Re: Vizio VP50 blowing fuses.
I snapped a few pic's if it helps at all. The new (2 day old) ceramic fuse is also getting melted. The capacitors marked with red (6 ea.) are the ones that I replaced with the "kit".
I am having atrouble locating the correct fuse holder to order from Digikey. Of the ones they have listed with a picture, none match [I]exactly[/I] what I have. I couldn't find a part number on the fuse holder itself (unless it's on the underside) other than a LF marking. I assume that stands for Littelfuse. Any suggestions?Re: Vizio VP50 blowing fuses....
Heliotropic
Member
Last Activity: 11-05-2016, 06:37 PM
Joined: 10-08-2010
Location:
-
Re: Vizio VP50 blowing fuses.
Yes, the original fuse was ceramic. I did have to purchase some glass slo-blow because that is all they had locally. The glass ones weren't completely blackened, just the filament was broken. The last glass one I put in had the solder seeping out of the cap but was still working in the TV.
I have burned through all the glass ones I had and now back to ceramics....Leave a comment:
-
Re: Vizio VP50 blowing fuses.
There is definitely discoloration on one end of my fuse holder. There seems to still be plenty of tension for holding the fuse though. I'll go ahead and replace it anyway. Are they general in connection and mounting, or am I going to have to research a part number? Link?
Any other suggestions?
Thanks for the advice....Leave a comment:
-
Re: Vizio VP50 blowing fuses.
There also seems to be quite a bit of heat being produced at the fuse. A few times that I've went to change the fuse I find a ball of solder that seems to have seeped from under the cap onto the glass.
Is it safe to increase the size of the fuse? I always thought the fuse is set at that specific amp to protect the rest of the board.Leave a comment:
-
Vizio VP50 blowing fuses.
I am having a problem with 1 specific fuse on the power supply board (Samsung PSPF561A01A) that keeps blowing (250v 8A, I believe it is F180 location).
The fuse are [I][B]not blowing instantly[/B][/I], it takes a few days/weeks sometimes a month before it blows again. I have been replacing them with slo-blow fuses. I've installed a capacitor "kit" that replaced 6 of the capacitors, but the fuse has blown again since then. I purchased an ESR meter and re-tested those capacitors and they seem to be fine (the old ones were good too). I do not see any signs of other capacitors bulging... -
Re: AOC 2217v goes blank after power on.
Yes, actually I did. Your original statement said:
You did not request me to report the resistance readings of each.
I guess the correct reply to the post would have been, "Yes, they match within 3%". But using my "crystal ball" I assumed you wanted a number, in which I replied:
I assumed that you too had a "crystal ball" and would know that both are about 470 ohms.
Now, to be more exact, T801 is 472 and T802 462.
1. I am not an electronics technician,...Leave a comment:
-
Re: AOC 2217v goes blank after power on.
Is that not what i just did?...Leave a comment:
-
Re: AOC 2217v goes blank after power on.
My mistake, I was thinking 1-6 side [I]were[/I] the secondaries.
I'm at about 470 ohms on pins 7 and 8.Re: AOC 2217v goes blank after power on.
My mistake, I was thinking 1-6 side [I]were[/I] the secondaries.
I'm at about 470 ohms on pins 7 and 8.Re: AOC 2217v goes blank after power on.
My mistake, I was thinking 1-6 side [I]were[/I] the secondaries.
I'm at about 470 ohms on pins 7 and 8....Leave a comment:
-
Re: AOC 2217v goes blank after power on.
On T801 and T802 (pwr xfmrs) I'm getting 0 ohms between 1 and 4, also 0 ohms between 3 and 6.
I get 'open' between 1 and 6, 3 and 4.
Shorted?...Leave a comment:
-
Re: AOC 2217v goes blank after power on.
Maybe these will help......Leave a comment:
-
Re: AOC 2217v goes blank after power on.
So do I need to replace C939 and C940 EB series capacitors first, before I go any further? Or will they work long enough to find the cause of the "black" issue?
Does TL494IDR SOIC-16 sound more like the IC number you're asking for?
I'll try checking the transformers. Im assuming they cant be tested on the board and need to be pulled for testing, correct?...Leave a comment:
-
Re: AOC 2217v goes blank after power on.
The pictures I linked in my first post display larger than the ones shown on the second post...but you won't visit external links...so I'm a little suprised you're requesting a link now.
Regardless, the only place I was able to find schematics for this monitor was at elektrotanya.com (download link [URL="http://elektrotanya.com/aoc_2217v_tsumu5rbwhq.doc/download.html"]here[/URL]). The site isn't in english but "Get Manual" link is. Also, the manual itself is in Japanese but the schematics are legible...Leave a comment:
-
Re: AOC 2217v goes blank after power on.
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=19209&stc=1&d=1286574554[/url]
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=19210&stc=1&d=1286574554[/url]
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=19211&stc=1&d=1286574554[/url]
The brand of capacitors are Panisonic and all but 3 are FM series. The c905 is a TS-HB, c939 and c940 are EB series. I didn't realize they were different when I ordered them, and with my very limited knowledge...Leave a comment:
-
AOC 2217v goes blank after power on.
My problem is the same as ones I've seen posted here and on the net.
When I turn on my monitor I can see my desktop display perfectly for about 3-5 seconds, but then goes blank. It is [I]not[/I] going into "sleep" mode. I can hold down the power button to shut down the monitor. When I power it back up, I get the same result everytime...desktop display for a few seconds, then black.
I've tried the suggestions I've seen for similar problems people have posted, but I'm still having no luck.
Here's what I've done so far:
[SIZE="1"]Replaced all...
No activity results to display
Leave a comment: