cute.bandar
Cyborg Agent
I opened up my old 40" videocon TV that had broken last year. My idea was to try and repair it.
About : Most 'Led' Tvs are LCD TV backlit with LED lights. True LED I think are only OLED, where each pixel is an LED.
Parts of a LCD/LED TV:
1. Power supply board - Power Cord goes here. Convert AC to DC, supply different voltages etc. Sometimes there is a separate invertor board to supply power to the LED lights.
3. MainBoard - Has all the ports, processing signal etc. Has various connections to buttons, and IR receiver for remote.
4. TCON board - Signal goes from mainboard to TCON . Don't really know what this does.
5. LCD layer - From TCON there are 2-6 'ribbon' like cables that go 'into' the LCD layer. These ribbons are basically circuits. FYI there is a small chip on these circuits.
Between the LED lights and LCD there are various sheets to diffuse/spread and filter the led light.
Shit picture:*i.imgur.com/k63L1PO.jpg
The point: I googled model numbers of components. The power board, mainboard and TCON board are all generic chinese components! Found on aliexpress. LCD layer would probably be generic as well. So this TV is no different from buying an 'assembled' TV from olx. Maybe most cheap TV's are merely assembled. Maybe not a surprise for most of you.. but I bought Videocon thinking 'Indian' brand, not generic chinese. Which in hindsight was silly.
About : Most 'Led' Tvs are LCD TV backlit with LED lights. True LED I think are only OLED, where each pixel is an LED.
Parts of a LCD/LED TV:
1. Power supply board - Power Cord goes here. Convert AC to DC, supply different voltages etc. Sometimes there is a separate invertor board to supply power to the LED lights.
3. MainBoard - Has all the ports, processing signal etc. Has various connections to buttons, and IR receiver for remote.
4. TCON board - Signal goes from mainboard to TCON . Don't really know what this does.
5. LCD layer - From TCON there are 2-6 'ribbon' like cables that go 'into' the LCD layer. These ribbons are basically circuits. FYI there is a small chip on these circuits.
Between the LED lights and LCD there are various sheets to diffuse/spread and filter the led light.
Shit picture:*i.imgur.com/k63L1PO.jpg
The point: I googled model numbers of components. The power board, mainboard and TCON board are all generic chinese components! Found on aliexpress. LCD layer would probably be generic as well. So this TV is no different from buying an 'assembled' TV from olx. Maybe most cheap TV's are merely assembled. Maybe not a surprise for most of you.. but I bought Videocon thinking 'Indian' brand, not generic chinese. Which in hindsight was silly.
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