Indeed I have found many differences between those mainboards.
Unfortunately, after I changed several resistors, removed one DC/DC regulator swapped 25Q80 flash, board works worse than before.
TV does power cycle with backlight only, no even logo displayed....
marekk
Member
Last Activity: 04-14-2025, 06:48 AM
Joined: 03-11-2013
Location: Bucks
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Thank you will try that, in the past I have successfully moved screens (glass only) between 55RU8000 and 55Q60rat so I know that either mainboard can work with this panel but now the sizes of the panels are different....Leave a comment:
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LED panel type for QE75Q60RAT
Hi,
I'm trying to repair 75" QE75Q60RAT with a faulty main AV board after a lightning strike.
I got a main board for 55" QE55RU8000 which works in this TV but the picture is bright with very low contrast.
In the service manu I have changed LED panel type to 75" 75L1AU0NR but that didn't help, unfortunately.
Could you let me know which panel type is in the service menu for this model?
TV is based on CY-RR075FGHV1H
I would be very grateful
Best regards
Marek... -
Re: Philips 55PUS6754 with lines after few seconds
Yes, I have replaced tcon and I got very similar lines after a few secondsLeave a comment:
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Philips 55PUS6754 with lines after few seconds
Hi,
I have tried to replace TCON but it didn't help.
The strange is that it shows Philips logo before the lines. Tried to cover some of the lines with tape on the ribbons to the screen but had no success.
screen: tpt550u2-eqya3.g
tcon: 6870C-0769A
I will appreciate any help
Many thanks
Marek...Last edited by marekk; 11-03-2022, 03:03 PM. -
Re: Panasonic TX-P50VT50E completely dead!
If lines were vertical it means more then likely your main av card died.
It's very hard to find item.Leave a comment:
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Re: LCD screen swap between UE65JS9500 and UE65JS9000
Both models are curved.
I know that backlight, power supply and inverter are different.
It's a bit of gamble as I don't have Ue65JS9000 yet. I'm thinking to buy it.Leave a comment:
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Re: Samsung QE55Q700T
Have you managed to repaired this TV?
I got the same problem.Leave a comment:
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LCD screen swap between UE65JS9500 and UE65JS9000
I got UE65JS9500 with cracked screen and I wonder whether it would be possible to use LCD panel from UE65JS9000.
I know that one connect box works for both models, TCON and control board from the TV looks the same so I'm pretty sure it will work.
I would be very grateful if anyone with more experience would give more information about it.
Many thanks
Marek -
Re: More fake parts
I had some fake parts too from utsource but paid via PayPal and I have opened a case on PayPal so they refunded me.Leave a comment:
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Slight backlight problem after replacing main AV card on LG 65UB680
Hi,
I was struggling to find replacement of the main AV card for 65" LED LG TV 65UB680 and finally I have purchased main board for 79" model 79UB680.
Board does fit and works except slight problem with backilight at startup where two bit darker bands are visible. As soon as picture is displayed fault is not visible. I believe that such fault is caused by different firmware design for bigger screen.
Could you let me know how to access service menu on that model to change screen size?
I have tried common metods like "Press and hold <OK>...Last edited by marekk; 06-23-2021, 08:55 AM. -
Re: Panasonic TX-P42VT30E 7 blinks of death
[url]https://alpengeist-tvrepair.blogspot.com/2015/04/panasonic-tx-p42st30e-tnpa5330-board.html[/url]
here you got all that you need to doRe: Panasonic TX-P42VT30E 7 blinks o...you need to doRe: Panasonic TX-P42VT30E 7 blinks of death
[url]https://alpengeist-tvrepair.blogspot.com/2015/04/panasonic-tx-p42st30e-tnpa5330-board.html[/url]
Leave a comment:
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Re: Panasonic TX-P46GT30 Saved from the beasts.
BA is for 55" it will not work in 46" or 50" TVLeave a comment:
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Re: TC-P50UT50 3 fast blinks
I had ones such problem and it was Main AV board,Leave a comment:
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Re: Panasonic TX-P50UT30B 6 blink error
Thank you very much for those slides, I haven't seen them before.Leave a comment:
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Re: Panasonic TX-P50UT30B 6 blink error
only those ( PC685, PC581 and IC921) came from faulty SN board like TNPA5330 or TNPA5457 with faulty buffer chips which I have used as source of parts.Leave a comment:
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Panasonic TX-P50UT30B 6 blink error
I'm struggling to fix Panasonic plasma TX-P50UT30B.
TV doesn;' turn on and LED blinks 6 times.
Faulty is SC board like usually it this case it's TNPA5351 AF
I have changed already Q622, Q623, Q600 and Q661 which all were shorted.
After that TV still doesn't turn on showing 6 blinks, no shorts fortunately after powering up.
Later I swapped from my other death boards PC685, PC581 and IC921 but it didn't change situation unfortunately. Both buffers I swapped from my TX-P50ST30B.
I have found no other shorts.
I will appreciate any help to solve... -
Re: Panasonic TX-L42D25B 4 flashes - bad LED backlight
Hi,
I got whole set of those LED strips from similar model if you are interested.
Regards
MarkLeave a comment:
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Re: Panasonic Plasma TC-P50GT30 7 blinks SC board shorted
6 blink error is caused often by Q531, IC502Leave a comment:
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Re: Panasonic TX-P50GT30B screen problems
VSUS in service mode is LOW, I couldn't even change it to HIGHLeave a comment:
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