Re: LG 55EC930V black screen
thanks, im away for a couple of weeks but will try that when i get back. i will respond here once ive tried it
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Re: LG 55EC930V black screen
no idea what was heated. the powerboard is fine though it was well tested. might try and heat up the T-Con board as i think thats where the problem is. wish there was a way to bypass everything just to get the screen to light up or something so i can rule out a bust panel.
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Re: LG 55EC930V black screen
None of that seemed to work, im still stuck with a black screen
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Re: LG 55EC930V black screen
if i plug an hdmi cable from pc the computer detects the tv
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Re: LG 55EC930V black screen
right i an getting some light on the screen in both top corners. it doesnt meet in the middle and it is curved, not a block.
i can only see it in total darkness.
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Re: LG 55EC930V black screen
Do i need to try and click the mp4 file or just have it on the usb stick?
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Re: LG 55EC930V black screen
Sorry F1 fuse is 11.7v on both sides
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Re: LG 55EC930V black screen
voltages when poweronly is active
p201
1. 3.42v
2. 2.7v
3. 3.54v
4. 0v
5. 3.54v
6. 3.4v
7. 0v
8. 0v
9. 24.5v
10. 24.4v
11. 0v
12. 0v
13. 11.7v
14. 11.7v
15. 11.7v
16. 24.4v
17. 0v
18. 0v
p202 GND is 0v
24VD is 23.8v
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LG 55EC930V black screen
hi all, thought i would start a new thread and see if i can get this sorted.
I bought an LG 55EC930V for £50 at the weekend, i was told it was clicking and it went off, repair guy came out, hairdryered something and got it back on then fiddled with the relay and broke it.
i have replaced the relay and have done all the tests suggested in the other threads i found and am getting all the correct voltages where and when they should be there. I am certain the fault is not on the power board.
now i am stuck again and need some direction, when i press the...
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Re: LG 55EC930V OLED Is panel OK?
did you have any luck? i have the exact same issue.
ive tried lots of things so far, i need to make the ir thing and try that next. just cant get anything on the screen.
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Re: LG 55EC930V power supply problem
ive just noticed a heatsink type thing on the main board and it is really hot to the touch, i think that may be the area i need to look at first
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Re: LG 55EC930V power supply problem
yeah it clicks once when the power button is pressed, and again when is turned off.
ive not checked the other threads as i was lead to believe it was just a power board fault.
can you recommend any threads that may help or should i just have a search?
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Re: LG 55EC930V power supply problem
the relay has been replaced but the only thing its doing new is clicking when i power it on, still no screen coming on
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Re: LG 55EC930V power supply problem
the coil is definitely broken, i have an end and loose wires!
i will get it changed over and see what that does. if i dont have one at work ill get it ordered and will report back.
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Re: LG 55EC930V power supply problem
this is the relay
[url]https://uk.farnell.com/oeg-te-connectivity/sdt-s-112dmr-601/relay-spst-no-250vac-30vdc-10a/dp/1892000[/url]
i wont be able to remove the relay until i get to work tomorrow. hopefully i will have a replacement for it there tooRe: LG 55EC930V power supply problem...work tomorrow.
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Re: LG 55EC930V power supply problem
thanks for the help so far, i will get the relay replaced and see what happens next.
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Re: LG 55EC930V power supply problem
after close inspection i seen the relay winding's are damaged/broken and getting 80Ω
would that be the cause for it not powering the screen up?
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Re: LG 55EC930V power supply problem
chassis ground for the relay coil
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Re: LG 55EC930V power supply problem
p201 values when in standby i have 3.54v on pins 3, 5 and 6
when i press power i get
1. 3.42v
2. 2.7v
3. 3.54v
4. 0v
5. 3.54v
6. 3.4v
7. 0v
8. 0v
9. 24.5v
10. 24.4v
11. 0v
12. 0v
13. 11.7v
14. 11.7v
15. 11.7v
16. 24.4v
17. 0v
18. 0v
p202 GND is 0v
24VD is 23.8v
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Re: LG 55EC930V power supply problem
i have the relay open, the power across the coil is showing 173v in and 168v after the coil. the contacts in the relay are not touching and i dont have any voltage on those contacts.
with the relay contacts open i have retested and have 398v on the 4 main capacitors
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