Question about LG 42PX5D 42 in. Plasma HDTV

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Hello all, model is a 42PX5D-AB, LG branded. went bang and lost cvisual but audio is okay. took apart and found FS2 fuse blown on left hand board. (looking from behind). the greem power light gave a 3 flash blink code. picked up a matching 250v 4 amp fuse and fitted. now the power light comes on green for 7 seconds and goes back to red. it remains off throughout this phase. i am an electrician and air conditioning technician so can understand the basics. i suspect a faulty pcb??? worth fixing, if so DIY price or time to upgrade? thanks in advance.

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Posted on Jan 02, 2017

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SOURCE: No Picture on LG 42PX5D

You will have either a fault with the Y-Sustain board (this I would assume from your description is the board you changed the fuses on) or the buffer board which is the long panel to the left of this board. It is probable one of the drive ICs on this board has blown & a replacement board is the best solution.

Posted on Jun 30, 2009

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SOURCE: LG 42 TV powers up for only a second then goes back out.

Undo the back and see if the fuses are blown. Replace them if they are.

Posted on Jul 08, 2009

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SOURCE: hi have lg 42px5d-ab just went bang while watching

my sanyo 42" just got knocked over and its from homebuy????? im really worried as i put it outside and somr guys in a white van took it away, i only put it there incase my 2 year old got hurt. it was in my driveway, whats the powdery stuff that comes out of it?

Posted on Apr 19, 2010

  • 1 Answer

SOURCE: lg 42 plasma model 42pc3d-ud: had a really bad picture so

I Have An LG - 42PC3D-UD, When I Turn It On "It Have Sound And A Very Bad Picture.

Posted on Apr 13, 2011

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Hi,
It can't be fix by replacing the fuse alone because the IC's and other parts are already faulty. You need to replaced the entire Y-sustain board. Try this LINK or obtain it from your local LG Service Centers.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

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Most likely one of the IC's on the buffer board has blown & possibly the fuse on the Y-Sustain board is also open circuit. If you remove the back & look at the panel running down the left hand side, it may be possible to see if any of the IC's have a cracked body. It would be advisible to have a service repair centre take a look at this for you as these items would need replacing.

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You will have either a fault with the Y-Sustain board (this I would assume from your description is the board you changed the fuses on) or the buffer board which is the long panel to the left of this board. It is probable one of the drive ICs on this board has blown & a replacement board is the best solution.

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