Question about Dinex DX-LCD26-09 26 in. HD-Ready LCD TV

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Hi everyone, Im new to this thread, but I have very high IT experience. However, I have a problem that I just cant figure out. My Dynex tv randomly started acting up. All my colors and channels are rediculiously fuzzy, and the pixels are all out of sync and shaking all over the place. I have standard cable connected to this TV so I get my 70 standard channels plus locals. However, my locals I get in standard and digital HD. The weird thing is my local channels I pick up in HD are perfectly fine. No problems what so ever. However, any other channel is messed up. Thus i thought it was maybe the tuner so I checked my other connections. I checked my xbox360 which is connected through component HD and it has the same problem. tried 480p, 720p, 1080i and nothing. I also checked my laptop through VGA and even at different resolutions nothing is working. I called dynex and the guy had no resolution. If someone has an answer any help would be appreciated. Here are some images. Also im going to try to connect PS3 through HDMI and see if it makes a difference. Any help would be appreciated. Also all the tv settings and options menus are displayed fine. Model # DX-LCD26-09 Tv In CBS HD Xbox 360 random game screen Xbox 360 game screen Component input as Xbox 360 off Xbox 360 screen (note the TV menu is open, note that it looks prefectly fine) Xbox home screen Load screen ESPN non hd channel Fox local Hd channel I also tried different cables and connections, no difference. Im a bit desperate here so anything is appreciated. Thank You

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Check the connection to your tcon board and main av board. if the connections are good one of these boards is more than likely bad. Google their part numbers and see if that board has a known issue


Posted on Apr 05, 2011

  • 2 more comments 
  • mridha3 Apr 06, 2011

    checked all the connections, but nothing is working. Still have the same result, shocked myself a bit aswell but luckely the tv still works. I don't know if this is a t-con issue however, because as you can see in the images linked above, the Over the Air HD channels work perfectly, but everything else is messed up. Could this be a tune issue??

  • mridha3 Apr 06, 2011

    also i tried a reflow of both the tuner board and the tcon board with my heat gun with no success. Going to check the parts now.

  • mridha3 Apr 06, 2011

    sorry nvm, i reflowed the inverter and tuner board with no luck. The tconn board is directly connected to lcd without removable connections except one, all connections look fine but nothing is working. Should I attempt to reflow tconn board?

  • mridha3 Apr 06, 2011

    HDMI input also works perfectly, no problems.



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