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Re: 200B 5 PA head hum/hiss issue [message #28150 is a reply to message #28094]

Fri, 26 March 2021 21:46

stevem
Messages: 4756
Registered: June 2004
Location: NY

Senior Member

Your high current power amp section is not working , or either not being driven with enough drive signal TO work !
Set your audio generator up to output 1 volt if you can an and send that into the RCA jack on the rear of the amp, does your output to your resistive load go up way
Higher then what you tested it at?

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[Message index]

		200B 5 PA head hum/hiss issue By: Drjones1106 on Tue, 09 March 2021 22:47
		Re: 200B 5 PA head hum/hiss issue By: stevem on Thu, 11 March 2021 07:11
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Thu, 11 March 2021 09:51
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Thu, 11 March 2021 20:30
		Re: 200B 5 PA head hum/hiss issue By: chicagobill on Thu, 11 March 2021 12:06
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Thu, 11 March 2021 13:21
		Re: 200B 5 PA head hum/hiss issue By: chicagobill on Fri, 12 March 2021 00:38
		Re: 200B 5 PA head hum/hiss issue By: stevem on Fri, 12 March 2021 07:23
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Fri, 12 March 2021 12:40
		Re: 200B 5 PA head hum/hiss issue By: stevem on Fri, 12 March 2021 14:04
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Fri, 12 March 2021 14:59
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Mon, 15 March 2021 18:02
		Re: 200B 5 PA head hum/hiss issue By: stevem on Wed, 17 March 2021 06:04
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Sun, 21 March 2021 18:09
		Re: 200B 5 PA head hum/hiss issue By: stevem on Mon, 22 March 2021 07:00
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Mon, 22 March 2021 14:55
		Re: 200B 5 PA head hum/hiss issue By: stevem on Mon, 22 March 2021 17:16
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Mon, 22 March 2021 17:30
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Thu, 25 March 2021 16:50
		Re: 200B 5 PA head hum/hiss issue By: stevem on Fri, 26 March 2021 06:12
		Re: 200B 5 PA head hum/hiss issue By: stevem on Fri, 26 March 2021 16:45
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Fri, 26 March 2021 19:01
		Re: 200B 5 PA head hum/hiss issue By: stevem on Fri, 26 March 2021 21:46
		Re: 200B 5 PA head hum/hiss issue By: stevem on Sat, 27 March 2021 07:40
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Sat, 27 March 2021 14:36
		Re: 200B 5 PA head hum/hiss issue By: stevem on Sat, 27 March 2021 15:50
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Sat, 27 March 2021 22:09
		Re: 200B 5 PA head hum/hiss issue By: stevem on Sun, 28 March 2021 08:11
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Wed, 07 April 2021 18:48
		Re: 200B 5 PA head hum/hiss issue By: stevem on Thu, 08 April 2021 05:54
		Re: 200B 5 PA head hum/hiss issue By: Drjones1106 on Fri, 09 April 2021 20:54

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