Technika LCD 26 207 Colour fault on right hand side of screen

[Jon Templeman]

As you can see from the pictures, the whites are being displayed as pinks in this section of the screen

Any help would be greatly appreciated

TIA

Jon

ps Here are a couple of links to videos of the fault

Technika LCD26 207 Video 1
http://www.youtube.com/watch?v=y_iNKKjXjDQ

Technika LCD26 207 Video 2
http://www.youtube.com/watch?v=IOKr4zYMITE

[Village Electronics]

Re: Technika LCD 26 207 Colour fault on right hand side of screen

As you can see from the pictures, the whites are being displayed as pinks in this section of the screen

Any help would be greatly appreciated

TIA

Jon

ps Here are a couple of links to videos of the fault

Technika LCD26 207 Video 1
http://www.youtube.com/watch?v=y_iNKKjXjDQ

Technika LCD26 207 Video 2
http://www.youtube.com/watch?v=IOKr4zYMITE

This is a defective LCD panel.

[truep]

Re: Technika LCD 26 207 Colour fault on right hand side of screen

Could also be a defective tcon board or a bad connection between the tcon and the panel.
It looks like it's in about 1/4 of the screen. Mant TCON boards have 4 connectors going to the panel. I would first check the connections. There is a small tab that runs across the connector that must be popped up to remove the cable (they are delicate). remove the dables and clean the cable bare side GENTLY with a pencil eracer. You might also try replacing the tecon board. The tecon board is usually under a shield at the top of the panel

[Jon Templeman]

Re: Technika LCD 26 207 Colour fault on right hand side of screen

Hello and thanks to you both, Village electronics and truep, for your replies.

I will have a go at truep's suggestion and update the forum with the results

Thanks again, best regards,

Jon

[Jon Templeman]

Re: Technika LCD 26 207 Colour fault on right hand side of screen

Could also be a defective tcon board or a bad connection between the tcon and the panel.
It looks like it's in about 1/4 of the screen. Mant TCON boards have 4 connectors going to the panel. I would first check the connections. There is a small tab that runs across the connector that must be popped up to remove the cable (they are delicate). remove the dables and clean the cable bare side GENTLY with a pencil eracer. You might also try replacing the tecon board. The tecon board is usually under a shield at the top of the panel

Hello Guys,
I found the TCON board - Pictures attached, correct me if I am wrong - And I am having difficulty removing the cable, any suggestions please?

The cable that went into the silver connector came out no problem.

Thanks in advance,

Jon

[PlainBill]

Re: Technika LCD 26 207 Colour fault on right hand side of screen

Hello Guys,
I found the TCON board - Pictures attached, correct me if I am wrong - And I am having difficulty removing the cable, any suggestions please?

The cable that went into the silver connector came out no problem.

Thanks in advance,

Jon

This might be a latching connector. One part will lift up, then the cable will slide out. Don't force it!!! Pictures from several angles would help.

PlainBill

[Village Electronics]

Re: Technika LCD 26 207 Colour fault on right hand side of screen

Hello Guys,
I found the TCON board - Pictures attached, correct me if I am wrong - And I am having difficulty removing the cable, any suggestions please?

The cable that went into the silver connector came out no problem.

Thanks in advance,

Jon

Note the black line across the blue portion of the ribbon cable. This is the insertion depth indicator. Just below that line there is a hinged latch. That will pull up and release the cable.

Note: In the other picture there is a PC board permanently connected to the LCD panel. There are 4 ribbon cables running from that board to the panel. Imagine a matrix of cells feed by each ribbon to the cells. That matrix is not getting green control signals from the electronics or ribbon that feeds it. It could be the ribbon that has come apart from the panel. It could be a failure of the electronics on the PC board. Neither is repairable and the problem will continue.

[Jon Templeman]

Re: Technika LCD 26 207 Colour fault on right hand side of screen

Village Electronics, you are correct, there is a fault / break in the cable (The one in the red box in the picture) leading to the LCD panel.

I noticed that when pressing the cable the fault came and went, so done a bodge job and managed to get the TV working again.

Not perfect but it will do :-)

Thanks for all the help guys,

Jon

http://www.youtube.com/watch?v=AdyCW7_qWZ8