[Jukebox-list] Rock-Ola Amp 52280-A (Sound runs wide open)

[Ron Rich]

John,
  Sorry to have to be the one who informs you, but it appears that you are amongst the rest of us, and are also suffering from CRS.  Ron Rich

"John D. Taylor III" <johndt3 at verizon.net> wrote:
  
Opps, sorry guys, but I'm thinking about one thing and talking about
something else. The Rockola amp is off of a 478 jukebox. I am also working
on a Seeburg that is an LS1. No wonder I'm having trouble fixing these
things, I don't know what I'm doing.

John
-----Original Message-----
From: jukebox-list-bounces at lists.netlojix.com
[mailto:jukebox-list-bounces at lists.netlojix.com]On Behalf Of John D.
Taylor III
Sent: Monday, October 01, 2007 8:22 AM
To: Jukebox mailing list
Subject: [Jukebox-list] Rock-Ola Amp 52280-A (Sound runs wide open)



The sound is running at max volume on both channels on this Rock-Ola Amp
52280-A amplifier. When I first pulled the amplifier out of the jukebox it
had a loud hum. I changed all the electrolytic caps, including the ones in
the cans. That cleared up all the buzzing and humming, but it left me with
a loud volume problem. Later, owner told me that that was his original
problem, it was playing loud and they could not turn it down. This new
information tells me that the problem was not any of the changes that I
made. I haven't done a lot of amplifier work, so, I'm not quite sure where
to start,- with the exception of checking the voltages according to the
schematic. The volume controls ome out okay.

Anybody have any thoughts on this? I could use any suggestions.

John

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