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Equipment Repairs => PLASMA TV forum => Topic started by: bonesy on August 04, 2017,05:49:23

Title: Pioneer PDP-LX5090 Kuro if hot & switched off,wont switch on again.
Post by: bonesy on August 04, 2017,05:49:23
Hi guy's,never repaired any Pioneer  Plasma's,this one belongs to a good friend .He tells me that the set switches on & works fine,but if switched off when hot,will not power back on. I've asked him to check for a blue light blink code,which will then give me a clue. I've read on the internet(I know,don't believe a word it say's) but there's more than one post about 8 flashes & a regulator on the AV signals board.Can anyone shed any light on this or is it rubbish?
Many thanks John.
Title: Re: Pioneer PDP-LX5090 Kuro if hot & switched off,wont switch on again.
Post by: downunder on August 04, 2017,16:53:08

Hi bonesy,

It' a fact but I don't know if it's in your model, and it usually produces error 8. 3.3V input - 1.8V out. It's your symptoms to a tee, though. Freeze should get it going again and heat will cause it to fail.

IC7951    njm2846dl3-b   on the IC face 846180 - only available from UT Source ASAIK.

Bruce
Title: Re: Pioneer PDP-LX5090 Kuro if hot & switched off,wont switch on again.
Post by: bonesy on August 05, 2017,05:05:54
Hi Bruce,thanks for that,I've found them on e-bay UK supplier,say's fitted to various model Pioneer plasma & DVD units.Just got to wait for set to turn up.
Title: Re: Pioneer PDP-LX5090 Kuro if hot & switched off,wont switch on again.
Post by: downunder on August 06, 2017,03:03:08

Ah, good find, bonesy. Good that you can source them locally. Good luck with it because Pioneer boards require that you take out a second mortgage.

Reminds me of the Sony RDR-HXD720_760 that would hang up on "Welcome". Was a similar 1.1V regulator.         Bruce