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UMC TP SIS231 PTXXX Boards.

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Turnip:
Hi folks,

Had a couple in recently, marvelling how so much could be accomplished on a board 6 inches square - Power, SSB, Sound, Inverter.

Turned them on - 32 and 39 inch sets to find they were both sort'a stuck either in S/by or with 'Maker's' OSG which cycled off and on again every 30 seconds or so.

First time around I suspected Eeprom so got expensive replacement and fitted it - Same - Don't think bother with the other one, as not now a UMC single board fan.

Wonder how other folks find 'em - Chris.

downunder:

Hi Chris,

Cheap and cheaper - but seem to be the rage at the moment. Don't like them at all as they are virtually unserviceable, which is probably what the manufacturers

want - and fewer parts to keep in stock for a shorter duration. What devious plan will they come up with next?  -  Bruce

Turnip:
Hi Bruce,

Thought as much. Going for the Eeprom, suppliers stated 'If the backlight is cycling don't replace the Eeprom as the CPU will kill it'

Being careful, reprogrammed the original from the replacement to find that instead of being stuck in S/by, backlight came up and cycled on and off every 30 seconds. Undaunted I loaded a blank Eeprom with new data - fitted it and got the same outcome.

Haven't yet tried 'cooking' the boards, as seems no other option but 'Oil Drum Row'

My second set also had the 30 second backlight cycling, and they're both maybe a couple of years old - Give me Vestel any day - Chris.

downunder:

Hi Chris,

This TV doesn't perchance have a plastic-backed panel.               Bruce

Turnip:
Hi Bruce,

In some ways it's rather nifty where the rear of the screen is Blackened metal and also the back of the set. The 'everything panel' fits in a plastic box at the bottom which also contains some rather small speakers. Another plastic box houses the DVD player, keeping it mostly free from dust which could be useful if the set lasted much longer than the year's guarantee.

Remember a while ago buying a full set of Led strings (before LG Leds were 10p each) where the back panel was Black plastic - Gather Black is quite good dissipating heat before it catches fire.

As you say - Hate to think what's next up the sleeve of our Chinese brothers - Chris.

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