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Home » VintageKustom.com » Repairing Kustom Amps » Schematics for K250 tuck and roll bass amp (schematic for k250)
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icon3.gif  Schematics for K250 tuck and roll bass amp [message #12972] Mon, 15 February 2010 00:49 Go to next message
Jelloman774 is currently offline  Jelloman774
Messages: 4
Registered: December 2009
Location: PA
Junior Member
I have a black (maybe a ground?) wire that looks like it has been cut for one reason or another. This wire runs along side a green wire that goes to the polarity switch. I traced the black wire and I think it goes to a fuse at the back of the amp where the BIG BLACK BOX (not sure what it's called) is located. Where does this black wire belong and why on earth would someone cut it? Any help would be greatly appreciated.

Jello Surprised

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Re: Schematics for K250 tuck and roll bass amp [message #12975 is a reply to message #12972] Mon, 15 February 2010 06:31 Go to previous messageGo to next message
stevem is currently offline  stevem
Messages: 4772
Registered: June 2004
Location: NY
Senior Member
If you amp now has a three prong AC cord that that wire more than likly went to the grounding cap which is no longer needed with the three prong cord.

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Re: Schematics for K250 tuck and roll bass amp [message #12976 is a reply to message #12975] Mon, 15 February 2010 07:37 Go to previous messageGo to next message
Jelloman774 is currently offline  Jelloman774
Messages: 4
Registered: December 2009
Location: PA
Junior Member
It does have a 3 prong plug. Thanks for the info.

there is a hiss to the amp that is present even when all the volume/tone knobs are turned down all the way. is that normal or do I have another visit to the repair shop in my future?

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Re: Schematics for K250 tuck and roll bass amp [message #12977 is a reply to message #12972] Mon, 15 February 2010 07:42 Go to previous message
stevem is currently offline  stevem
Messages: 4772
Registered: June 2004
Location: NY
Senior Member
Thats a normal trait of all Kustom amps!

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