LG49Uf7600 has half screen green and goes on and off in loop. All capacitors are good. Guessing it's tcon but will tcon also fix on and off issue ? I am getting sound and lg logo on half screen.

SOURCE: black screen

first try the address board or buffer board.if this
does not repair it,the panel is defective.

SOURCE: Acer Aspire One loops on start up screen.

Try tapping F8 when the acer window shows, when it shows the muliboot option, scroll down to "Last Known Good Configuration" and hit enter. If it does not boot normally, you will have to get an external dvd drive and boot off the drive with a windows installation disc to perform a repair.

SOURCE: LG Renoir wont turn on

Hmmm, I have the same problem as well. I have just recently exchanged my LG renoir for another one with my buisness contract insurance due to the previous handset's camera not working.
I have had this new one for about 4 days and everything was fine until last night. I sent a text and looked at my phone and it just went black. The backlight still on, the green button, the menu and the red one all light up. Even when I take the battery in and out, it just goes to the lights, if im lucky, i would see the logo LG then it goes back to just all the backlights on. I am wondering if I can reset the phone but I get my upgrade in April. To be honest, I cannot wait.

SOURCE: i have a htc desire

there must be an application creating that prob. most probably a third party software u have installed. u have to hard reset ur cell phone. consult user guide of ur cell for instructions

SOURCE: I have a toshiba regza 32hl67us that was bad.I replaced the tcon board and it fixed it. I replaced the Tcon board and it fixed my issue. A couple of days later I had to reopen the set to reconnect th

check the cable you didn't put them back properly