I have a Toshiba 32AF41 tv. It has been shutting off by itself but right before it's about to shut off I notice thin red horizontal lines across the screen then the entire screen turns red and shuts off leaving the red power light blinking. I am not able to turn the tv back on unless I unplug and then plug back in. Any ideas? Thank you.
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Re: red lines across screen
Wow this set has several problems that cause almost the same symtoms. There is a b+ filter cap off the flyback that supplys screen drive voltage th the crt that gets leaky and gets warm when the sets on. Also theres a resistor that feeds the voltage that gets warm and a cold solder connection appears but its dosent look like a bad solder connection so just resolder it. as a matter of fact most of those largewr resistors in this set causes all sorts of complaints soI resolder most of them just to stop any problems and a friend in the tv business still told me in one case he had an intermittant crt. and x ray protection cuircut problems.. Hope this helps GOOD LUCK
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the problem is vertical collapse,i am not so sure you can trouble shoot this on your own but you can send the board to eithor pts electronics or tristate module for repair
to get a price get the number off the sticker--left hand board(looking from the back) it will start CTC195---- write down entire number before you call them
You can adjust the lines and make them straight. You can also in the same process, make them line up.
1. With the TV on, press the mute button the remote control so that you have picture but no sound.
2. With remote in one hand (holding it as far from the TV as you can but still be able to reach the TV with your other hand), press and hold the mute button again, with the other hand, using the control panel underneath the screen, press the menu button on the TV set.
You will notice an "S" on the screen on the right hand side about 2/3 from the left, halfway up the screen (If you did this right).
This means you are in service mode.
With the remote, curse right only once and you will have some information displayed in the upper left. The top line is Item, the one underneath is Data.
Press "7." This will display the built in cross hatch pattern. You can move the line around with the directional circle located at the center of the remote. Using the "3" button, you can decide which color to move. To move the curser to a new location, The number pad doubles as a direction key pad. (2-up), (4-left), (6-right), (8-down). To simplify the process, you can eliminate the red or blue or green lines and only focus on one color at a time. "0" will shut on/off the green line. "100 button" will shut on/off the red line. "CH RTN or Enter will shut on/off the blue line.
"7" will exit the process as well as get you there.
Power off when you are done and turn back on.
Repeat as needed.
you have a shorted green CRT that is affecting the other crts the short is internat to the crt that leaves what is called retrace lines. if the set is more than three years old then replace all three guns.
My guess is that the sound you heard was that of some High Voltage discharges that could have fed back and damaged some semiconductors including the microprocessor itself. Since it could be a very expensive repair, I would be very tempted to look around for a new HDTV by JVC or Toshiba. Hitachi has slipped a notch or two in recent years according to my experience.