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| Generic Eric:
--- Quote from: Nephasth on April 16, 2014, 11:14:38 pm --- --- Quote from: Generic Eric on April 16, 2014, 09:05:49 pm --- --- Quote from: Nephasth on April 15, 2014, 09:20:52 am ---I use 5050s on the NephRings, they work great for edge lighting. --- End quote --- Have you ever messed around with RGB? Do you have any suggestions. --- End quote --- Yes. Suggestions as far as...? --- End quote --- I just edited the post you quoted. In a nut shell do you use rgb 5050s? If so, do you have a good link? Preferably some thing I could use withe the led wiz if that is what you are using. |
| Nephasth:
These are basically what I use: http://www.ebay.com/itm/50-pcs-RGB-PLCC-6-5050-3-CHIPS-SMT-SMD-LED-Light-/230802137241?pt=LH_DefaultDomain_0&hash=item35bce12099 They require the use of resistors when wiring directly to a power supply or LED-Wiz, but resistors are not needed when wiring to a PACLED64. Very tiny solder points... |
| nitrogen_widget:
--- Quote from: SavannahLion on April 16, 2014, 11:06:59 pm --- --- Quote from: nitrogen_widget on April 15, 2014, 12:25:17 am ---I just got a roll of 5050's from DX.com for $18 + a few bucks shipping. I want to see if I can use them to replace a back-light in a 21" 4:3 LCD monitor. It's an old monitor with a low resolution and parts are non-existent for it. so if my backlight experiment fails I still have a strip of led lights to play with. :) --- End quote --- It can be done. I have a 4:3 that's also slated to get the LED treatment. Unfortunately the inner shielding appears to be spotted welded together with tank armor. But I digress, here are a few articles on the topic using various techniques. http://www.keithwakeham.com/lcd.htm http://mycorner.no-ip.org/misc/ledback/index.html http://filear.com/dnn/Home/tabid/41/EntryId/50/Repairing-broken-LCD-screen-backlight-with-LEDs.aspx http://hackaday.com/2011/03/04/led-backlight-conversion-using-recycled-ccfl-inverter-parts/ http://blog.allgaiershops.com/2011/03/04/its-alive/ I can't advise you on the best way to proceed though. There are tons of articles in addition to the above attacking the problem from all angles. Enjoy. --- End quote --- Nice. Thanks. I actually have everything apart with full access to diffusion sheets & CC tubes. My two biggest issues are... how many strips to use & can I tie into a source on the power supply that will turn the LED's off when it goes into sleep mode. |
| SavannahLion:
You'll probably have to experiment to get it right on the number of LEDs. I don't see a lot of consistency in the number used in those projects other than the fact it took a couple of iterations to get it right. Off the top of my head, there probably isn't a place directly off the power supply. I would still check but I wouldn't bank on it. I might look at the original lighting circuit for a low voltage signal or at the indicator lights for a source. You might find enough that a simple NPN transistor will do the trick. If that doesn't fly, you might be forced to build a small circuit using relays or solid state or resort to a small microcontroller like an AVR (Arduino) or PIC. |
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