I wanna build something that I can hook up to each individual led strip to light them up any help
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Re: can anyone help me build something to test led strips
Depends on how many LEDs you have in series on the strip. Figure about 3.2 volts times the number of LEDs. Sometimes I just use three 9 volt batteries connected in series when I have 10 or 12 LEDs on a strip. If your intent is to test without opening the panel, also remember to test the current each strip pulls. A strip with a shorted LED will still light, but if the power supply is designed with overcurrent protection, it will cause it to shut down.------------signature starts here------------
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Re: can anyone help me build something to test led strips
http://www.ebay.com/itm/Precision-30...-/361380526604Comment
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Re: can anyone help me build something to test led strips
0~60V will be more useful for testing the LED strip up to the point.
http://www.ebay.com/itm/5A-60V-Preci...kAAOSw~bFWJNAjNever 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: can anyone help me build something to test led strips
IMHO voltage sources are inappropriate for testing LEDs. I would build a 150mA current source.
Would it be possible to adapt the electronics used in 12/24V LED panels for RVs?Last edited by fzabkar; 11-03-2015, 12:47 AM.Comment
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Last edited by budm; 11-03-2015, 09:43 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: can anyone help me build something to test led strips
Here is another approach using a cheap LED inverter (US$15 - $20):
https://people.xiph.org/~xiphmont/th...pleboost.shtml
https://people.xiph.org/~xiphmont/th...continuous.png
https://cdn.badcaps-static.com/pdfs/...0c5ce1ce7a.pdf (DF6113 datasheet)
You could program the LED current via Rout1 and Rout2. Rout2 could be varied either by using jumpers or by way of a rotary switch.
The output voltage limit could be set by varying R2, or by adding a resistor in parallel.
The output power limit is determined by Rmos.
The IC's datasheet recommends a maximum output/input ratio of 5:1, so a 12V input should allow for a maximum boost voltage of 60V.Comment
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Re: can anyone help me build something to test led strips
10mA would be more than useful for lighting up LEDs. You could design a boost converter to output say 300V at up to 10mA, with direct current limiting, and it would drive most LED strips.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: can anyone help me build something to test led strips
Why have you started a new thread ? I gave you advice on how to build a small set up using two double A batteries in series. This little set up costs very little and works great.
I will link the video:
https://m.youtube.com/watch?v=eEJoPCa7Kt0Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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Re: can anyone help me build something to test led strips
He wants to light up the whole LED strip.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: can anyone help me build something to test led strips
Ahh right ok my bad.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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Re: can anyone help me build something to test led strips
maybe something like this?
https://www.youtube.com/watch?v=ZSJ4ETkLTF4Comment
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Re: can anyone help me build something to test led strips
Notes about the LEDs, some of those LED uses in the edge lit type strip are two LEDs in one package (two LEDs connected in series), so if it has 20 LEDs bodies, it actually has 40 LEDs so when you test it based on 3V per LED, the strip will not light with what you think the supply Voltage should be.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: can anyone help me build something to test led strips
High Voltage adjustable power supply with current limit.
You can use two 6.3V filamen transformer hooked up back to back to give isolate 120VAc to supply rectified 170VDC for feeding the circuit.Attached FilesLast edited by budm; 11-03-2015, 05:29 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=24809Comment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hello
I have power adaptor(220V/input, 12V 1.2A/output) which has symptom of fluctuating output DC voltage between 11.5V-12.2V.
So I opened its plastic case and when switched it on, I heard constant tik tik sound from inside its PCB.
I measured DC voltage between negative and positive pin of the largest capacitor(400v 10uf) and it was measured contant 300V.
I also measured ESR value of all capacitors and I noticed that one of capacitor(KMG 16v 470uf), which located in the secondary side, have high ESR value(10 ohm),So I replaced it with same specification NXH capacitor.... -
Hi There!
I bought a broken 32" TV today. It has sound but no image. I checked with a flashlight and it was missing backlight
Disassembled down to the led strips and found this TV has been serviced before. Not sure if it was fixed, worked again for some time, and broke again, or maybe last repair wasn't successful
Looks like on previous repair, the center LED strip was replaced with a different model, 7 leds in it instead of 8, but when checking LEDS one by one, leds on the center strip were brighter with same test voltage (multimeter in DIODE mode) so maybe the... -
Hi There!
I'm trying to help my friend who owns a restaurant be just bought.
He has a very long LED strip running along all the walls and columns. The strip is attached facing down 2in above the floor, using a wall panel that ends in a metal rail that finishes the panel underneath
It's stuck using, I guess, the 2 sided tape that comes with the strip
The issue is that like 1/2 of the full length, including 1/2 one wall, another entire wall, and one column, flickers after 4 or 5 minutes ON. Particularly it flashes staying OFF most of the time and flashing ON for 1 tenth... -
Hello
I have a big problem and that is that in some cases when repairing active pfc power supplies I cannot work with a test lamp. I can only get help with 5 volts standby and for starting and starting I have to work without a lamp and this way there is a possibility of parts exploding and other parts being added.
Sometimes with a multimeter test the problems can be reduced to some extent, but I had several cases that had to be tested on and online and recently two varistors exploded. They had terrible resistance because the power supplies were over 800 watts.
Is there a way...
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