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Leaky or blown capacitors, probably in the power supply board.
If your not competent get someone who is as there are high voltages inside even when the tv is off or not working
Try going into the picture settings in the options. Many Toshiba TVs have the option to move the picture up, down, left, and right. See if you are able to position the TV to the left more.
Also, see if there is a reset button in the options. A setting may have been switched that caused this.
Bad solder connections on an older TV is common. Check all your solder grounds on anything mounted on heatsinks. The other thing is bad capacitors. Always suspect the 160 volt to 250 volt at 1 MF, 2.2Mf or 4.7Mf for being bad. This is true for many repairs for any brand of TV.
There are several different options to solve your problem. You should be able to program your cable box remote to replace many (but probably not all) of the functions of the Toshiba TV remote that you're missing. Read the user manual that came with your cable box remote to find out how to program it to control different types of components. It's not very difficult and that would be your least expensive option. Another suggestion is to buy a "universal replacement remote" that are sold in many electronics stores. Once you program those universal remotes, they will perform most/many of the functions of the original (Toshiba) manufacturer's remote. A "universal replacement remote" can cost anywhere from $20 to well over $100 depending on how many electronic components you want to control. My best suggestion would be to buy a replacement remote that was specifically made for your Toshiba model 27DF46 TV. There are many companies on the Internet which sell those remotes specifically made for your TV. The cost is usually between $25 - $35. One last inexpensive option would be if you already have any other Toshiba components (like a Toshiba DVD player), in many cases, the remotes are nearly identical and will provide most or all of the same functions. I would start by trying whichever option makes the most sense for your particular situation. Good luck.
Hello Hloggins, hi, your power supply is not producing the pulse needed to start the switching. check for the IC on the oscillator part of the power supply, you need an Oscilloscope to test this. if there is no scope. i suggest you replace the IC.
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