Hitachi 60EX38B shuts down after 30 min or 45 min of viewing.

The main power supply regulator section circuit has the fault. It shuts down, after some time. It will be best to contact any service technician.

TV needs servicing.

It sounds that the power supply regulator section shuts down intermittently. There are so many reasons for this fault. Seek tech support.

Try unplugging and waiting about 2 min. Then retry. There is a self protection circuit which is what is stopping the unit from coming on, but it can be triggered by many things. [Units this old are famous for the capacitors (electrolyte dries out and then they blow), but that is just the most common problem. I would look the capacitors over and see if they give any indication of being "blown" (discoloring, etc.) and replace them if they do.

it sounds like the afc the fan control not working could be dust on the afc

There are a few things you need to check here.
1. It could be that your computer power management is set to turn your monitor and harddrive off after 30 to 45 min.

If the computer is however working for 30 to 45 min while you doing stuff and it shuts off, the there is an internal problem "Hardware"

I would suggest you check to see if the power management is set to turn off monitor 30 min and harddrive after 45 min. IF that is not so, then we go on to the next test.

It could possibly be your processor fan is not working so once your processor gets over heated it shuts off the computer.

Turn off the computer, remove the case "this is only if you know what you are doing" with the case off, power on the computer and see if the processor fan is working.

You can get back to me and I can walk you through it.

Hope thiss help.

bad stk392-180 convergence amp

Hi, Please understand that this type of troubleshooting is hard without seeing it but doesn't sound like a fuel issue at all. This genset does have other sensors that will shut it down like low oil and high temperature. Most likely oil from your description. You also don't say what load it is carrying, could you be plugged into something that cycles off and on and when it cycles on the genset shuts down from the overload? If you think this might be the case, disconnect everything and power up a few at a time especially things that cycle on and off like refrigerators, heaters, stoves. Good Luck!

All you need to do is remove the back cover, then remove the metal cover that covered the power supply. Watch tv w/o cover, it won't shut down again. Try it and post here if it works.