Re: Panasonic TH-42PZ77U SC board repair 7 blinks

Got my bridge rectifier and TV is up and running. Actually using it now to type this up as it's doubling as my new computer monitor.

And that link I listed above is a newer firmware than I had. It is now 1.92 and also listed the word "peak" in the name which I might assume refers to some sort of peak limiting.

Anyway, only thing left to troubleshoot is a faint blue box in the middle of the screen when I have a white background. Looks like burn in. Can't complain for an almost free TV.
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Re: Panasonic TH-42PZ77U SC board repair 7 blinks

Ahrg!

It was working for a short test, but in my haste to put everything back together, it looks like I used a wrong screw that goes into the plate on the back of a bridge rectifier on the power board. The screw was just long enough to snap the part it in half, giving me 10 blinks now.

The part number is D6SBN 20 and unfortunately, the repair shop that happened to carry 5n2307s has none of these.

They said they had other bridge rectifiers rated at 200v 6A, but is this something that's...

Re: Panasonic TH-42PZ77U SC board repair 7 blinks

Picking up a new 5n2307 on the weekend, but I've yet been able to detach the old shorted one. So I'm wondering if I can just install over top with a small piece of wire to bridge the drain tab.

Obviously I'd make sure there's no contact with the legs of the old one, but other than perhaps heat dissipation issues and ugliness, are there any other concerns with this idea?


And Rockguy, what I meant to say in my last post was that the previously posted "fixed" firmware is the same as the...

Re: Panasonic TH-42PZ77U SC board repair 7 blinks

I found the firmware for the 42pz77u attached in another thread and it turns out that it's the same as the one in the link I found above (same file hash).

Re: Panasonic TH-42PZ77U SC board repair 7 blinks

My neighbour put out her dead 42pz700u with a "free to anyone who thinks they can fix it" sign on it, and thanks to this forum, I have identified a shorted 5N2307.

Just waiting to get a replacement, but I'll also want to update the firmware as it sounds like they've tweaked it somehow to reduce the strain on these components.

I have only found [URL="http://www2.panasonic.com/webapp/wcs/stores/servlet/vSupportDownloadDetail?storeId=15001&idval=UCM_PRD_CNT_007552"]http://www2.panasonic.com/webapp/wcs/stores/servlet/vSupportDownloadDetail?storeId=15001&idval=UCM_PRD_CNT_007552[/URL]...