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Thread Tools | Display Modes |
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#1 |
Badcaps Veteran
Join Date: Oct 2009
City & State: Thessaloniki, Greece
My Country: Greece
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 2,137
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![]() Got this for free. Opened metal case and found one bad 2200uF 16V cap.
Replaced it with Capxon KM 3300uF 16V that was removed from a Jou Jye psu. Instead of being very tall, it fitted without touching the cover. DVD player works without any issues, the question is for how long, before the Capxon bulges. Do you think the low temperature and low stress of this application will save a cap with so bad reputation? |
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#2 |
Badcaps Veteran
Join Date: Jul 2011
City & State: Some times Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 3,654
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![]() Maybe but I would not count on it if it was not used for a switching power supply you might have a better chance of getting away with it if I was doing this repair I would go ahead and replace the low value capacitors except the main filtering capacitor as long as it does not show signs of leaking or bulging on the top or bottom of the capacitor
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9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later ) 2 Hem Saw Computer Stack Board All of these had ![]() All of the mosfet that are taken out by bad caps ![]() |
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#3 |
Badcaps Veteran
Join Date: Oct 2009
City & State: Thessaloniki, Greece
My Country: Greece
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 2,137
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![]() Well I already placed an ad to give it away for free, so I didn't want to spend more time/money on it. I have several DVD players like it and no one is interested any more on that kind of technology.
Especially the ones without working remote and/or the ones without USB port / mpeg4 support no one wants them |
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#4 | ||
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() Quote:
PSU appears to use discontinuous (flyback) topology and is always On, so long as it's plugged in. Thus, it will just depend on how much ripple current that flyback SMPS puts out for the filter caps. If not much, I suspect the CapXon KM you put should last. Also, CapXon KM tend to be hit-or-miss in my experience - sometimes they last a very very long time and don't seem to go bad, while other times they go bad quite quickly. In any case, this is much better than their KF or GF series, which tend to go bad with or without use (unstable electrolyte.) KM has fairly stable electrolyte and won't go bad in low-stress applications usually (like in audio gear that doesn't run hot/warm.) So I'm crossing my fingers for you/it that it lasts. Quote:
![]() Here, they are also pretty much worth nothing and no one seems to want them, even with the remote sometimes. What I don't understand is why thrift stores here still want at least $10 for them. Literally almost every thrift store I go to in my area has piles and piles of this stuff and they're not dropping their price lower to get them moving out the door. On a side note, the thrift stores in my area are absolutely terrible - often have over-priced crap (sometimes more than prices you find online that include shipping to your house) and not always working either. It's very rare that I'll find something worthwhile. The only thing I do like them for is that I can still find regular old incandescent bulbs >40 Watts there for 50 cents, typically. Last edited by momaka; 01-20-2022 at 08:33 PM.. |
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#5 | ||||
"Oh, Grouchy!"
Join Date: Jan 2011
City & State: PA
My Country: USA
I'm a: Professional Tech
Posts: 2,365
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![]() LOL at still finding bulbs! ![]() Quote:
After enough "organized shortages," maybe people will pay you/make it worth your effort/time? Give it til summer, anyway. But try not to destroy anything out of disgust/lack of interest. Been there myself- so you don't have to. ![]() Edit: Those "clone" DVD players typically have a main +5V supply, and both +/- 12V. Yours also looks like this. The big diode for +5; and two small diodes for +/-12. The one with the cathode towards the transformer is for -12...
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Last edited by kaboom; 01-20-2022 at 11:14 PM.. Reason: combined multiple replies :) |
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#6 | ||
Badcaps Veteran
Join Date: Oct 2009
City & State: Thessaloniki, Greece
My Country: Greece
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 2,137
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![]() Quote:
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Some people showed up and took some DVD players, no one wanted this one unfortunately. ![]() |
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#7 | |
Badcaps Veteran
Join Date: Oct 2009
City & State: Thessaloniki, Greece
My Country: Greece
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 2,137
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I will keep those DVD players until someone wants them. On the other hand, if I post them for free at Facebook Marketplace, they will all be gone in less than 24 hours. People there behave like this for some reason, when they see something is for free, first they say they want it, then they read the text and see the pics ![]() I am 100% sure they will take them not to use them but hoping they will resell them and make a profit, then some days or hours ago I will see them for sale for ridiculous prices, like 50 or 80 euros, they will be on sale for months or years but they wont reduce the price or consider giving them for free. That's how market for used items works here in Greece unfortunately. |
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#8 | ||
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() Yeah, just give it time, like kaboom said. It need to find the right "customer"... and like with the small LCD display, since this isn't a "hot" item, it may take a while to get taken. But eventually it will.
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![]() ![]() Of course, if these people keep the prices absurdly high for no reason, then no one will buy the thing and they may eventually end up scrapping it... which would be a shame, since you did put some of your time and effort into fixing it. To me, this is more or less the same as being (indirectly) disrespectful to the creator/maker/tech who fixed the item. IDK, maybe I'm weird like that, but I never liked destroying perfectly good things. |
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#9 | |||
Badcaps Veteran
Join Date: Oct 2009
City & State: Thessaloniki, Greece
My Country: Greece
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 2,137
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The only exception is when someone gives away something on a forum for example and a number of people say they are interested in getting it and some of them even need it and in the end it goes into the hands of someone that puts it for sale right after. This bothers me, but there is no easy way to tell who is honest and who is not. Btw I have quite a collection of CRT computer monitors and CRT TVs, maybe I should consider donating some of them. Quote:
And what is considered valuable or junk changes from time to time. People here were so desperate to get rid of CRT Tvs they almost paid people to take them. Now everyone wants these for retro computing/gaming. Same with VHS, you could find VCRs for free or dirt cheap everywhere, I found a perfectly working Orion unit near the trash some years ago. But now this started to change. There are a couple of active ads on marketplace from people asking to buy VHS recorders and VHS cassettes. VHS units sell in less than 48 hours now. And don't get me started about audio cassette comeback ![]() Last edited by goodpsusearch; 03-05-2022 at 10:44 AM.. |
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#10 | ||||
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() ![]() I still use mine for gaming and watching videos (the CRT monitors, at least.) I just can't get over the blurry images of an LCD, especially light<-->dark scenes or fast motion. Quote:
Here, there's also been interest back in CRT TVs and monitors... though there's still an over-abundance of CRT TVs (at least where I live), so I can still find a large CRT TV for free very easily (and almost weekly on local classifieds.) CRT monitors are absolutely gone, though. Seems like everyone was in a hurry to get rid of them when LCD came out. I did legit actually have a few people thank me and ask if they should pay me for picking up their CRTs. LOL! Now I wonder if they are regretting it? ![]() On that front, as much as I've been hoarding "stuff" / electronics, I can say at least every CRT monitor that I've picked up has been used on my desk for a few years at some point... and I still rotate them around. Some even developed a few small issues now and are awaiting on my "to fix" list. So they weren't just collected to sit somewhere in a corner/storage forever. I'm still clocking daily use on my SyncMaster 955df that I picked up 12 years ago. The Sony E540 is currently "resting"... even though I normally use it in the winter as my "daily driver". But this year has been an exception, I suppose. And another Dell 19" I picked up about 8 years ago is also my weekly gaming monitor. Actually, the GDM-FW900 hasn't seen much use - but that's only because I didn't have a powerful enough GPU to game on it until 2-3 years ago. I also dislike its over-brightness issues at startup. Too involved to fix, so I haven't bothered yet. Thus it has mostly sat around... which is OK - I keep seeing asking prices go up for these online. ![]() Quote:
We haven't hit that "wave" here (yet?) - not with VHS, at least. People are still trying to give them away for free most of the time or just very cheap. Audio cassettes have been so-so. The high-end stuff has been selling overall OK online. But broken stuff or stuff that needs work does seem to sit for a while. I still have most of my cassette collection from the 90's and occasionally do play a tape or two in the garage with that Sony boombox I fixed. Beats local radio here any day! ![]() Last edited by momaka; 03-15-2022 at 07:23 PM.. |
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