Hello everyone…I hope someone can help me to figure out…i have a sony tv which the screen is black but i can hear the sound …so I try in another similar tv a t-con , motherboard and all works perfect but in this tv i see only a black screen with illumination…the display is not broken ..so I think the problem is on the buffer board …someone can help me? Thanks in advance
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Re: Sony KD-55XE8505 black screen with sound
When you say try a similar tv, you mean you replaced the tcon and motherboard with the parts from a 55xe8505 or a different model that was similar? -
Re: Sony KD-55XE8505 black screen with sound
Thanks for answer to me….the same model of tv …i have two tv the same model…that’s why i can check the components from one tv to other tv ….Comment
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Re: Sony KD-55XE8505 black screen with sound
the same old defect, probably a bad gate driver, but hope for a bad cap on panel stripe board..Comment
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Re: Sony KD-55XE8505 black screen with sound
Can you help me to find a solution ?Comment
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Re: Sony KD-55XE8505 black screen with sound
if you are familiar with multimeter, open the panel stripe board covers and inspect the pcb to find shorts on the caps, or at least low ohmsComment
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Re: Sony KD-55XE8505 black screen with sound
I have two tv , both are the same model …one works perfect..the other one with black screen …i try to inspect looking the other tv …but seems like they have a same voltage…i try with a tape on flat cable and i see the left side a picture with vertical bars white and black …where is white i can see image…I hear in most of this cases I should remove a diod or I should cut the cvk line …but i don’t know how to find itComment
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Re: Sony KD-55XE8505 black screen with sound
Your issue is likely with the panel or the circuit boards connected to it. You'll have to use a multimeter to find the bad component if the problem is on the panel boards. If its within the panel itself you will need to cut certain traces to eliminate the short.
These things are not for the inexperienced.
You are dealing with VERY small components and very thin/small traces.
One slip or false move and your panel will be inoperable.
Most times when you have panel issues the TV is not worth dealing with.
If you REALLY want to keep/save this TV and the issue is with the panel then take it to a professional who is knowledgeable of this repair. Even among the repair field you'll hardly find someone who will want to take it on. Not profitable, can be tedious and time consuming and it'll likely not be financially wise vs buying a comparable 55" 4K TV these days.
I speak bcos I have been where you are many times.
Ultimately I sacrificed (unwillingly!) them to gaining more experience for the future.
Good luck!Comment
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Re: Sony KD-55XE8505 black screen with sound
I Wanna thank you all for advice….i just bought a new tvComment
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I have a 2019 75" x950g, and while playing a movie, the screen suddenly went dark in a weird way, where it faded towards one corner into being fully black. Now the TV turns on, and the backlight comes on, but there is nothing displayed except black. Sound still comes through the TV speakers, and i have tried doing a hard reset using the volume - and power buttons while plugging the display back in, but it did not fix it. I can confirm that pressing buttons on my remote is still doing "something" because I'm hearing sound still, even though the screen is black.
Does... -
I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.
I ordered a supposedly ‘new' Tcon board this time, and... -
Hello,
YouTube video of the problem encountered: https://youtube.com/shorts/q7TLNv36LUo
I am a pro and I have a problem that I have never seen despite my 7.5 years of experience on my own and my thousands of repairs, on a customer's Dell G3 15 3500.
On this PC I have already changed the complete palmrest because the keyboard was no longer working properly.
I also changed the screen because the PC fell and the screen was broken.
I changed the battery with a new and original battery.
I also had corrosion/oxidation on the... -
Good morning.
I have a problem with my LG Smart 43UF640V TV. It starts, the backlight comes on but nothing is displayed on the screen and there is no sound.
I thought it was a TCon problem and ran various tests. If I disconnect one or the other of the cables from the tcon to the panel then the screen is white on the side where the cable is disconnected and black on the other side. If the two cables are disconnected the screen is completely black.
In the 4 configurations I measure exactly the same voltages on the tcon card (model V15 43UHD TM120 Ver0.4) :
HVDD : 7,28... -
Hello Everyone,
This is my first post so I will try to be as precise as possible without making this post too long winded. Unfortunately I don't have pictures of the original problem but I included images of the TV internals.
I have a Sharp 70LE660U. The problem started a few months ago with the bottom row looking out of sync and was dark on the left side and then fading to transparent on the right side. Shortly after, a dark cloud appeared in the center of the screen. The dark cloud started small and shaded but the image was visible. It also affected the menu area....
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