ggil44
Senior Member
Last Activity: 06-25-2026, 12:06 PM
Joined: 08-27-2011
Location: Tacoma, Wa
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Hello Davi.p Yes, LED backlight strips are available on Ebay for $50 to $80. I did offer to try to fix it if he helped but he decided to upgrade to an 85". As far as how he disposes of the TV, it is his TV and his decision. Regards, -
Tom66 I agree, we're not getting any younger. Besides, as we age our eye sight weakens so we NEED a bigger screen TV. Anyway, that's my story and I'm sticking with it! By the way, my friend bought a used 85" Samsung to replace his bad 75" got it home and found it was too big to fit in the space he had the 75" TV. Now he is going to have to do some remodeling to accomodate the 85" TV. Looks like it's going to be an expensive upgrade. 😄Leave a comment:
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Some how my last post was "unapproved" so I will try again. Hello Davi.p. In the U.S., Bigger is always better. If a person is allergic to bigger, they have pills it. 😁 Have a great day!Leave a comment:
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Tom66, You are right. Can't be too careful when working with TV panels. As it turned out, he decided to upgrade rather than replace the back lights so it looks like I can dodge that bullet. Again, thank you for your help. Regards,Leave a comment:
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Thank you Tom66 and tiki66 for confirming my worst fears. I will try to test the led wires this weekend with my led tester. I have changed the back lights in some 65" and 55" TV's but never a 75" and as fragile as the lcd screen is, I am not looking forward to that. Thank you again for your advice and help. I will let you know the results when I test the plug lcd plug wires this weekend. Regards,Leave a comment:
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Sony XBR-75X850C 6 blinks
Hi, Have a friend that has a Sony XBR-75X850C, 2015 that just quit on him. Now when he turns it on, it begins the startup process but when the backlight comes on for a second, it shuts down and goes to a 6 blink code. He said it just happened all of the sudden without any prior indication of a problem. I suspect it is a back light issue but would like your opinion before I give him the bad news. Thanks for the help. Regards, -
Good Advice, Thank you all for the help. RegardsLeave a comment:
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Thank you all for your help. I think lotas is right but I may mess with it just a little to kill time. If I do and have any luck, I will let you know. Thanks againLeave a comment:
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lotas, you are right on.👍 I looked at the other end buffer board and just like you said the damage was there only not as bad. I checked voltages at the T-Con now with both ribbon cables connected and the left damaged section of the buffer board disconnected. As follows, VGA, 1= 15.25v, 7= 8.13v, 8=6.97v, 14= .36v. VSSG= -7.95, TDCOM= 8.57, VGH= 30.2, CFCOM= 6.3, AVDD= 16.1, VSSO= -9.5, VCC= 3.2, V12= 12.4. I am enclosing some other pictures, (first one confirms your scenario). Second is the picture of the screen with both ribbon cables connected to the T-Con but the damaged buffer disconnected....
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Thanks for the advice. I will take a long look at it and decide whether to attempt the repair. I'm retired so I have more time than money😄. What concerns me the most is your comment "Here the board is multi-layered and the current paths inside the board could be damaged..." I have magnifiers so I could probably see to solder but it would be like trying to solder a human hair. As I stated earlier, when I tried to power on the TV with the last (damaged) buffer board disconnected, the TV came on without a picture but had a lot of red vertical lines on the screen so even if I do repair...Leave a comment:
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Hello Lotas, You are absolutely right. Is there any chance it could be repaired? Clean up, eliminate shorts, solder fine wire to bridge broken traces?Leave a comment:
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Ahh, well, I have an update. I decided to check the left buffer strips more closely and so I pulled the left leg support off and discovered the problem. The previous owner, for some unknown reason drilled or did something with the left leg support which completely hid the damage to the far left buffer strip. EasyBone, you may be right RIP. I don't know if the buffer strip is 1 layer of multiple layers. If single layer I might try to rebuild the traces (tedious) but I did disconnect the last ribbon cable to the damaged strip and powered on the TV and got multiple red vertical lines. I am enclosing...
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Thanks for the reply. So you are suggesting masking off contacts on the Left Ribbon cable to try to get a picture? Do you have any idea which ones to start with? RegardsLeave a comment:
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OK, Thanks Lotas. So if I understand you correctly, the T-CON board is faulty supplying the Left Ribbon cable. T-Con boards are "relativity" cheap so it would be better to replace the T-Con board than to try to chase the bad component(s) effecting the Left Ribbon cable power. EazyBone, not quite ready to RIP the M65-E0 but I might wish I had taken your advice later 😉.Leave a comment:
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Hello lotas, When you say "power supply" are you referring to the main power supply or the T-CON board?...
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Had to be gone for awhile, voltages on T-CON with each ribbon cable disconnected R disconnected VGL .04v, VGH .73v VGA 0, 0, 0, 0v. L disconnected VGL -10.51v, VGH 30.2v, VGA1, 15.2v, VGA7, 8.1v, VGA8, 6.9V, VGA14, .35v...
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Hello Lotas, obviously I wasn't getting those voltages on the T-CON board. Does that suggest a main-board problem or power supply? I'm thinking main-board since the TV powers on and the back lights work.Leave a comment:
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Everything seems to be in good physical shape. Yes the red light for optical out plug is lit. Thanks for your help....
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Vizio M65-E0 T-Con voltages:
VGA 7 .01v
VID8 TCON 1.83V
VID1 TCON 1.08V
VCC 3.28V
VGH .78V
V3D3 3.27V
TDCON .02V
VGL .05V
AVDD .86V
SCL 3.27V
WP .1V
SDA 3.27V
J106 STARTING PIN 1 .1, 3.27, 3.27, 0, 0, 3.27V
V12 12.48V
ANYTHING ELSE NOT REPORTED WAS 0v. Regards, Gil
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Hello nomoresonys, I found F101 and checked voltage to be 12.48v on both side of the fuse. ThanksLeave a comment:
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