Re: Basic Soldering Quesiton
I definitely used those resources previously, as someone suggested to me, and they were very helpful.
My question is just in regard to the dark flecks that get into the solder joint on occasion. Seemed to be, like I described, that the iron would be nice and clean after wiping it on the wet sponge, but w/ or w/o the tinning the iron would quickly darken if not used promptly.
obscurehero
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Last Activity: 03-18-2011, 12:57 PM
Joined: 01-22-2011
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Re: Basic Soldering Quesiton
So, how do you limit the black stuff? Buy non-rosin core solder?Leave a comment:
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Basic Soldering Quesiton
So, I recently re-capped a few problem capacitors on an old LCD monitor. I had bought all the capacitors to re-cap the whole board, just to be safe, but stuck with the problem capacitors because of a soldering issue.
So, when I go to solder, I'll wash the tip on a wet sponge, and it's all nice and shiny. Then after I tin the tip briefly with some solder, the whole outer surface of the iron will turn a brownish/yellowish/blackish color as if its burning something in the air or oxidizing something. Then, those brownish flecks ended up making it into two of my solder joints. They didn't... -
Re: Dell 1905FP Won't Turn On
Jets a good thing there are people out there who are excellent at electronics. I just googled PWM and got a technical page. Maybe if I spent enough time I could understand it, but the most I got is that it's a fancy dimmer. That right?Leave a comment:
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Re: Entry level Equipment Recommendations!
oooh that's helpful to see! Thanks.
I think I'll forgo the chip-quik kit for now. Once I practice, I'll try to see if I need to get the kit. I'd like to avoid spending another $20, if I can. My wife is already looking at me quizzically for taking this on and spending $50 to fix a $100 monitor. Obviously, this project requires some set-up costs, so the next time I need to fix something, it should be a lot cheaper.Leave a comment:
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Re: Dell 1905FP Won't Turn On
Correct.
I'll need to bring my digital camera into work, but I'll try to get it posted for you this week.
This chip is tiny and there are a bunch of them:
029930G
517519127
0542
That's what I can make out.
What is it?Leave a comment:
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Re: Entry level Equipment Recommendations!
Thanks Bill.
I do have some cutters already that I think should do the job well. Supposedly the Weller iron has a 'pick' of sorts in the kit, so maybe that will help. I did end up getting wick and a pump as both were quite inexpensive. I'll practice on another bad IPS board and see which one I'm better with. I already bid on the wavetek meterman 15xp on ebay for $0.99 (w/o shipping). It seems to be a decent DMM, but the one you suggested looks a bit nicer. We'll see what happens with the auction.
Why do I need...Last edited by obscurehero; 01-25-2011, 04:02 PM.Leave a comment:
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Re: Dell 1905FP Won't Turn On
nope. Checked the board, and it has one 2.2uF and one 220uF capacitor for each transformer. I guess I dodged the bullet on that one.Leave a comment:
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Re: Entry level Equipment Recommendations!
I was debating between using a pump, a bulb, or just solder wick (braid). Any preference? Someone said somewhere (I forget), that sometimes the pumps can damage the board or traces?
Is there a type of pump that's better than others?
Whatever I'll do, I have an old IPS board that I replaced from another monitor that I'll practice on a bit first.Leave a comment:
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Re: Entry level Equipment Recommendations!
I'll probably go with the SP40L for now, as weller seems like a good company. If I end up doing more, I think a station would be a good buy...but as of now, I think that's an excellent suggestion!
I get free shipping at Amazon with Prime, so how does this: [url]http://www.amazon.com/Weller-SP40LK-Watt-Soldering-Iron/dp/B000HE5BZS[/url] compare to getting something like this: [url]http://www.radioshack.com/product/index.jsp?productId=2062738[/url]
I'm assuming I should go with the weller, hands down?
...Last edited by obscurehero; 01-24-2011, 12:23 PM.Leave a comment:
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Re: Entry level Equipment Recommendations!
How is that Weller opposed to the WLC100 station? It looks to be ~$10 more. Is there that big of an advantage to using a station as opposed to a stand alone iron?Leave a comment:
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Re: Entry level Equipment Recommendations!
Thanks for the advice!! However, I certainly am not well versed in electronics repair, but I understand the basics and I know how to solder reasonably well. If I end up screwing it up, at least I have the experience and a soldering iron and DMM to use. It's a free monitor, otherwise! I'll take precautions making sure the capacitors aren't charged...wearing a static wrist band...making sure to ventilate the fumes from the flux...etc.
I'm not a huge electronics enthusiast, otherwise I would love to join a ham...Leave a comment:
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Re: Entry level Equipment Recommendations!
Awesome!! I'd love your suggestions.
I live in the US, east coast. I certainly don't mind ordering on-line, though.Leave a comment:
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Entry level Equipment Recommendations!
Hello all!
I posted this recent [URL="https://www.badcaps.net/forum/showthread.php?t=13063"]thread[/URL] to fix the monitor that would otherwise have been thrown out at work!
I don't have a multimeter or a soldering iron currently. Back in H/S my dad had both, so for the little bit of hobby work I did, I used his.
I've convinced my wife that this is a good deal for us, but I need to justify spending $$$ on an iron and multimeter for "hobby" work. I want something that will last, but that I won't use terribly often. Both are handy to have... -
Re: Dell 1905FP Won't Turn On
The board is at work (I'll likely replace the caps there, as it has better ventilation than my row-house apartment), so I'll check it on monday and get back to you. I wouldn't mind if it never had the 22uF cap problem!...Leave a comment:
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Re: Dell 1905FP Won't Turn On
THIS^^ was very helpful to me. I appreciate you breaking it down for me. I had checked the FAQ section and I didn't see a clear explanation.
Thanks Bill!!
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Re: Dell 1905FP Won't Turn On
while I don't have the IPS (I think I called it a "PSU" board before, oops!) board in front of me right now, I think my board is a later or earlier version without the 22uF v 2.2uF cap problem. I ordered the 22 because toast suggested it, and I thought maybe I missed it however I did have TWO 2.2uF cap's when I surveyed the board.
I actually thought that maybe the 22uF might be on the other board (the display board?) and I hadn't checked that board yet. I'll double check now that you've mentioned it however!!Leave a comment:
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Re: Dell 1905FP Won't Turn On
Thanks Toast, I appreciate it. Caps are ordered and hopefully on their way. I don't mind spending $20 for a monitor one bit!
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Re: Dell 1905FP Won't Turn On
thanks!...Leave a comment:
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Re: Dell 1905FP Won't Turn On
@Toasty
Some of the caps you listed were the "FM" variety, but they had impedance and ripple current values that don't agree with the spec's on the capXcon website. What is the importance of these two values, and does it matter to replace it with a cap that has a different value?Leave a comment:
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