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What is the story with the Panasonic SA-PT760?

Is there a known problem with this unit? I have one and it is completely dead, - as if there is a fuse dead on the power supply.

I checked with Panasonic and they wouldn't speak about it (or possibly some Indian support centre couldn't speak about it?) They insisted on my calling some local dealer who said the unit, which may well still be under warranty, wasn't likely to have a fuse problem. So I did a bit of research and amazingly came across someone on ebay offering to repair this specific unit!! Not that this is unknown but why this specific unit? I checked and usually these sorts of offers are limited to things like Krells?? (or units which are presumably known to go wrong, - and in a certain known area, - just after the warranty has expired)

So I peeked inside, being careful not to disturb the screws. Guess what? There IS a fuse inside it and it isn't blown.

Is this something to do with it boasting 125 watts (on numerous channels), yet being light as a feather, as if there is hardly a power transformer in it? Or more to do with the underside looking a bit like a cheap throw away Sony VHS unit?

Does anyone know what is the problem with this unit please? There isnt a repair station anywhere near me.

Reply to
myfathersson
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There probably isn't a power transformer in it. If it weighs next to nothing, then it will be a switchmode power supply, as most of Pan's recent stuff is. You would stand no chance whatsoever of fixing this unless you are experienced with switchers. The chances are that the problem is actually small, if the fuse is intact, but without specialised test equipment like an ESR meter and a scope, and a lot of experience and understanding of the very real dangers of switchers, then you are best to leave it to someone used to working on them.

If there is not a Pan dealer, or anyone else with the relevant experience in your area, then if the eBay guy has good feedback, perhaps you should consider sending it back to him ?

Arfa

Reply to
Arfa Daily

And HOW do you know it is not blown? By looking at it? I don't think so...

--
I'm never going to grow up.
Reply to
PeterD

Unless it is a ceramic cased HRC type where you can't see the actual fuse element - and admittedly this is sometimes the case with front-end fuses in switchers - then if the fuse *looks* intact, it probably *is* intact. Fuses in switchers tend not to fail 'softly' from metal fatigue or gentle overload as they do in linear supplies. Most cases, if a fuse in the front end of a switcher has failed, it will have done so spectacularly and will be at least blackened, and sometimes even shattered. Hence the reason that ceramic cased fuses in this position, are favoured by some manufacturers ...

Arfa

Reply to
Arfa Daily

"Most cases, if a fuse in the front end of a switcher has failed, it will have done so spectacularly "

Thanks guys, that is what I figured. You are right, this isnt a job for me!

Reply to
myfathersson

"Most cases, if a fuse in the front end of a switcher has failed, it will have done so spectacularly "

Thanks guys, that is what I figured. You are right, this isnt a job for me!

Reply to
myfathersson

"Most cases, if a fuse in the front end of a switcher has failed, it will have done so spectacularly "

Thanks guys, that is what I figured. You are right, this isnt a job for me!

Reply to
myfathersson

Did you ever figure your issue out? I have the exact same issue with mine. Going to open it up and see if any obvious issues. Tech support's live chat said to send it in, but that would cost more than just buying a new unit. irritated since this is our multi-region player.

thanks

Reply to
JoeT

does the unit bzzzzz when cold ?

Reply to
avagadro7

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