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Old 10-30-2015, 11:34 AM   #1
mattstolte
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Default where to buy single smd led to fix strip

was wondering if anyone knows where to buy single smd leds to repair led strips?
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Old 10-30-2015, 11:43 AM   #2
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Default Re: where to buy single smd led to fix strip

You would need to specify the type, rating, dimensions, colour (warm/cool/neutral white) etc. Digikey is a good place to start.
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Old 10-30-2015, 11:45 AM   #3
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Default Re: where to buy single smd led to fix strip

Quote:
Originally Posted by tom66 View Post
You would need to specify the type, rating, dimensions, colour (warm/cool/neutral white) etc. Digikey is a good place to start.
+1.
also: https://www.superbrightleds.com/cat/component-leds/
The one used in TV will have > 100mA rating.
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Old 10-30-2015, 11:52 AM   #4
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Default Re: where to buy single smd led to fix strip

Quote:
Originally Posted by tom66 View Post
you would need to specify the type, rating, dimensions, colour (warm/cool/neutral white) etc. Digikey is a good place to start.
+1
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Old 10-30-2015, 04:01 PM   #5
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Default Re: where to buy single smd led to fix strip

I am unsure of how to find the ratings for these. Normally I would just buy some used strips to get the tv working. But I would like to start repairing the strip with replacement leds. They are the common strips that are in the 47 lg 47 vizios I have replaced many of the strips. But I can make alot more.money by repairing them
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Old 11-01-2015, 12:44 AM   #6
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Default Re: where to buy single smd led to fix strip

I recently repaired a strip using some bought from maplins.
http://www.maplin.co.uk/p/white-led-n67jq
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Old 11-01-2015, 05:28 AM   #7
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Default Re: where to buy single smd led to fix strip

http://www.ebay.com/bhp/led-backlight-strip

http://www.shopjimmy.com/tvs/tv-led-light-strip available over proxy see:

:http://www.badcaps.net/forum/showthread.php?p=590506

http://www.ohmsupplies.co.uk/epages/...ts/LED01-Z1.01 LED STRIPES
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Old 12-14-2015, 09:57 AM   #8
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Default Re: where to buy single smd led to fix strip

Quote:
Originally Posted by mattstolte View Post
I am unsure of how to find the ratings for these. Normally I would just buy some used strips to get the tv working. But I would like to start repairing the strip with replacement leds. They are the common strips that are in the 47 lg 47 vizios I have replaced many of the strips. But I can make alot more.money by repairing them
If you saved the old strips, you can scavenge the working leds from them.
In my experience, most of the leds are still good... depending on how they fail.
On some strips, the leds short, which causes lots of them to short eventually.
Most seem to open when they fail, on these strips there are usually one or two bad... and the rest are still good.

And turn the backlights down after the repair, also instruct the owner of the set to keep the backlights turned down to get them out of what I call "roman candle " mode.
The nicer sets will have separate settings for each input, so you have to go through each inputs setting.
If you don't do this, the set will be back...
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Last edited by f67bird; 12-14-2015 at 10:01 AM..
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Old 12-14-2015, 10:02 AM   #9
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Default Re: where to buy single smd led to fix strip

Quote:
Originally Posted by f67bird View Post
If you saved the old strips, you can scavenge the working leds from them.
In my experience, most of the leds are still good... depending on how they fail.
On some strips, the leds short, which causes lots of them to short eventually.
Most seem to open when they fail, on these strips there are usually one or two bad... and the rest are still good.
That's really the cheapest method, take old strips and use the LEDs that are still ok. You don't even need to solder the LED (which sometimes can destroy the LED when heated to much). Just cut part of the PCB from an old defective strip containing a good LED and glue it onto the strip to be repaired.
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Old 12-27-2015, 10:09 PM   #10
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Default Re: where to buy single smd led to fix strip

Here is what I made work.
Digi-key part#1416-1526-1-ND
The solder pads underneath the are opposite than the Toshiba/LG
cathode has larger heatsink on new ones I replaced so,
I turned them according to the pads on pcb and then reversed the polarity at connector end.
I could not tell any difference in the picture.Must replace all on that strip or rewire.
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