This is for information only at this time. The TV is no longer acting up. Sorry I didn't take enough picture during testing.
I received this tv for repair. The local repair shop claimed it was a bad panel and a quote of $1900 was given. The right half of the screen was discolored and having ghosting problems. Since it was half the screen I was thinking t-con or tab bonding. I started by removing the back of the tv and checking cable connections. I was unable to produce any changes with any cables. Tapping on or trying to flex the body of the tv did not result in any changes either. I tried freeze spray on the t-con through the cover with out change. There is a large cover over the t-con which prevented adjustment of the ribbons to the panel. I removed the large cover with no change. I had to disconnect the 4 ribbons to the t-con to remove the second cover because I did not want to remove the tape connecting the cover to the frame. After hooking the cables back up with the board connected to the back by 2 screws the tv proceeded to continue acting up. I unhooked one cable at a time moving from the side of the tv acting up. First ribbon produced colored vertical lines. Two "sections" did change/move the colored lines. Hooked up the first ribbon and unhooking the second produced a half black screen. The "good" side of the screen did not change on either attempt. I hooked the second ribbon back up and removed the middle ribbon which corresponded to the good side. This blacked out the good side but also produced a good picture on the "bad" side. I hooked that ribbon back up and the tv went back to the right half ghosting again. I finally removed the outside ribbon to the good side and the tv produced solid color lines on the good side. The "bad" side produced a good picture. I hooked the ribbon back up and the tv worked fine for a couple hours. I put the tv back together checking as I went to make sure it still had a good display. To put the tv back together I had to remove and reseat the 4 ribbons again. Upon completion the tv had a good display. The following afternoon, about 15 hours later, it acted up again. This time I checked it as I removed pieces. The tv acted up until I removed the large cover that hooked the back supports, power and main together. Once that was removed the tv started working fine again-WITHOUT touching the t-con or cables. After one day of it working fine I put it back together without installing the top screw for the cover plate. Two more days the TV is still working fine.
I received this tv for repair. The local repair shop claimed it was a bad panel and a quote of $1900 was given. The right half of the screen was discolored and having ghosting problems. Since it was half the screen I was thinking t-con or tab bonding. I started by removing the back of the tv and checking cable connections. I was unable to produce any changes with any cables. Tapping on or trying to flex the body of the tv did not result in any changes either. I tried freeze spray on the t-con through the cover with out change. There is a large cover over the t-con which prevented adjustment of the ribbons to the panel. I removed the large cover with no change. I had to disconnect the 4 ribbons to the t-con to remove the second cover because I did not want to remove the tape connecting the cover to the frame. After hooking the cables back up with the board connected to the back by 2 screws the tv proceeded to continue acting up. I unhooked one cable at a time moving from the side of the tv acting up. First ribbon produced colored vertical lines. Two "sections" did change/move the colored lines. Hooked up the first ribbon and unhooking the second produced a half black screen. The "good" side of the screen did not change on either attempt. I hooked the second ribbon back up and removed the middle ribbon which corresponded to the good side. This blacked out the good side but also produced a good picture on the "bad" side. I hooked that ribbon back up and the tv went back to the right half ghosting again. I finally removed the outside ribbon to the good side and the tv produced solid color lines on the good side. The "bad" side produced a good picture. I hooked the ribbon back up and the tv worked fine for a couple hours. I put the tv back together checking as I went to make sure it still had a good display. To put the tv back together I had to remove and reseat the 4 ribbons again. Upon completion the tv had a good display. The following afternoon, about 15 hours later, it acted up again. This time I checked it as I removed pieces. The tv acted up until I removed the large cover that hooked the back supports, power and main together. Once that was removed the tv started working fine again-WITHOUT touching the t-con or cables. After one day of it working fine I put it back together without installing the top screw for the cover plate. Two more days the TV is still working fine.
Attached Files
Comment