Simple question, am I correct in assuming that a properly working TCON will show the 12V feed through the SMD fuse?
Thanks!
Thanks!
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Re: Measuring TCON Voltage through fuse
Your looking for around 12 volts on each side of fuse black - probe on metal chassis back red probe on each side, that way you know that you have 12 going in and 12 going out and that your fuse is good. -
Re: Measuring TCON Voltage through fuse
So you have 12 volts on each side of fuse? It would be going into tcon from mainboard not power supply.Last edited by nomoresonys; 08-01-2020, 09:19 AM.Comment
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Re: Measuring TCON Voltage through fuse
No, I have 4.8 mV on both sides of the fuse. The TCON_VCC12V line that runs from the PSU to the TCON has 12 V on all terminals. Those lines feed into the connector that is the right of the LVDS ribbons.
Sony XBR65X850F for what it's worth.Attached Filesif you find these attachements useful please consider making a small donation to the site
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Re: Measuring TCON Voltage through fuse
Ok, was a guess, since there was no model and no pics. Do you have 12 v coming out of the connector? tcon fuse is good? has continuity?Last edited by nomoresonys; 08-01-2020, 10:32 AM.Comment
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Re: Measuring TCON Voltage through fuse
Test CN6401, test number 3 below, there's a label there see it, list the pin number, name, and voltage both in standby/tv plugged in but off and when you hit the power on, video 2 is a demo of testing.Last edited by nomoresonys; 08-01-2020, 10:44 AM.Comment
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Re: Measuring TCON Voltage through fuse
If you have 12 volts on pins 3,4,5 of the white connector, you should have it on that end of the fuse, If not, either the pins of the plug are not making contact with the trace or the trace between the pins and the fuse is open.Attached Filesif you find these attachements useful please consider making a small donation to the site
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Hello all ~
Hope this finds you well. This LG 82UN8570AUD (April 2021 model) 4K UHD television has full audio capabilities but video is compromised / problematic.
When I picked up this large LG tv it had a full black screen upon startup. Previous owner said it just went black one day. No popping sound or anything else of note.
I got the display to work by taping off several traces of the right-hand side ribbon cable on the TCON that leads from TCON to PANEL. However, despite dozens and dozens of attempts to find the right combination / range of traces taped... -
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This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.
I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match...
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