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Re: K200B-6 [message #27506 is a reply to message #27505]

Tue, 17 September 2019 06:06

stevem
Messages: 4756
Registered: June 2004
Location: NY

Senior Member

Hello!
The number 1 main reason for the loud pop instead of the normal thump that the amp should make is due to the two big can type 4500 / 50 volt power supply rail filters needing to be replaced..
A secondary reason could be the many smaller electrolytic type caps on the other circuit boards that the amp has.

To nail down where the issue is coming from you can do this check out.

The blue wires from each front mounted PC board carry the audio signal to the amps rear wall mounted PC703 board.

If you cut open each blue wire one at a time and then power on the amp again to can then confirm if it's either of these two boards that are making the loud pop .

These wires can the easily be soldered back together and insulated.

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[Message index]

		K200B-6 By: aeroboy47 on Mon, 16 September 2019 11:08
		Re: K200B-6 By: stevem on Tue, 17 September 2019 06:06
		Re: K200B-6 By: aeroboy47 on Tue, 17 September 2019 16:40
		Re: K200B-6 By: stevem on Wed, 18 September 2019 06:37
		Re: K200B-6 By: aeroboy47 on Wed, 18 September 2019 11:16
		Re: K200B-6 By: stevem on Wed, 18 September 2019 12:01
		Re: K200B-6 By: aeroboy47 on Thu, 19 September 2019 13:25
		Re: K200B-6 By: rodak on Thu, 26 September 2019 16:08
		Re: K200B-6 By: stevem on Fri, 27 September 2019 05:43
		Re: K200B-6 By: rodak on Mon, 10 February 2020 15:49
		Re: K200B-6 By: stevem on Tue, 11 February 2020 08:58
		Re: K200B-6 By: rodak on Tue, 11 February 2020 10:36
		Re: K200B-6 By: stevem on Wed, 12 February 2020 05:54

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