Philips 55PP9502 CRT based RPTV Convergence Repairs - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 21 Old 05-05-09, 07:20 PM Thread Starter
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

Well, my set was working great until today. Now it's really screwed. So I took off the back panel to see if I could find this convergence board. And I'm pretty lost. I found a part that looks like the one that you linked to, ljryjj. Here are the pics that I took.

http://www.flickr.com/photos/2112322...th/3506156054/

Pic 2 looks like the part above but strangely I don't see anything connected to it. And the part number is this thing.

http://www.partstore.com/Part/Royal+...04555/New.aspx

That just can't be it.

Any help would be appreciated.
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post #12 of 21 Old 05-05-09, 07:26 PM
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

The first link is not pointing to the right thing, :-)
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post #13 of 21 Old 05-06-09, 05:11 AM Thread Starter
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

Sorry. The pics are out there and public but for some reason aren't showing up if I'm not signed on to my flickr account. I'll try to get these out to my webshots accounts today.
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post #14 of 21 Old 05-06-09, 06:57 AM Thread Starter
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

OK, try this link:

http://community.webshots.com/album/571782721aYBzJe
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post #15 of 21 Old 05-06-09, 07:14 AM
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

The heat sink has the chips attached to it. The part number you have is for the heat sink itself not the ICs. What are you trying to find, the ICs or the board?




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post #16 of 21 Old 05-06-09, 07:43 AM Thread Starter
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

I've uploaded a new pic with an arrow. Is the arrow pointing to the ICs?

http://home-and-garden.webshots.com/...05125823rWnNaR

Sorry, I'm not familiar with the term heat sink.

I wanted to do a plug and play fix without doing any desoldering and soldering. I don't have those tools and if I bought them I would probably use them only once in my life.

So, instead of replacing individual circuits and guessing what circuits are bad (I have no testing equipment either) I wanted to replace the whole convergence board, if there is such a thing in my model.
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post #17 of 21 Old 05-06-09, 10:34 AM
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

The silver metal with fins is the heat sink. The black things are the ICs. With such a low level of understanding, I cannot recommend that you attempt to DIY a repair on a television. I strongly suggest you refer the problem to a professional.

Also, expect to need to change the coolant in the green and blue CRTs. It is very rare for this model set to NOT have contaminated coolant.

When you do not understand a term, one good way to learn is to use Google and Wikipedia.




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post #18 of 21 Old 05-06-09, 11:50 AM Thread Starter
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

With all due respect, thanks, but no on the professional repair advice. It would cost far too much for me to pay for an overpriced professional repair. I'm guessing that I would looking at $400 to $500. I would get a new TV and try to figure out what the to do with this one before going that route. It will probably end up in a dumpster somewhere. Too bad when only a couple of small parts need replaced. Do some repair shops buy old TVs?

So, how do I get a higher level of understanding to be able to accomplish a DIY job?

By the way I just looked up 'heat sink' and didn't see a picture of anything that exists inside my TV. Not that I expected it.

I really want to try to get this done on my own since I don't have the money right now for a ridiculously expensive repair job or for a new TV. I was able to do my own brakes on my car without knowing what a caliper was before looking online.

I'll assume that I would need to pull this heat sink since the ICs are attached to it, right? It's probably tougher than it looks, isn't it?

Man, why couldn't they make these things like PCs with plug and play modules and attachments.

Update: Hey, look what I found!

http://www.techghetto.com/tv-repair/

I guess that I'll have to buy some tools...

Last edited by Festivus; 05-06-09 at 12:30 PM.
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post #19 of 21 Old 05-06-09, 08:13 PM
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

Generally good advice there, just be careful about the vendor you use for parts.

If you google heat sink, you get a wiki link that has a picture and a very good explanation of what it means. If you can't sort out something this basic, you really are unlikely to have much success with your set. There are many potential pitfalls when repairing something like this, and if you don't have a good sense about figuring out such things, it may prove very dificult for you. Read and re-read the convergence repair thread here, the threads on coolant problems here, and any other links you find like the one you listed above. You may want to refer to general information about servicing electronics in Sam Goldwasser's FAQ for sci.electronics.repair. There is a link to it in the sticky for general repair info.




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post #20 of 21 Old 09-16-09, 02:09 PM
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Re: Philips 55PP9502 CRT based RPTV Convergence Repairs

I know it's been a few months, but if you still have this TV sitting there broken, just send me your bad board and I'll swap out the chips and any bad resisitors for you... for a small fee. That way you dont have to worry about ordering the wrong board, or buying and using soldering eqipment.
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