technika 32"

[futurespec]

unbranded 32" lcd tv L2M08 MAIN AV BOARD
I HAVE A PROBLEM WITH SOUND
THE SOUND WORKS WHEN TURNED ON AND AFTER 20MINS THE SOUND GOES
NEED DIAGRAM OF THE BOARD AND ANY INFO SO I CAN REPAIR PLEASE

[Caleb]

Re: technika 32"

It sounds like you may have an ic failing. You can try to freeze the chip and see if your sound returns. You might also check the voltage regulators on the main to verify they are outputting the correct voltages, a low voltage could potentially cause the sound to drop out. Several voltage test points can be found across the top of the board in your picture.
ET shows two manuals for Technika 32" tvs HERE

[futurespec]

Re: technika 32"

i cant use the file as i dont know what program to use to open it
where is the ic chip located on the board and you indicate to freeze the chip how would you do that

[notallbad]

Re: technika 32"

The file is just a .PDF document

Adobe reader

Freeze it with ice cubes or just put it in the freezer for an hour, seriously you need freeze spray.

[notallbad]

Re: technika 32"

Why do you have bent, possibly shorting, pins on the CI Card port?

Ha, is this an actual picture of your board?

[Caleb]

Re: technika 32"

You can use canned air held upside down for freeze spray, Notallbad was joking about the ice cubes dont use them. The voltage regulators look like the component above K. Maint. Pyne. sticker above the T in Maint. Audio ic will likely be one of the qfp ics but you will have to find the appropriate schematic or trace back the audio output.

[futurespec]

Re: technika 32"

ive managed to use a small fan and soldered the wires to the av board and its been on for 2hours with sound fully working

[tom66]

Re: technika 32"

Which component did you direct air at?

[futurespec]

Re: technika 32"

where the tv card goes i placed a fan there.
about 4 ic chips or more in that area is cooled with the fan

[tom66]

Re: technika 32"

You really need to narrow it down.
You can buy canned air which also acts as freeze spray from Poundland in the UK.

[futurespec]

Re: technika 32"

need to have a diagram or schematics to help me

[futurespec]

Re: technika 32"

is there anywhere i can get hold of technika or unbranded l2m08(03) av board

[tom66]

Re: technika 32"

Good luck with that, I doubt one was ever released, these are intended as throw away TVs.

[futurespec]

Re: technika 32"

ive got hold of a complete set of boards speekers and cables for the technika 32"
www.bixreclamation.co.uk
technika lcd32-600 32" lcd tv dealer service repair kit
all fully working now