Toshiba Televisions

Sit in front the TV, you will need to be able to access keys on the remote and the TV at the same time. Turn the TV "ON" Turn the volume all the way down to 0. Press and hold the TV's front panel volume down button, and then press and hold the remote's "9" button for about a second. The service mode will appear. \ -or- Press "MUTE" on the remote. Press "MUTE" on the remote again, but this time continue to press "MUTE". While still pressing down on "MUTE", press the "MENU" button on the TV front. Release the "MUTE" button. You should now have an S (for service mode) displayed in the upper right corner. Pressing MENU again should bring up the first service option Pressing the Channel Up/Down keys brings up the different service options. Pressing the Volume Up/Down keys changes the associated HEX value. One you have entered the service mode, you can bring up the various test screens by pressing the "TV/VIDEO" button. For example, to minimize screen non-linearities, press the channel down key until PARA appears on the screen, with the associated default value (this is the parabolic adjustment option). Then, bring up the cross-hatch pattern by repeated pressing of the TV/VIDEO button. You can then use the volume Up/Down buttons to change the PARA settings, this should cause the grid to bow in (concave) and out (convex). Adjust until the grid is the most linear. The numbers 1,2,3,4,5,6 jump to different items. 9 displays SELF CHECK The number 7 displays a grid. There's a blinking cursor in the upper left corner. The numbers 2,4,6,8 move the cursor. 3 cycles the colors (RGB), 5 stops the cursor from blinking, then when you push 2,4,6,8, you are adjusting the convergence at that point for the selected color. Pushing 7 again gives you a "warped" grid for a few moments. Pushing 7 again removes the grid from the screen.