When I first got this monitor, it had a "color shift" issue where the black areas would suddenly burst into dark blue, and the reds would burst into fucia (pink). I tried to adjust the settings which worked for a while bit eventually the monitor failed completely, and I had to perform the repair of some caps in this thread:
[url]https://www.badcaps.net/forum/showthread.php?t=40757[/url]
At first the repair was successful, but after a couple of weeks the color bleeding/blotching is happening again and I wonder if it's a precursor to another permanent...
Jonny Accelerant
Banned
Last Activity: 10-13-2014, 01:49 AM
Joined: 08-22-2014
Location: San Antonio, Texas
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Vizio LP2626: 2nd Thread
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Re: Second opinion on replacement caps
Well I'm glad we've got that all cleared up then.... -
Uploading Photos
I tried to upload some "progress report" photos the other day and the forum was giving me the finger. Today I could upload photos on a new thread, so maybe I can upload these, which may help someone else and trying to figure out which leads to desolder was very difficult.
"underneath.jpg" shows the underside of the main pc board, with red circles marking those leads that are buried underneath a heavy layer of solder, and the blue circles mark the lead pairs for each capacitor. This was not double-checked, so it may have some errors,...Last edited by Jonny Accelerant; 10-10-2014, 09:06 PM.Leave a comment:
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Antec SP-500 Burned Resistor and Big Bulging Caps
There are several other threads on the Antec SP-xxx series that can be found using the "Search" function, for anyone looking for help on their Antec PSU's (besides this thread).
This PSU was installed in 2006 on a small business server that has been running 24/7 for the last 7 years before the Server would no longer power on. Replaced the Antec and the Server operates normally.
Visual inspection shows 2 things. 1) There's a small resistor that seems to connect the ground & hot of the 120VAC, that is burnt, and one of the large, (what other threads have called)...Last edited by Jonny Accelerant; 10-10-2014, 08:10 PM. -
Re: Second opinion on replacement caps
The point is that ordering replacement caps does not require a "high-level" understanding of ripple, and how that relates to purchasing replacement caps. It's not a factor for consideration. I would think cap diameter in particular, as well as voltage rating, max temperature etc... would be more a important concern.
And I wasn't implying anything about vets; I'm saying that they have said to me that a newb learning how to do basic cap replacement doesn't need to worry about ripple. All circuits are "someone...Leave a comment:
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Re: Second opinion on replacement caps
What they told me is that newbs don't really need to worry about ripple, and also from what I've read the Pan FC are older and the Pan FM are a good, multipurpose, "one size fits all" capacitor. The Pan FR series are the newest and presumably the best but I could not find a distributor in the US, as they are "too new". Also, in general I gather that ripple is bad and the less you have the better off you are, but I think the primary quality of the cap you need to think about is how long it lasts and everything...Leave a comment:
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Re: Will this recap work ?
I just read the whole thread. Seems like someone went to a lot of trouble to do a half-assed job? Did the one blocked lead whole cause the whole situation? I got the wrong caps part, and I don't really understand how a broken lead in the pc board is a permanent situation (desoldering iron?), but I still don't understand why they are setting those caps high off the motherboard like that as it seems to me that it would have been easier to solder them all the correct way on the back-side of the board, so at this point after reading the thread...Leave a comment:
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Re: Need help with what to do.. guide me please
Are you really only 14? Letting people know this will increase the level of patience. Well, at least for me anyways, lol...
The fuses are the long narrow white things with silver ends and they look like stone (ceramic) in the middle. They should test short, or 0 ohms on a multimeter. I doubt they are the problem because I think they burn black soot when they go, but you never know.
Total parts for that repair might be around $11.00, depending on if you go pre-made kit via eBay, or buy the...Leave a comment:
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Re: Need help with what to do.. guide me please
[url]http://www.ebay.com/itm/Repair-Kit-Samsung-SyncMaster-245B-LCD-Monitor-Caps-/330582684086[/url]
Here's a link to an eBay vendor, which claims to sell the components needed to repair these power boards. Not saying that's the problem, or the solution, but if it comes to component desoldering and resoldering, I'd recommend going this route your first time out. Others here will help order more high-quality parts for somewhat less per part, but the huge shipping cost will negate those savings. If you are not planning...Leave a comment:
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Progress Report
The primary problem with my OCZ-520 12U P022-F ver:2.2 is the leaking and bulging capacitor C24, hidden under the larger of the two heat sinks, which is why I missed it the 1st 3 times I did a visual inspection.
Which is not to say that this is the ONLY problem. I posted the above for search engine purposes on the chance that someday, someone else will be looking for that exact text.
Last night and part of this morning I removed all 22 capacitors from the P022-F ver:2.2, except for the remaining 3 small capacitors on the daughter board,...Last edited by Jonny Accelerant; 10-07-2014, 12:56 PM.Leave a comment:
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Found It!
After literally the 4th time giving it a close visual inspection, with an eye to removing the heat sinks, I found one leaking capacitor (see attached).
So now the question. Can I do this without removing the heatsink(s)? I pulled the screws out from underneath, but the heat sinks are fastened horizontally to some components on the pc board, and how do I get those screws off?
Also, I'm thinking the best way to do this is to desolder each cap one at a time and note what it is and what it's named on the pc board, before trying to identify and...Leave a comment:
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Re: OCZ-520 Looks Good, but Won't Work
I'm posting the 20/24 pin pinout for future reference.
As I interpret your post, you are saying that the 5 (vsb? Did "volts" get upgraded?) is always on? Even when the PSU is off? I'll check it tomorrow, it's getting late and plus I can't remember where I left my multimeter. Thanks for the help. I'm thinking, no matter what the specific problem is, I should recap the whole thing as a matter of GP (General Purpose). The other thread (link above) someone said something to the effect that when one goes,...Last edited by Jonny Accelerant; 10-06-2014, 12:44 AM.Leave a comment:
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OCZ-520 Looks Good, but Won't Work
I suspect the cap(s) immediately next to the large bundle of cables coming into the PSU. I'm thinking mechanical action/stress/movement has "done something" to the caps, as one of them in particular is REALLY wobbly. It won't rotate, so it feels like both leads are still intact, but you can't really see anything so IDK. Wonder if caps can go bad due to movement stress where the lead stays unbroken, but the cap is broken anyways.
[COLOR="RoyalBlue"]Also, there is another thread (which I've read) on badcaps [URL="https://www.badcaps.net/forum/showthread.php?t=38768&highlight=ocz"]here[/URL].[/COLOR]...Last edited by Jonny Accelerant; 10-06-2014, 12:22 AM. -
Re: What is it with Lite-ON Drives?
SONY.
Never had a problem with a Sony anything. Even my BenQ turned out to be a POS.Leave a comment:
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Re: Forwarding in Router Arris TG862
For some reason I want to say that Arris is Motorola rebranded....Leave a comment:
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Success !!
I'm pleased to report that the repair is a 100% success. The 4 capacitors arrived today from Mouser, and only took 3 days to arrive. About $11.00 total, most of which was shipping, and that was the cheapest option.
This is monitor, lessee... #3? #4? for me and so things went smooth, MOST PARTICULARLY since I invested in a desoldering iron from Radio Shack ($15.00). I got the kind that has the squeeze bulb above the iron. Did such a good job that on the 2nd lead's solder removal, the capacitors all just fell out.
The biggest issue I had was reassembly...Last edited by Jonny Accelerant; 10-03-2014, 12:15 AM.Leave a comment:
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Re: How to Manually Control Multiple Network Adapters?
MY VPN is very common and everyone uses a limited number of IP Addresses. And the VPN is cheap and probably prone to whatever problems a cheap, commonly used VPN is prone to. But still the question is how to make chrome use network connection "A", internet explorer uses "B", etc......Leave a comment:
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Re: BENQ2420 LCD turns off after 2 seconds
I just read about this last night. Called "two seconds to black" what the circuit does is look to see if the backlight bulbs are turned on during the "boot" process, and if they are not it shuts down (to black). Any of the bulbs being out will do this, and also if there is no high-voltage power to the bulbs, the system will shut down. From what I've read, usually there is a capacitor that is burnt open after the step-up transformer on the circuit board, so you should measure those and inspect them closely. I'm still...Leave a comment:
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Re: Vizio LP2626/VMM26-F20I, C504 Burnt: What about R508 & R525
Is there any "electronic" reason why one capacitor is more likely to fail than the other? (30% vs. 50%)?
Also, FIW I found this, which seems to show the same power board is used on a "FujitsuSiemens SL3260":
[url]https://www.badcaps.net/forum/showthread.php?t=30464[/url]
I keep hoping to find a name for this board that is something other than the official Vizio part number, as I suspect it's more common than just these one or two LCD monit...Last edited by Jonny Accelerant; 09-29-2014, 09:38 AM.Leave a comment:
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Re: Vizio LP2626/VMM26-F20I, C504 Burnt: What about R508 & R525
The circuit diagram on the left specs that cap at 15 pF and 3KV, and the diagram on the right specs the cap at 10 pF and 6KV, and the LP2626 is spec'd at 12pF and 3KV.
Would the LP2626 be better off with a higher capacitance, higher max volt capacitor, since by these two diagrams it seems that there's a bit of inverse relationship between capacitance and max voltage, and maybe one reason for the failure is that they went lower in capacitance (than 15 pF) but not higher in max voltage....Last edited by Jonny Accelerant; 09-28-2014, 10:54 PM.Leave a comment:
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