Lg 42pc3dva

[smuddge]

First post here.

I have a 42" LG 43pc3dva plasma tv.

initially it was not turning on at all. no power what so ever.

looked at some of the caps on the power supply and they were bad so I replaced them. Then tried turning it on and the power came on but no display there was sound though.

Tested all fuses and found 1 in the ysus board was blown. replaced that and then powered it up. tv powers on for about 1 second then back off. unplugged the ysus board then then im back to power no display but I hear audio.

Not sure what I should be looking at next.

I am assuming it is the ysus board but the cost after looking around seems to be in the 130$ range for this particular model. Not sure if it is worth it considering all of the other things I have had to fix, who knows if there are more. I was given this TV so as of now I have only had to pay for fuses and a handful of caps.

Any advice would be appreciated.

thanks in advance.

[capkid]

Re: Lg 42pc3dva

You have a bad Y-Sustain. I'm not sure I recognize this model. What is the Y-Sus' part number? More than likely, if it's similar to this board, the IPM under the large heat sink has failed. There could be other damage, but it's not likely:

http://www.shopjimmy.com/lg-6871qyh053b-ysus.htm

You can change it yourself, or you can use a service like Coppell TV Repair offers: http://www.ebay.com/itm/Sustain-6871...item5ad9a71c41

Video on how to change IPM: http://www.youtube.com/watch?v=Y8MNQYXw8E0

Both Coppell and norcal715 recommend changing the Z-Sus' IPM at the same time.

Ok, that's all for now

[smuddge]

Re: Lg 42pc3dva

ysus part number is 6871QYH048B.

would this also work.

looking to do this as inexpensive as possible.

http://www.ebay.ca/itm/YSUS-Board-68...3a3618c&_uhb=1

[capkid]

Re: Lg 42pc3dva

Yes, that is a repair kit that includes a replacement IPM. The procedure to replace the IPM can be challenging, so watch the video I provided to understand what's involved. You can damage the circuit board rings and traces if you're not careful.

[smuddge]

Re: Lg 42pc3dva

awesome.

What a tremendous help you have been.

After I complete this one I have one more that I will post about.

This site is fantastic!

So helpful and quick also!!

much appreciated.

Thanks again.

[capkid]

Re: Lg 42pc3dva

Glad I could help. Hopefully, it all turns out well.

[smuddge]

Re: Lg 42pc3dva

its been a while and i finally got the ipm removed but in the process it seems i also damaged what ever was on c73 on the board. looks like a capacitor was there but I can't find what was there and I can't find any info on this board to buy a replacement for this part.

anyone know what this was?

thanks in advance.

[smuddge]

Re: Lg 42pc3dva

this is the small cap beside diode d21. figures after all that work I go and break something else. and this was a huge job to get it off.

hopefully someone knows.
thanks in advance

[smuddge]

Re: Lg 42pc3dva

anyone have any idea on this? It looks like it would be identical to the other ones I see on the board near these diodes. like c50

sorry for continuing to post on this but I really want to get this fixed now that I have it almost ready to be put back together.

thanks again.