Re: Flickering monitor - Samsung 226BW
I've been reading some more on soldering and now I'm not so sure if those actually are cold joints. If I read correctly, cold joints are generally formed when you somehow move any part of the capacitor before the solder has enough time to harden. I was VERY careful about this and I gave each joint plenty of time to harden, and I am certain there was no movement at all. Also, there were definitely no visible cracks on any of the joints I made.
So now, I'm kind of leaning more towards a case of just using a bit too much solder....
Decoy
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Last Activity: 04-22-2010, 11:13 PM
Joined: 04-13-2010
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Re: Flickering monitor - Samsung 226BW
Been doing some reading and it seems like a couple of those solder connections might be cold joints. I can't actually tell if they're cold joints, or just joints with a bit too much solder. I wish I took a better quality picture, argh!
What do you think guys? If even one of those cold joints, is there a risk of catastrophic monitor failure? The monitor works beautifully now but I'm worried about long term damage. I know a lot of you are enthusiasts and would absolutely not stand knowing there is even a single sub-par joint on...Last edited by Decoy; 04-20-2010, 04:14 AM.Leave a comment:
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Re: Flickering monitor - Samsung 226BW
Success! Thanks for all the help guys. Had to replace 3 bad caps.
Since I never soldered before, I really don't know how good of a job I did. I think I might have used a bit too much solder on a few connections. Even though it works now, I'm worried that there might be some long term problems with bad solder connections. You be the judge though, I've attached a few pictures. They're a bit blurry though, sorry about that.
Anyway, it was a good learning experience for me, so thanks again for the help!...Leave a comment:
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Re: Flickering monitor - Samsung 226BW
Thanks for checking!
I just went ahead and ordered the caps, hopefully it all works out. ^_^Leave a comment:
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Re: Flickering monitor - Samsung 226BW
For reference, these are the caps on my board, and a picture can be found here:
C105 150uF, 450v, 105 °C, 20mm D x 42mm H
C107 47uF, 50v, 105 °C, 5mm D x 10mm H
C112 330uF, 25v, 105 °C, 10mm D x 15mm H
C110 820uF, 25v, 105 °C, 10mm D x 20mm H
C111 820uF, 25v, 105 °C, 10mm D x 20mm H
C301 680uF, 25v, 105 °C, 10mm D x 17mm H
C302 680uF, 25v, 105 °C, 10mm D x 17mm H
These are the parts that I'm going to get:
1x EEU-EB1H470S - 47uF, 50v,...Leave a comment:
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Re: Flickering monitor - Samsung 226BW
Something else I just realized is that these particular caps are all 25mm in height, but I can only use caps that are 20mm in height. Would there be any risk in buying these 25mm caps and then bend the wires sideways so the cap will lay on its side? (Common sense would tell me that no, it should not matter - but I am a complete amateur so I should ask anyway)Leave a comment:
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Re: Flickering monitor - Samsung 226BW
I did this earlier but I really could not decide which to choose. The choices are between Panasonic, Nichicon, and Chemicon, all of which are supposed to be the "good" cap manufacturers. Should I just pick the one with the highest lifetime?...Leave a comment:
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Re: Flickering monitor - Samsung 226BW
Thanks Bill.
I did some searching and found another thread about the 226BW, and I did find a list up your sleeve, because you're the one who posted it
This was what you recommended:
C107 47uF 50v GL 105 °C C640 VENT 5mm D x 10mm H EEU-FC1H470
C110 820uF 25v GL 105 °C C646 VENT 10mm D x 20mm H EEU-FM1E821L *
C111 820uF 25v GL 105 °C C646 VENT 10mm D x 20mm H EEU-FM1E821L *
C112 330uF 25v GL 105 °C C638 VENT 10mm D x 15mm H EEU-FM1E331
C301 680uF 25v GL 105 °C C650...Last edited by Decoy; 04-14-2010, 08:39 AM.Leave a comment:
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Re: Flickering monitor - Samsung 226BW
Well, I am not ENTIRELY new to soldering, I have done it many, many years ago but it's been so long that I guess you could pretty much say I've never done it before.
Quite frankly though, I am actually more concerned about disassembling the monitor itself without damaging it than the actual soldering work. There doesn't really seem to be any apparent point on the monitor that yells, "Open Here!". I am kind of worried that I am somehow going to snap the bezel in half. I don't suppose anyone here who has opened an LCD...Leave a comment:
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Flickering monitor - Samsung 226BW
Hi guys, new member here.
About a week ago, my Samsung 226BW S Panel began to flicker/blink on and off when I open it after the monitor has been closed for a while. It takes about a minute or two before the flickering slows down over time and eventually stops altogether - and the monitor then works just fine.
Is this a symptom of a bad capacitor? Is it a difficult job to replace these capacitors, for someone like me who has NEVER soldered anything before? I do have experience with computer hardware though, I've built a fair share of computers by myself and I generally...
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