I accidentally plugged my RCA STA 3900 Receiver Amplifier in a 240 volt socket instead of 110 volt outlet. There was a pop sound and it seems the transformer at the back near the fuse shortcircuited as there is black soot trace on one terminal. Is this transformer replaceable? What is the power rating of this transformer?

SOURCE: mitsubishi mgb 4000 wiring diagram

Here is a manual for a newer mge model. I don't think your going to find a manual on the older mgb around and they tend to be very similar from one model to another so it should help. Though you should be able to get parts.

http://www.mitsubishi-generators.com/pdf/540811+NM%20Products+MGE1801-2901-4000-4800-5800-6700.pdf

As for the gfci brand, I have not had any problems with any of the brands out there. So the cheapest is the best. The 30amp socket could be 110 or 220vac. If there is a selector switch on your machine. If not, there should be a NEMA number on the face of the socket (ie 15-5R). The R stands for receptical while a P stands for plug.

Here is a plug configuratio diagram that will help identify your plug and the voltage it puts out. These are standard so you can be sure that if it the same plug it will put out the same power. Be carefull to ensure which side is larger or has a tab is correct.

http://www.frentzandsons.com/Hardware%20References/plugandreceptacleconfiguratio.htm

While replacing the plug just swap wire for wire in the same place as your new plug. Gold connector to gold and silver to silver.

The inside of a small generator is very similar and if this don't help I can walk you through any connections you have questions on. Pictures would help if it comes to this.

Steve Allison

• 5569 Answers
• Posted on Aug 23, 2009

SOURCE: plugged a 110 volt kenwood receiver accidentally to 220 volts

Considering 220 and 110 systems have different receptacles, you worked at doing this.
Since it is already inoperable, you may as well remove the housing and inspect the guts. If you see burned traces or boards, don't bother to have it repaired.
If you see a fuse in a clip, you might replace it once, two would be the waste of the second fuse.

SOURCE: I have an RCA STA 3900 receiver. I have 4

through what input do you have the mixer and keyboard? if you are getting results say seeing your measurements....you should get sound. let me know what input you are using.seems like.........hard to figure without seeing. let me know your connections should be able to help!

Testimonial: "Leading me in the right direction"

SOURCE: RCA STA-3900 standby light on will not turn on

POWER SUPPLY BLOWN FUSE CAUSED FOR A BLOWN OUTPUT TRANSISTOR , DO YOU HAVE THE NUMBER OF THOSE TRANSISTORS??

SOURCE: wrong outlet

You've overloaded an internal fuse, or blown the heating element but it's not usually repairable. George would far prefer you to buy a whole new machine so that's how it's been designed, but you can thwart his money-grabbing plans by asking for one on your local FreeCycle or Freegle group.

There are millions of them sitting unused in the back of people's cabinets and although they might need a clean, the price is right. I've never had to pay for a George Foreman grilling machine.