Question about Yamaha DSPE390 Amplifier
Hi, first it's not power, it's the voltage you need to know, is the transformer burt, if not you can mesure the voltage output by putting a voltmeter at the primery to see if 120vac is there and then the output to see how mutch at each two wire at orange is and then at the two red is. They should be about 24vac on orage and 60 volts at the red.
Not shure what the voltage just guessing, if totaly dead then you have a burt transformer, some of these unit have a internal fuse, you may see them on the top, they may be also thermal shutdown sensor's fuse type, look to see if there is one, if so look at there value, thermal has a degree in C for the value and pico fuse has amp's or ex 4a .
I hope this help
Posted on Feb 08, 2008
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