Re: eax64905001 No Pfc Help ?
MP3202 LED driver IC.
http://www.magnachip.com/product/Des...id=MAP3202SIRH
http://www.datasheet-pdf.download/ma...d-blu-drivers/
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Re: eax64905001 No Pfc Help ?
Image of the bottom of the board:Attached FilesLeave a comment:
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Re: eax64905001 No Pfc Help ?
Image of the Ic, couldnt get a clear shot of the Pn but its:
MAP3202
DR8839GPAttached FilesLeave a comment:
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Re: eax64905001 No Pfc Help ?
I would like to know what the feeding Voltage for the Boost converter is, it looks like it is fed from the +LEG of that filter cap C214, so may be the feeding Voltage is too low.Leave a comment:
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Re: eax64905001 No Pfc Help ?
Its at 45v with the Tv on does not go down to 24v. Will get you a Pn in a moment mate.Leave a comment:
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Re: eax64905001 No Pfc Help ?
So the feeding Voltage to the LED boost converter circuit is 24VDC (on C214) and the output to the LED connector without LEDs connected only shoot up to 45VDC and then settle down to 24VDC?
What is the P/N of the LED driver IC801?Leave a comment:
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Re: eax64905001 No Pfc Help ?
Im getting voltage across both caps, one is for the 24v and other is for 12v etc. Getting good 24v but the driver is not being turn on enough.Leave a comment:
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Re: eax64905001 No Pfc Help ?
https://spares2repair.co.uk/lg-32ln5...01-lgp32-13pl1
Is that your board? If it is, it does not have PFC circuit.
PCBA LG EAY62810301 (LGP32-13PL1) Power Supply Unit.
Pictures provided by shopjimmy.Attached FilesLast edited by budm; 04-20-2016, 01:32 PM.Leave a comment:
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eax64905001 No Pfc Help ?
Hi chaps, have this 32" Lg 32LN5400 with no backlight. Found that the Led drive voltage is only 45v which is way too low it should be 70v to drive 21 Led's. I have checked the Led's and one was bad but after replacing it the issue is still not solved. Found that all Pson and Drive on pins are at what they should be but im only getting 330v across the Pfc caps which again is way too low should be 380v to sustain the outputs.
Any ideas ? If not can someone link the schematic as cant find it thanks.
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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
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