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check the main fuse box in case a circuit breaker has tripped
If all are ok check the fuse in the power plug
If that is ok check the internal fuse of the tv.
If that is ok and power is getting to the tv you will need to consult a technician to diagnose the fault
Many electronics devices have fuses inside. Also power supply circuit devices can, of course, fail. If you want to open it to look for a fuse, there is usually a warning on the back about that. . . I have seen a set that went out as you describe, opened it, found a bad fuse. Replaced the fuse and the set has worked for years since.
If you feel confident enough to open the device and are aware of the safety issues regarding the large capacitor within the device (which will hold a significant charge even with the mains disconnected) then it is worth checking the internal fuse within the microwave oven itself.
Occasionally a power cut or a brownout will blow the internal fuse before the fuse in the plug or distribution board.
*** DO NOT OPEN THE DEVICE UNLESS YOU ARE CONFIDENT AND SKILLED ENOUGH TO GROUND AND DISCHARGE THE MAIN CAPACITOR IN THE DEVICE AS IT HOLDS A HIGH VOLTAGE CHARGE EVEN IF THE APPLIANCE HAS BEEN POWERED OFF FOR A CONSIDERABLE TIME ***
First you should test to be sure the amps main power feed is supplying 12+ volts to the amp. and that the other connections (head unit remote lead - input & output signal leads) are properly secured, if all is well then there maybe an internal issue with the amp.
It is not recommended to affix an amp directly to a speaker/kicker box, hence the vibration that may cause wire connections and/or internal electronic components to become loose or faulty.
As far as "should i take the amp apart and look at its guts"
NO, sorry but given the way you phrased your question I can assume that your electronic troubleshooting knowledge is not up to par, and that task would be a waste of your time.
Yes, there is an internal fuse. I have a DX5000 as well which woould not turn on so I ripped it apart to check for an internal fuse as all other fuses, cables etc were fine.
I have to say it is a bummer to get to the fuse in the DX5000. You have to take out each and every part of the assembly before you can reach a fuse on the Circuit board attached to the main input.
It is a T1.25 Amp 250V ceramic fuse which I could not get hold of therefore decided to ditch the printer.
I would say it is not worth the effort, just get a new printer. Look out for deals... I got the Epson Stylus SX200 on a half price deal for just £39.99. Its better and faster then the DX2000 and this time I checked the power input. It is easy to open and access the main input circuit from the back in this one.
NOTE: If you do happen to go for ripping the thing apart then please do not touch the power circuit board with you hands even if the printer is totally disconnected as it has a capacitor on it which will discharge and give you a little shock if you happen to touch it. Good luck.
Take off back cover. The problem power board is to the right of the
board where the power plug feeds into the TV. There is a large white
fuse right bend the power plug. With a meter it read ok; about 8 inches
deeper into the TV on that board was the resister next to two fuses. My
4 amp 125 volt fuse did not read on my meter. After replacing, it
worked fine. Check all three fuses while you're in there.