Toshiba tv power won't stay on. i turn it on with either the remote or on the tv & it turns on for a few seconds then shuts off. I have tried about 75 times and still no luck. The TV/DVD unit was mfg. in June 2004 sn-47Z61016A
The problem is Q401. Change it. It is a 2SC1624 but a 2SC1018 will also work. This solution will work for other Toshiba P combo units.
I don't like combo units of any size or kind or make. They are all troublesome and they are all difficult to diagnose and they are all very expensive to repair. Please do not buy another one. You are always better off purchasing separate units; you will get better quality AND the total cost will be less for comparable units. The vcr used in combos is inferior and the tv is overheated because of the extra electronics in the box. So, please stay away from then.
Now, to your problem. The reason is shuts off is the protection circuit that is detecting too much current being drawn from somewhere inside the tv. Probably, the trip level of the protection circuit was set too close the limit at the factory and you really should have taken it back while it was in warranty. Now, due to some aging or component failure it is drawing more current and trips the protection every time.
I would judge the repairs to be quite expensive, relative to the cost of the unit. This is because techs don't like to work on them and they are harder to get inside and probe around to do the diagnostics. So, you are probably looking at a repair bill of $100 plus or minus.
Now, here is the really bad news. YOu can buy a pretty good 13 inch set for $49 and up. You can buy a pretty good vcr for $35 and up. So, you can probably get some good merchandise (at least compared to the 13 inch combo you now have) for less than the repair bill.
However, don't take my word for it and call a couple of shops and ask them to give you some estimate or guesstimate over the phone and whether it is worth fixing. It won't cost anything and you might get lucky by finding some shop that is hurting for business and wants to fix it just to make a few dollars on it. But, normal cost would be a couple of hours of labor and parts, so $75 minimum would be my strongest opinion.
So, your decision may be an economic one rather than a technical one at this stage.
(From AllExperts.com for a similar problem with another TV)
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I have the same exact problem with my toshiba tv/dvd combo. It just started today and i have had it for about 3 years now. I have checked for loose cords, and dull batteries and nothing seems to effect the tv shutting off randomly. I dont understand why this is happening. I had another tv for 10 years, though It does make sense that any combo tv would work harder. so specifically lets say I turn the tv on from the remote or on the front of the tv and the first few times it takes a couple seconds and even to a minute and it turns off completely. then the next few tries it turns off in a matter of seconds. by this time I cant keep it on anymore. I rarely ever use it, only for at the most 2 + hours a day.... help! I dont want to have to take it to a repair shop.... I dont know what to do!
el televisor no me enciende
I have have a toshiba md20p1c and the same thing keeps happening, it won't turn on unless i disconnected , but eventually it will turn off again by itself.
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