I have been having a very hard time finding good quality LEDs does anyone have a good source for them
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Re: Where can I find good quality LEDS through hole type
What are the requirement?
https://www.cree.com/led-components/...rightness-ledsLast edited by budm; 04-02-2019, 08:57 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Where can I find good quality LEDS through hole type
water-clear 3mm and 5mm, ali-express in 100's
if you want traditional foggy-plastic ones - not so sureComment
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Re: Where can I find good quality LEDS through hole type
the colour ones are really good, i use flat-top ones to indicate various voltages in psu circuits.
but your after high-flux white - i never had anything like that.
i do know the main maker of those is not CREE, it's Nichia.
http://www.nichia.co.jp/en/product/led.htmlComment
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Re: Where can I find good quality LEDS through hole type
Is this a good price for them
https://www.ebay.com/itm/200-High-Br...sAAOSwPrtcGw6pComment
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Re: Where can I find good quality LEDS through hole type
USED white leds?
a good price is if THEY PAY YOU to take them!!Comment
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Re: Where can I find good quality LEDS through hole type
LOL, I like the "Sealed pack of 200 pcs.", they are used so what's the purpose of saying 'Sealed pack', trying to make it looks like new? $150?????Last edited by budm; 04-04-2019, 09:37 AM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Where can I find good quality LEDS through hole type
ROFLOL! at the $150 lot!
what is the application you need these for?Last edited by kc8adu; 04-07-2019, 06:10 AM.Comment
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Re: Where can I find good quality LEDS through hole type
They look like they don't have leads cut or soldered, not sure if they're really "used" ...
I think these LEDs are NOS not used... though better to clarify.Comment
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Hello guys,
I would like a quite old but still good 800 W ATX PSU to be repaired. The problem was an extremely heavy coil whine coming from the small secondary transfomer on the PCB.
I desoldered it hoping the references on the upper side would allow me to find a adequate replacement part. Sadly the written references drove me nowhere but to the manufacturer (I-MAG). I sent them a message like a bottle in the see asking them to send me a datasheet of the transformer. And... They responded ! I received a kind of datasheet (see attachment) but my competencies do not allow... -
Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
Normally, I never post repairs this quick after I do them, because… I am usually very slow.
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
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hello on the above tv i changed lent normally at the bottom i put the leds look strongly round at the point where they are installed and up to the middle it has very good bright lighting from the middle and up it is a little darker and looks ugly this difference can someone advise me what can be to blame as it was the old ones i placed and the new ones precisely Simply because the plastic through which light is transmitted 7 of the old leds had burned and made a hole in it when I placed the new leds I turned the light transmission plastic and put the top of it at the bottom to be straight with... -
This tv is with sound but no picture. When light shines on the screen, we can see the image. This is a typical backlight problem. I opened it and found quite a lot of the leds are damaged. But the damaged ones are all shorted. No one is open. Is there a special reason? (From my past experience, both can be happened)
When I supply 3V to each of the good leds, the currents range from 105mA to 154mA. From these figures, I think the leds are 3V and about 0.5W. I plan to replace all the damaged leds only (because the price of the led strips is very expensive), but I could not find 3V 0.5W...
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