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Iiyama monitor PL2483H - No LED Backlight.

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Turnip:
Hi Bruce,

Thanks for the zener tip, was fortunate this time as noticed L801 (between the 2 electros in the LED supply was dry jointed, soldered by only one pin using pressure to make contact on the other)

Recently bought 'Idiots guide to Latin' and in retirement might well read it - Chris.

downunder:
Hi Chris,

Statistics suggest the average family has 1.5 children.....might explain why there are so many halfwits in the world.

Bruce

(reference: The Wizard of Id)

Turnip:
Hi Bruce,

Will go check that one. Knew the one with 'Toto' where self confidence wins out despite the wicked witch of the West - Wonder why 'West', as West is sort'a nice, and was even then, though not terribly Socialist.

Mind you, our Obama is trying do a fine job in his last few days before money takes over again.

Confused as ever, being the last child in a quorum (of four) - Latin again, can't beat it - Chris.

Checked the reference - Was into 'Fuzzy Freaks' at the time, as they were simpler.

Davy:
One of them groups of wires Bruce mentioned in a post or two back, one will be a PWM control for the brightness, t'other will be a ground and a +ve.... there are time they may double the ground and +ve leads to improve current handling. As far as I know one of them will be a on/off control, so that leaves two more wires if I'm on the ball.

The combination is huge when it comes to LED's, psu inverter or separate inverter,  the telly I did had led strips around the top and sides with the inverter inside the actual screen... I can't recall how many wires I had, it was more than two for sure going inside the display.

The flash you see when CCFL's strike is the gas ionizing and stabilizing isn't it something they all do, the start up voltage will be much higher at 'switch on' then will drop to the running voltage once lit unlike a LED.

Dave

Turnip:
Hi Davy,

Nice one, and thanks - Thought LED back-lights would be a doddle, bit like Crimble lights where you had to find the duff LED and change it, or maybe fit a zener diode if you hadn't got one.

Guess not so simple, but natch thought the inverter would have a brief go before going for safety - Many thanks for the Heads up - Chris.

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