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Just got done with some final programming adjustments and the CO line conditioning on my recent NEC SL1100 install. I've also been having trouble getting the ring over page feature to work too. A restart of the system was supposed to help everything.
After the restart, the overhead page horns had a low level hum. This turned out to be a poor connection from the page output. Next, I tried the ring over page. Nothing. Tried a regular page and, nothing.
Listened to the page out from the system and that was good. But the Bogen TPU-35A amp had a loud buzz on it's output.
So, I think the amp is junk. Its probably 30 years old. But why did it have to die on the afternoon that I was near it?
Jim
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I know you've heard of that famous telephone man Mr. Murphy.
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O yeah! 
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It's the telephonic equivalent of "Never change the oil" in the antique car hobby.
Arthur P. Bloom
"30 years of faithful service...15 years on hold"
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Joined: May 2003
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You obviously looked at the amp wrong, maybe gave it the Evil Eye??? And being old and grumpy, it just rolled over and died.
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Moderator-ESI, Shoretel
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Moderator-ESI, Shoretel
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This goes along with the other post about old stuff.
But think about it ...... it makes sense that this old stuff is more likely tol fail when it is changed, rebooted, moved etc.
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This business is cursed by the "When you scratch your elbow, your hand will fall off."
With today's equipment with so many interconnections to everything else, an older piece will invariably fail. But you were extremely fortunate. These things usually wait until you are 150 miles from the place to fail and cause you to turn around to fix it.
Rcaman
Americom, Inc.
Where The Art And Science Of Communications Meet
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Tricky part is making the customer understand that it is coincidence. And not something you did. ("but it worked before you were here").
Jim
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Are you sure it's the amp? Did you disconnect all inputs and still hear the hum with just the speakers connected? Very possible with old amps for the power supply filter caps to fail but that usually doesn't happen suddenly.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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Got the replacement amp today and swapped it out. All is good now. Thanks for the support.
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