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Misprint or error [message #16938]

Fri, 20 April 2012 19:38

reyes61012
Messages: 14
Registered: April 2012
Location: clinton MD

Junior Member

Salvaged a Kustom Amp (K200 maybe) from jumk. brought it home, removed from the piggyback cabinet, the vinyl wrap was a mess, and cleaned the chassis. When I plug the unit, there was a hiss and crackling sound. The volume was very low. I hooked up a microphone, samething - low volume.

I got DC 40V +/-. No 8V +/-; intead I got 25V on the 8V line.

I checked the circuit using PC 703 schematic found in this site. What puzzled me is Q711(FZ952) supposed to be an NPN. What is in the unit checked as PNP using a digital multimeter. Is this a misprint or a production error? Is there any service bulletin regarding this aspect?

I will start to unsolder components to check in depth but I would rather hear from expert techs who are familiar with Kustom Amps. This is the first time I saw this Brand and I am impressed at the layout of the components

Can anybody help? Will apprecdiate deeply any suggestions or tips or guidance.

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[Message index]

		Misprint or error By: reyes61012 on Fri, 20 April 2012 19:38
		Re: Misprint or error By: chicagobill on Fri, 20 April 2012 20:50
		Re: Misprint or error By: reyes61012 on Fri, 20 April 2012 21:51
		Re: Misprint or error By: pleat on Fri, 20 April 2012 22:05
		Re: Misprint or error By: reyes61012 on Fri, 20 April 2012 22:08
		Re: Misprint or error By: reyes61012 on Fri, 20 April 2012 22:27
		Re: Misprint or error By: reyes61012 on Fri, 20 April 2012 22:36
		Re: Misprint or error By: chicagobill on Sat, 21 April 2012 00:07
		Re: Misprint or error By: stevem on Sat, 21 April 2012 07:56
		Re: Misprint or error By: reyes61012 on Tue, 24 April 2012 12:58
		Re: Misprint or error By: chicagobill on Tue, 24 April 2012 11:52
		Re: Misprint or error By: reyes61012 on Tue, 24 April 2012 13:06
		Re: Misprint or error By: cassent5150 on Tue, 24 April 2012 20:36
		Re: Misprint or error By: reyes61012 on Wed, 25 April 2012 00:07
		K200 amps is back in operation. By: reyes61012 on Wed, 09 May 2012 18:19
		Re: Misprint or error By: stevem on Wed, 25 April 2012 06:24
		Re: Misprint or error By: reyes61012 on Wed, 25 April 2012 19:25
		Got the amps all channels working By: reyes61012 on Wed, 09 May 2012 17:05
		Re: Misprint or error By: stevem on Thu, 10 May 2012 06:43
		Re: Misprint or error By: reyes61012 on Thu, 10 May 2012 18:33
		Re: Misprint or error By: cassent5150 on Thu, 10 May 2012 19:03
		Re: Misprint or error By: stevem on Fri, 11 May 2012 06:20
		Re: Misprint or error By: reyes61012 on Fri, 11 May 2012 15:30
		Re: Misprint or error By: stevem on Sat, 12 May 2012 07:33
		Re: Misprint or error By: reyes61012 on Sat, 12 May 2012 21:20

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