REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday, 4 January 2020

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 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)
Posted By: FRANK at 13:43
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