| Kustom 250 not powering on [message #17287] |
Sun, 15 July 2012 10:42  |
Chewy
Messages: 1
Registered: July 2012
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Junior Member |
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Howdy,
My wife and I just moved into a new house about 8 months ago and yesterday I finally got the home studio into decent enough shape to plug a few things in. I was disappointed to find out that my Kustom 250 amp is not powering on.
I play keys and have used the 250 in the past as a live amp with my Wurli and Moog. The amp has not seen a lot of ON time in the past 3 years but it was working just fine prior to the move.
What steps should I start with to trouble shoot the amp.
I am hardly an amp tech nor do i have the time, but I thought if it is something simple like a fuse then perhaps there is hope.
If anybody can recommend a honest and good amp repair tech in the Los Angeles area that would be appreciated as well.
Thx,
Chew
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| Re: Kustom 250 not powering on [message #17288 is a reply to message #17287] |
Sun, 15 July 2012 14:15  |
chicagobill
Messages: 2005
Registered: April 2003
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Senior Member |
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Hey Chewy, welcome to the board.
If you have an ohm meter, you can test the primary wiring that will at least tell you why it isn't powering up.
Take the ohm meter and set it to read low ohms. Touch each of the two leads to the two prongs of the power cable. It should read infinity. Now turn on the power switch, you should get a very low reading on the meter. Maybe less than twenty ohms. If you do get the low reading, then you know that the ac cord is ok, the power switch is ok, the fuse is ok, the heat sensor is ok and that the power transformer's primary winding is ok.
If you don't get a reading and the meter continues to read infinity, then you will need to check each of the above mentioned items.
I always start with checking the fuse. To do this you will need to remove the chassis from the cabinet. Kustom fuses are soldered in place and are located on the chassis. Use the ohm meter to read across the two sides of the fuse. It should read nearly zero ohms. If it does then check the power switch, the heat sensor and finally the power cord itself. It could be as simple as a bad plug on the ac cord.
Let us know what you find out.
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