Question about Televison & Video

1 Answer

MAG 3200 Lcd TV I installed main board on unit and unit does nothing when i push power. Just the red light stays on.also replaced t-con board along with it. At least with the old main board when i would push power button red light would turn blue and my back lights would come on but i was unable to turn it off from the power button.Any solutions

Posted by on

  • Rey Garza Aug 30, 2010

    thanks . the main board was defective.The old board would at least turn it on



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 160 Answers

Normally T-Con board have nothing to do with powering up of TV. It's only affecting image when TV is on. So we can discard T-Con as a suspect for now.
Remove "new" main board and install the old one. If TV powering up and back light comes on - you've purchased defective Main Board and you should return it for exchange or refund. It happens all the time, boards that they sell most of the time are refurbished and sometime nothing was done and they send defective board to the other customer by error.
In case that TV is not powering up even with the old main board - look for something that you have done during replacement (like forgotten or overlooked connection, broken/bended pins etc.).
Good luck!

Posted on Aug 28, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a LG 50LN5600 LED Smart TV w/sound no/pic Have replaced the power supply board and t-con board. Main board only one left and research says that this would not be a main board prob. Any help?

If the LCD panel back light is not lit you have a bad LCD panel. If the back light stays lit when the set is turned on then you almost certainly have a bad main board since you have already replaced the power supply and T-con.

Aug 17, 2015 | LG Televison & Video

1 Answer

SansuiHDLCD4650 wont power up, red light indicating power to tv is lit.

The problem is in the Main board that also incorporates the T-con unit. Pull the main board out. Find IC 6201. Next to the two legs of IC6201, find Capacitor location C6212. Wick out C6212. Do not replace C6212. Your TV will come back to life! Thanks for asking, Matt of Martins TV Repair.

Aug 27, 2014 | Sansui HDLCD4650 LCD TV 46" - COWRIND...

1 Answer

No Pitcher

its the t-con board if the backlight is coming on and there is sound then the t-con board is faulty. this is the board on the back of the screen has a cable going to it from the main av board. replace with same part number only. this has to match the screen.

Jul 15, 2017 | Sony BRAVIA® KDL46SL140/91 46 in. HDTV LCD...

1 Answer

Samsung 52" LN52C530

The problem lies in the main board.

Jan 07, 2014 | Samsung LN52C530 52" LCD TV

4 Answers

Mag 3200 lcd tv wont power on. when you push power blue light comes on, backlights come on but no picture or sound, and when i try to power off it wont power off i have to disconnect power.

Re:"Mag 3200 lcd tv wont power on.when you push power blue light comes on, backlights"

That means that the monitor is in forced standby. This happens when an internal fault is detected. The state is called protection or protect mode.

Try first leaving the unit disconnected from power for 15/20 mins, that will probably not fix the problem, but is a necessary step in troubleshooting. (general indications here Why my TV does not start up and remains in standby.Guidelines are valid for all TV. Under protect mode TV will act in different ways depending on model)

The unit is repaired testing the internal component.

This TV comprises few boards: a Button/IR board, a digital controller board, a PSU, an inverter.

If you are a repairer,testing willl start from PSU, following voltages on main board and testing the inverter.

Parts can be tested following this procedure : A full test ...

the best way to contact an authorized technician is by ringing the number listed on the owners manual. Alternatively try Fixya directory here:Fixya directory- Consumer Products Repair

To get parts try ShopJimmy .



Aug 19, 2010 | iLO 3200 32 in. LCD Television

1 Answer

The red lite goes off when you power the unit up...but stays black....nothing happens....have pluged and unplugged several difference

Good day sir, hi, as I see it, the red light is on stand by, and turning on the TV nothing happens, This could be traced from a failure of the power supply board to the mainboard. This diagnostics should be done by a qualified service personnel and should not be performed by a novice. The process is to locate the problem board, first replace the power supply board, then test, if the board respond then good, but if not, replace the main board which controls the sound, LCD, controls and the likes. replacing the two boards are costly, so I suggest you take it to your dealer for proper advice on your TV. if its under warranty, much better. they will replace the entire tv.

Nov 18, 2009 | TruTech PLV16320 Television

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

256 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74383 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides