Re: Lg 60PK550 Problem
Update. I've made peace with not being able to fix the TV. The new Plasma made it's inaugural movie viewing last night and it's basically a newer version of the 60pk550. I'm going to try to find a repair place that will take the old TV for parts. Thanks so much for all your help with troubleshooting this. I'll see you all around. Allan, if I can provide any more advice on your TV don't hesitate to contact me via email. Also, if anybody in the future want's to resurrect this thread, I don't seem to be getting email updates with new posts so just PM me.
fireproof710
Senior Member
Last Activity: 03-23-2017, 05:57 AM
Joined: 12-10-2013
Location: Massachusetts
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Re: Lg 60PK550 Problem
I'm wondering if the logic board could cause issues? I'm 80% sure I'm going to go out and buy an LG 60PN5000 from Walmart that's on sale for $598. Apparently, they're trying to clear out the non-smart TVs. The purchase of a new tv aside, just can't bring myself to abandon a TV that's close to functional. It would be a shame to chuck it. Maybee I have a problem.
Last edited by fireproof710; 02-15-2014, 02:31 PM.Leave a comment:
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Re: Lg 60PK550 Problem
Well, I'm not sure what to do. I got the replacement PSB in today and the TV is exhibiting the same symptoms as before... Any final thoughts before I hang up my multimeter and buy a new one?Leave a comment:
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Re: Lg 60PK550 Problem
Waiting. Waiting. Part was supposed to come yesterday. It won't be here til friday. But at least this time I have a tracking number. Allan, did you make any move on replacing capacitors?Leave a comment:
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Re: Lg 60PK550 Problem
I don't think it was yours. I got mine for $60 inc. shipping. I'm glad you sold yours though!Leave a comment:
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Re: Lg 60PK550 Problem
Ah, bummer! I see several on eBay. Which is yours?
EDIT: I just bought one off of ebay that looks like it might be yours. Same numbers from a 60PK750.
@Allan, I should have the part by next wednesday and should be able to say definitively wether the PSB is indeed the weak link
in our mutual problem. I emailed you a link to a board listed in NZ that you might be able to get cheaper shipping on.Last edited by fireproof710; 02-06-2014, 11:28 AM.Leave a comment:
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Re: Lg 60PK550 Problem
[B]@ 102mm[/B] thanks for taking the time to reach out! If you could take a peek at your power board to see if they're compatible, that would be great! The power board is the tan colored one that was in the centre of the panel. If you take a peek at the top of the board you should see 2 sets of numbers (pic attached) The top one should be the same except for the number(s) after the slash. The lower one should be identical to mine. If it is, they would indeed be compatible and make a good candidate for donation!!!
I'm sorry to hear that your...Leave a comment:
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Re: Lg 60PK550 Problem
Update: Still no board. I ordered it and now I haven't been able to get ahold of the seller for over a week to see what the deal is. if I can't get through today, i'm going to call my credit card co. and have them hopefully reclaim my $85 so I can order one from ebay...Leave a comment:
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Re: Lg 60PK550 Problem
No luck. It's EXTREMELY difficult to solder leads onto the legs of the IC. They're spaced too closely and I keep accidentally undoing the completed joints. Also it would appear that my soldering iron has a cheap tip. It oxidizes awfully fast and refuses to stay tinned. Lesson learned. I'll buy a better tip.
On the good news front, I found a part recycling co. that has my part for $85 after shipping. I ordered it and they said it should come on Tuesday at latest. Fingers crossed.
After all this, I'm going to need to have a LOTR or...Leave a comment:
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Re: Lg 60PK550 Problem
Perhaps tomorrow I might try tinning some extra fine insulated wire to the leads of the IC, follow the traces on the board and solder them to the joints.
Leave a comment:
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Re: Lg 60PK550 Problem
It aint pretty but there it is. After the second removal, several of the pads and traces have pulled up but are still attached. I don't have any solder wick, but I do have one of these desoldering irons that I can use to clean it up:
[url]http://www.mcmelectronics.com/product/21-8240[/url]
Any additional thoughts before round 2?Re: Lg 60PK550 Problem<br /> <br />...er wick, but I...Leave a comment:
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Re: Lg 60PK550 Problem
Okay. That's exactly what I did: pin the corners first to hold it in place. I think I got the alignment pretty decent. I'll unsolder it now and post back with a pic of the underside in a few.Leave a comment:
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Re: Lg 60PK550 Problem
As per the spec sheet that particular pin is called "FGND"
Attached are 2 pics. The first one is my freshly soldered circuit. The second is the untouched identical one for comparison. I'll go back and check all of the legs to make sure they have good contact. and aren't bridged anywhere although I was checking them all with a loupe as I went. Any particular advice for working with ICs? Is it possible I overheated it? I did have the forethought to order two of them. So I could theoretically pop this one off and have another go at i...Leave a comment:
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Re: Lg 60PK550 Problem
Well, I think the proverbial goose has been cooked. After a very tedious bit of surgery, the IC was removed and replaced. It started out well. I found that daubing the little legs of the IC in flux greatly helped to make the joints without putting excess heat on it. It makes me winder what the heat tolerances are on those little guys because even with minimal contact with the iron, it really heats up quick. I cooled it between passes with a damp sponge to alleviate the heat. All went well until the last pesky contact. The pad burnt up so there was nothing...Leave a comment:
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Re: Lg 60PK550 Problem
Welcome Alan. Isn't it amazing just how much info one can find on the web? Hopefully we'll be able to get your TV going too!Leave a comment:
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Re: Lg 60PK550 Problem
A tech from ShopJimmy replied very eloquently: "rev number should work" after having been asked about differing numbers. The page for my part says that the same board is useable on several different size tvs so it would seem as long as the EAY# is the same and the EAX# is the same (allowing for a different revision) it should be a good fit.Leave a comment:
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Re: Lg 60PK550 Problem
Yeah, like i mentioned before, this behemoth of a tv has been sitting on my dining room table for about a month and I need to get it back on the wall asap. I'll try swapping out that IC. I have already done all of the small caps on the board including the ones directly adjacent to that particular power circuit. Like tom66 said its only a couple of bucks more, so its worth a try to swap out the IC. If that doesn't work, then I'll just buy a replacement board and be done with it. My power board is out of stock at Shopjimmy but I may be able to find one elsewhere....Leave a comment:
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Re: Lg 60PK550 Problem
As an aside, I'm simply stunned that just about any component on these boards can be readily ordered on a handful of suppliers. The overall catalog numbers at these places must be overwhelming.Leave a comment:
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Re: Lg 60PK550 Problem
Ordered. Thanks for walking me through this. I see the light at the end of the tunnel
Leave a comment:
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Re: Lg 60PK550 Problem
Thanks for the reply. Googling L6591AU returned no results but leaving off the "AU" gave me what appears to be an AC/DC circuit with the same number of pins as the one on my board.
[url]http://www.digikey.com/product-detail/en/L6591/497-8286-ND/1935776?WT.z_cid=ref_octopart_dkc_buynow[/url]
I'll give it a go.Re: Lg 60PK550 Problem<br /> <br />...ins as the oneLeave a comment:
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