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Re: WD-65734 shuts down code 38
The sensor is usually right by the lamp, somewhere by the housing. There were a few bad batches of temp sensors and some others where the temp sensor connector went bad (hardwiring fixed those) . it usually has yellow wires and should be a short (0 ohms) if good, open (infinite ohms) if bad
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No a bulb would not cause this, you have serious PCB issues, like a shorted cap capacitor(s). Before you start spending money that may or not fix the set take a look at current flat screen prices, a Vizio 46" 4K for less than $400.
It sounds like you have a bad ballast board, or possibly the power supply going to the ballast bulb. I'm afraid that if you do not have the repair experience on solid state TV sets, you will need to contact and authorized Mitsubishi repair center. Good Luck
Never heard of a color wheel needing to be replaced. Both cooling fans need to be clean and turn easily. Color wheel fan needs to turn easily. If any one of these motors does not turn, the controller will cause a shut-down. The Xenon lamp uses high voltage to operate. If the power supply was damaged, the lamp won't light. The sparking on the ballast board indicates that dirt or dust may be causing the problem. Also, the clamping diodes and regulator may be defective. If possible, try replacing the lamp power board. Regards.
yellow steady light is overheating. you have a stuck fan or its all clogged with dust. The only way to fix it is to find what is causing it to overheat or prevent the fan from spinning. It is not lamp related unless you bought a lamp that does not have an Osram bulb inside.
U May have a circuit board problem, I had a RCA.. A large tv also and it would come on and shut off whenever.. The circuit board that was out, Was kind of pricey to fix,, U may Get a diagnostic first......then I suggest weighing your options on if its worth fixing.....
Same thing on my tv after replacing lamp. Lamp manufacturer advised me that after changing bulb, tv must be reset or tv will go into safety mode and will not turn on. To do this on my model WD-65734 you must hold reset button in with a pen or paperclip for about 10 secs.The LED will start blinking for a few mins. When itstops you need to unplug tv set for about 1 hour. After this the tv will be reset.