Turn it on works fine about 15 minutes color starts to get darker and darker- then is good again then gets darker again eventually screen goes entirely blank-no picture at all- turn off for a while and turn it on and the same process starts all over again..what do you think are possibilities?
SOURCE: black screen in middle of picture
go tothe menu, caption, take it off the text mode. this should solve your problem
SOURCE: No picture, only sound
The set has a shorted vertical output IC, probably a TA8427k. The capacitors around the heat sink of this IC dry out and cause the IC to run hot. The correct repair is to replace the vertical output and the electrolytic capacitors near it. Also use 105 centig instead of the original 85 centigrade. The is some time a pico fuse or current limittng resistor which must also be replaced. This a common problem with Toshiba and is not a bad picture tube. The usual cost of this repair is around $120-150 depending on the integrity of the technician. Scrivitron
SOURCE: Color line across the center of a black screen
Hi. this is caused by dry solder joints on the frame o/p IC. Resolder all legs of frame chip. Should sort that out.
SOURCE: toshiba 32a33 32"tv
My dad and I fixed the TV/Video problem over the weekend using one of the solutions suggested. Make sure you stay away from the red wire running from the back of the tube to the circuit board.
1. Take the cover off the back of the TV.
2. On the bottom of the TV is a circuit board that is mounted on top of a plastic tray. Remove the cables running from the speakers by squeezing the tab on the white plug and pulling them up and off the board.
3. Looking at the back of the TV, pull the board+tray out (barely secured in there) and flip it 180 degrees so you're looking at the front of the board.
4. Desolder and remove the TV/Video push button. It's labeled on the PCB, and should be the second button in from the left.
5. Place the tray back in the TV and make sure the other buttons still remaining on the baord are aligned with the buttons on the front of the TV.
6. Put the cover back and you're done.
TV works as good as new again. Of course I can't use the TV/Video button on the TV itself, but the remote handles that fine. 20 minutes max, and no repairman needed.
SOURCE: Toshiba 32A40 32" TV Problem
does any one can send me the schematic of TOSHIBA 32A40? I have a vertical problem and I need to locate the vertical IC or trancistor.
I only see a horizontal line on my Tv.
thanks.
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It is Model # CF32H50
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