Hi just want to light the leds from its powerboard only, which pins to I bridge please, all pics should be above,
Thanks chums
Thanks chums
Attached Files
-
-
Re: LG powerboard, want to just bring on leds
Drv on to 3.5v -
Re: LG powerboard, want to just bring on leds
Cheers ChumComment
-
Re: LG powerboard, want to just bring on leds
mmmm, not come on ? am I missing somethingComment
-
Re: LG powerboard, want to just bring on leds
What voltage do you have as standby voltage?Willing to help but I'm no expert.Comment
-
Re: LG powerboard, want to just bring on leds
I take it you've already bridged 3.5 to pwr-on?Comment
-
Re: LG powerboard, want to just bring on leds
Yes it's bridged , it's from a damaged screen, strangely I'm reading the input volts as 270, can't be right, but I have double checked , will check all voltages in a moComment
-
Re: LG powerboard, want to just bring on leds
Wait so the Led voltage is 270v ?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
-
-
Re: LG powerboard, want to just bring on leds
pfc is not so important in europe, we start with a decent voltage.
that said, he should have over 300v on the main cap even without pfc.Comment
-
Re: LG powerboard, want to just bring on leds
Was about to say I have had Vestel supplies fire on a 42" Cfl backlight and some Led ones fire on the Bl with faulty Pfc and the bulk cap voltage being 330v dc. On 240v ac rectified its plenty with out a Pfc booster to work the set but the output might become a little unstable.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
-
Re: LG powerboard, want to just bring on leds
Lg's are weird, you need to find a way of getting 1.2v to the dimming pin to get the Led driver to come on.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
-
Hi there !
I'm having an issue for several weeks with my quite old K70 LUX RGB keyboard. I haven't used it for few months, and once I setup up again my desktop computer, I got several dead LEDs on that keyboard. I tried the Corsair troubleshooting thing (disabling options in iCUE, ...) but nothing changed so I conclude that for some reason some LEDs went in retirement...😅
Decision taken to change these LEDs as I have access to desoldering iron and binocular magnifier, I wrote a ticket to tech support, hopping to obtain the LEDs reference and... They refused to tell me 🙄...10-08-2024, 11:58 AM -
So I use this TV daily as a second monitor for my PC or my Playstation - at one point a few months back I tried to fix the problem - but in the process, I figured out something that works so I haven't posted this for awhile. It is an annoying trick to have to do though, so I decided to post about it to see if anyone could spot what's wrong. It baffles me because it works on it's own half the time.
When I first got this TV, I was told it wouldn't turn on, and of course I did the flashlight test, and the image was there. Also, the red LED on the front indicated that it had power (it... -
Hi all,
I have what should be a simple job but is causing me issues. There are three LEDs (yellow, green and red) on the indicator panel of a solar PWM controller and these have broken off. I need to replace them but I am unsure of the voltage drop across these. I don't want to replace with random LEDs in case they blow.
I took one of the LEDs out of circuit, put 19V across it with a 500 ohm resistor in series and there is a drop of about 13V across the LED, and this seems to increase as I increase the input voltage.
I thought I could just put a resistor... -
i have replaced many leds strips that have changed blue when they are worn
and the new replacements are perfect white
but when fault finding do quantum leds always look blue? -
Hello everyone
I'm new to LED strip LED replacement.
The original LED comes with a single internal LED or chip. I only get at the moment LEDs with two internal LEDs or chips.
I understand that this is due to the tone of the light they emit.
My Doubt is:
Can I use the LED with two internal chips without problem?
Will there be much difference in the picture?
I'm going to replace all the LEDs.
Both LEDs (original and replacement) are 3V and the same size....03-04-2022, 04:03 PM
Comment