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Re: keeps switching itsself off
Check the lamp first. Observe the light where the lamp door is on the back of the set. If the light is going out, its likely the lamp, especially if its 2 or more years old. If the lamp has been recently repalced, make sure the lamp door is properly aligned so the interlock switch is engaged.
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probably not worth it. How many times does the LED flash? That will indicate your failure cause. Problem is this is an old tv and parts are not available or cost effective. Unless its bad capacitors or bad solder you could be looking at rediculous amounts to fix it. Mitsubishi WS 65413 Manuals Support and Troubleshooting TVs
here is a link to the manual. please provide the amount of LED blinks. itll blink a few times and pause.
There should be a screw adjustment under the PIR unit. Clockwise direction increases the amount of time it stays on and anticlockwise decreases the amount of time it stays on. It's usually a small hole which you can see a slot in which you turn with a screwdriver.
did u check the remote? i mean remove the batteries of the remote and remove the tv from electricity and put it back on the tv but not the remote batteries and check if it works normal and if it does buy a new remote.
Sounds like your tact switches on the front of the TV are shorting out. Unplug the plug for the switches. if the problem goes away then try to clean the switches with rubbing alcohol, if still has problem replace switches.
Mute the volume and listen at the rear of the unit. You should be able to hear a fan running since these have hot-spots that require some kind of air movment to keep them from overheating.
There are protective circuits that will shut down the power supply once a critical temperature is reached.
The second possibility is the power supply itself; these sophisticated units are very energy efficient but have components in them that age and lose their function over time.
The main supply should be fairly easy to spot; it will have larger components on it, some cylindrical (capacitors), others block-like.
If the fan is running and it is still shutting down, this supply may need repair or replacement.
Look for a part number on the board and inquire at the manufacturer's service center about those possibilities.
Have your model & serial numbers of the set available too.
Out of 30 years in the repair field, I have seen this problem maybe 4 times. Once was a stuck button on the keypad of the tv. The other time was a second remote control with a book sitting on it and it would turn the tv on and off when someone would move something on the coffee table, another time was a bad solder connections on the microprocessor on the keypad circuit board and the last time was from a humorous neighbor in an apartment complex who thought he was funny who had an all in one remote control programmed for his neighbor's tv set.
if the remote eye on the tv it will do all kinds of strange stuff once the eye on tv gets dirty the the tv will shut off after 2 seconds try cleaning it and see what happens the eye on tv is hard toget to so get a can of air to blow it out i took my pocket knife to clean mine i know that was ruff on eye but thats all i had if this dont work try unpluging your control board on front of set board may be bad or buttons are stuck email me at firstname.lastname@example.org if this helps
well it sounds like a leaky capacitor in the power supply. Where?, is the question. There are alot of caps and it could be in many different places. Probably gonna need a pro to help find. Probably worth repair though under $200 i bet.