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Re: Power shutting off during use
If you have some knowledge in electronics, concentration and patience, you can do it by yourself. The power board can be bought from the authorized service center for Sony. Never use a different power supply board, than specified. Replace it with a genuine one. http://google.com/+GopakumarGopalan
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Switch mode power supplies are sensitive to power levels. At this point there is a problem in the power supply. Most likely a number of capacitors have become defective. Without seeing the set and taking measurements inside, it will be difficult to determine the exact fault. I would suggest that you get a detailed repair estimate from a local repair shop. Post the results here and we should be able to guide you through the actual repair.
If a power supply is what you want, they are available all over the world, just use the internet like you did tonight and use Google, type in your tv make and model and power supply and you will find them. Parts are really hard to come by now the Quake in Japan has shut down many suppliers. I am in America and we can;t get these here, but you should be able to find them online where you loive.Or simply contact Hitachi for the replacement. The reason the set is shutting down is just as you described it, it senses an over current and shuts down before burning up. The place you bought the set might be your best place to look, or the technician who looked at it should be able to get these parts.
During when does your computer shutdown? Please check the diagnostic lights at the back as well which ones have light on it during the time it would shutdown.
Since you said that the light is blinking yellow it just says that your power supply is running outside its normal operating range. So most likely you would need a change of power supply. Maybe a higher wattage would be better.
This certainly sounds like an overheating element. The problem is that the element is working. Something is allowing the element to get too hot. Then your over-limit switch is sensing the fire hazard and shutting down the system. Safety in action.
I suspect your blower fan is not running. This fan keeps the heating element from over heating by blowing the heat to the clothes in the drum. This is easily checked. The very next time you attempt to dry a load, start it and go to the exhaust vent outside. Put your hand close to it. See if it is blowing air or not. No air blowing = shut down in 10 minutes.
The blower motor should not be too hard to replace. Surely easier than the element itself. Before you pull the motor, use a multimeter to confirm that power is getting to the motor first. Power yes, motor running no, replace it.
Could also be something simple, like a wire broken or pulled off of the motor. That is why you check first. Good luck
An educated guess; this is the reaction of heat sensing elements in the main power supply or a component that has become heat sensitive.
If you can arrange it, park a portable fan to the side of the set, turn it on and see if it makes any difference in the set's behavior.
If it does, the diagnosis is likely correct.
The supply may not be directly at fault but if present, the temperature sensing has gone bananas.
The supply may or may not be an item repairable with Samsung.
If you are forced to purchase a new one, don't pitch the original since there are small companies that do repair these for something less than the replacment cost.
If you send it in to anyone, make sure you describe the conditions it was causing. This is important then power supplies will often operate without revealing the problem unless appropriate loads are applied to it to recreate operating conditions.
I know this after having repaired literally thousands of various power supplies.
Hi there. If its the CPU (processor fan) thats not working, it could well be the machine overheating and shutting down to prevent further damage to the machine, try another fan, if it spins up the CPU fan has gone and will need to be replaced. If you have a working fan but it doesn't work on the motherboard, check the power supply unit as that could be faulty.
Most likely the convergence output IC has shorted out and has overloaded the convergence power supply, which has stopped working. The computer senses that the convergence power supply is not running and shuts the set down. The convergence IC should be replaced, the power supply restored and the convergence circuits realigned by someone experienced in Mitsubishi projection sets. When I do a housecall for a set like that I charge $150, but shops in your area will vary so ask around.