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CT810 has Hum


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#1 FtJackson

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Posted 12 August 2005 - 01:15 PM

I have a CT810 that hums.  sad.gif  
You can hear the amp hum with no inputs or outputs.
It does transfer the hum to the outputs if it's hooked up.

I checked for anything loose inside and found nothing.

Could this be the main transformer?

What else might I check?

Is there a Troubleshooting Chart for this amp?

#2 Bradford Benn

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Posted 12 August 2005 - 02:39 PM

You may want to see if the problem occurs on another outlet, perhaps you have a bad ground on the outlet you are using.
-=Brad

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Business Development Manager - Crown International
http://www.crownaudio.com/

#3 FtJackson

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Posted 15 August 2005 - 12:04 PM

The outlet is good.

#4 FtJackson

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Posted 17 August 2005 - 10:57 AM

Resolved by swapping the main transformer from a fried amp.

#5 DGlass

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Posted 17 August 2005 - 11:19 AM

QUOTE(FtJackson @ Aug 17 2005, 10:57 AM)
Resolved by swapping the main transformer from a fried amp.
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It sounds like a winding in the transformer became delaminated and the noise was from the mechanical vibration

#6 FtJackson

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Posted 18 August 2005 - 09:05 AM

QUOTE(DGlass @ Aug 17 2005, 12:19 PM)
QUOTE(FtJackson @ Aug 17 2005, 10:57 AM)
Resolved by swapping the main transformer from a fried amp.
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It sounds like a winding in the transformer became delaminated and the noise was from the mechanical vibration
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Can this be fixed or is is lost.

#7 DGlass

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Posted 18 August 2005 - 10:12 AM

QUOTE(FtJackson @ Aug 18 2005, 09:05 AM)
QUOTE(DGlass @ Aug 17 2005, 12:19 PM)
QUOTE(FtJackson @ Aug 17 2005, 10:57 AM)
Resolved by swapping the main transformer from a fried amp.
View Post

It sounds like a winding in the transformer became delaminated and the noise was from the mechanical vibration
View Post



Can this be fixed or is is lost.
View Post

Sorry, there's no easy way to rewind a transformer and fix it. They are cheaper to replace.