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Re: K200A has hum/low output [message #9826 is a reply to message #9820]

Fri, 31 October 2008 22:14

ellum68
Messages: 71
Registered: November 2007
Location: Sioux City, IA

Member

So, I decided to randomly probe around and MAY have found my problem. I set my meter for diode test and began inspecting the small black transistors on the little preamp driver board on the far left. Apparently this meter will give a "beep" tone if a diode is shorted out. I have one 2N3638 transistor that I can get to beep when I test it. I tried getting the other ones next to it to do it, but could get. I measure a few k resistance on all my other tests, but the bad combination gives me only 3 ohm of resistance. Think this shorted out and is causing a 25 volt reading instead of an 8 volt?

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[Message index]

		K200A has hum/low output By: ellum68 on Thu, 30 October 2008 21:00
		Re: K200A has hum/low output By: stevem on Fri, 31 October 2008 08:00
		Re: K200A has hum/low output By: ellum68 on Fri, 31 October 2008 11:33
		Re: K200A has hum/low output By: chicagobill on Fri, 31 October 2008 12:12
		Re: K200A has hum/low output By: ellum68 on Fri, 31 October 2008 19:53
		Re: K200A has hum/low output By: stevem on Fri, 31 October 2008 12:11
		Re: K200A has hum/low output By: ellum68 on Fri, 31 October 2008 22:14
		Re: K200A has hum/low output By: chicagobill on Sat, 01 November 2008 12:23
		Re: K200A has hum/low output By: ellum68 on Sat, 01 November 2008 17:58
		Re: K200A has hum/low output By: ellum68 on Sat, 01 November 2008 18:25
		Re: K200A has hum/low output By: stevem on Mon, 03 November 2008 06:26

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