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Stupid question about hum in the PAS

68.36.41.59
Posted on May 21, 2003 at 18:21:30
airtime
Audiophile

Posts: 11342
Location: Arizona
Joined: February 4, 2003
 Joe, you recommended I jump terminals 1 /2 and 1/9. I am using your linestage board and do I just place the jumpers across the terminals with the wires still connected or disconnected them? if disconnected can i leave the wires on terminal 1 and just remove terminals 2 and 9
charles

 

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Re: Stupid question about hum in the PAS, posted on May 22, 2003 at 07:56:52
j


 
Normally you could just place a jumper across the respective inputs however with the original wires in place this test will not disclose a ground loop hum. Therefore if your hum is partially the result of a ground loop then this test will not reveal that as a source.

Therefore I'd recommend that you remove the wires from those inputs and replace them with a jumper to properly conduct the test.

 

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