Re: Dead Oven Control Board, Possibly Transformer?
Nice, thanks for the analysis. If I continue to have issues with the thermal fuse, I will consider replacing F1 with a 0.25-0.5A slow-blow fuse and see if that spares the thermal fuse. Hopefully I won't have to rig up a two transformer system....
Bobby78
Member
Last Activity: 11-08-2021, 08:04 AM
Joined: 09-01-2014
Location: Belleville
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Re: Dead Oven Control Board, Possibly Transformer?
It doesn't say either
[url]https://smile.amazon.com/gp/product/B079D8VZMF/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1[/url]Re: Dead Oven Control Board, Possibl...F8&psc=1[/url]...Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
So neither of the manufacturers have responded. Applianceboardrepair.com responded, but were of no help, only sending me links to irrelevant search results on mouser. Their last response was that they did not have a transformer, but if I sent the board in they would "patch it" for me. Not sure what they would "patch" it with considering the useless search results they sent me. Oh well.
Anyway, I couldn't find an exact match for the fuse and didn't want to wait on AliExpress, so I ended up buying...Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
Struggling to find a replacement transformer or thermal fuse with the correct specs. I've searched Digikey, Mouser, Ebay, AliExpress, and whatever else I could find with Google. The AliExpress fuse listing was no longer available so I sent a message to the seller. I've also sent emails to V&F, Robert Shaw, and applianceboardrepair.com to see if any of them can help.
After 1.5 hours powered with no load, the transformer is just warm to the touch, about 100F. Is that ok?
I guess if the transformer...Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
Thanks, but unfortunately that listing says no longer available. I've contacted the seller to see if they will be getting more in. I have been unable to find the part anywhere else either....Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
Progress is being made! Bypassing the thermal fuse gets me secondary-side readings of 9V across pins 11/12 and 12/13; 18V across pins 11/13; and 4V across 9/10. And that explains what I thought was two primary windings in series lol.
So at ~68 Ohms is the primary winding still good? I would think so since I got the 9V I was expecting?
If that's the case I can just replace the thermal fuse, yes?
...Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
In case anyone needs a good laugh, here was my pathetic start at trying to follow the circuit. Big Clive, I am not.
...Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
Hmm, I just saw that little square bulge in the primary winding... fuse?Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
Ok, transformer removed from circuit... I'm getting open circuit from pin 3 (line-in), to pin 6 which looks to be the other end of that winding. So the primary side has two windings (of different gauge) connected in series at pins 5-6? And the secondary looks to have two independent windings of different gauge, the lighter of which is center-tapped to ground at pin 12, do I have that right? I also tried to power the transformer out of circuit (after jumping pins 5 and 6 as they are on the board) and got nothing on the secondary...Last edited by Bobby78; 11-12-2020, 04:07 PM.Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
Yeah, I suppose I should consider contacting them. I just figured if they were at all interested in providing support for the thing then they would at least have some basic specs on the website....Leave a comment:
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Re: Dead Oven Control Board, Possibly Transformer?
Thanks, but I'm afraid a link to their website isn't all that helpful... A search for their own part number, on their own website, comes up with "Sorry, nothing found." If I've missed something, then I sincerely apologize; please provide further details if possible....Last edited by Bobby78; 11-11-2020, 04:07 PM.Leave a comment:
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Dead Oven Control Board, Possibly Transformer?
Six long years ago, @tom66 helped me save my plasma TV here on BADCAPS, and it's still going strong. Fingers crossed for another win!
I have a Frigidaire oven, rarely used, that I noticed was dead at some point during the summer, possibly after one of the bad storms. The light still comes on when the door is opened, so the circuit has power, but no sign of life from the LCD or the button panel. The control board part number is 318010700 and does not seem to be available any longer from any supplier, but there are companies that will repair them for $150-$200. Obviously I'd like... -
Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
Will do. I hope to keep this one running until OLEDS come down in price.Leave a comment:
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Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
TV IS ON!!!!!!!!!!!!!!!!!!!!
Wow, that might be the most rewarding thing I've ever done!
I don't know why you spend so much of your precious time helping people for free, but I'm sure glad you do!
Thanks Tom!
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Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
Nope, it's shorted out! Removed from board to double check as well.Leave a comment:
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Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
Yes for bothLeave a comment:
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Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
Pulled the 1/3 jumpers and both diodes read good, 0.4 and open.Leave a comment:
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Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
Any tricks for removing that massive heat sink they're trapped by? My 30W iron and 30W desoldering pump won't touch it.Leave a comment:
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Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
Also, those three diodes check out OK reading 0.5 in one direction and open in the other.Leave a comment:
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Re: Samsung PN58B860 Plasma suddenly shutdown and will not restart
All 3 Isolated. Still reading 0.4 ohms.Leave a comment:
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