDS MAP: choose the MAP;
(3) LVDS ODD/Even: choose ODD or Even;
(4) Bcaklight: Adiust the value of backlight;
(5) Reset Panel Setting Date
(6) 6MX0 LVDS Map: choose the 6MX0 LVDS MAP;
(7) 6MX0 Channel: choose the 6MX0 Channel;
(8) 6MX0 Mirror: choose the 6MX0 Mirror;
(9) 6MX0 Demo: choose the 6MX0 Demo;
(10) 6MX0 Update.

Firmware  Update
1. Copy the firmware files to a USB disk on the root directory;
2. Insert the USB disk when the AC power is off;
3. Turn on the AC power in turn to begin;
4. Turn off the AC power until the indicator light fast twinkling;
5. Pull out the USB disk and power on the television.
Note: Do not turn off the TV while it is updating.

Main board ICs

1.Mainchip > MSD3393LU(U1) 
2. Audio Amplifier > TPA3110D2PWPR (UA1)

3.Main Flash Memory > GD25Q32BSIG (UF1)
4.DC/DC convertor 5V-1.8V for MSD3393LU (U1) > LC1117CLTRAD (UL2)
5.voltage convertor 5V to 3.3V_STB  > LC1117CLTR33 (UL1)
6.voltage convertor 5V to 1.15V_STB  > LC3406CB5TR (UD1)
7.voltage convertor 5V to 3V for tuner > LC1117CLTR33 (UT1)
8.Tuner  > SDCL1005CR33JTDF (RFT1)