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Re: Repair advise [message #19131 is a reply to message #19128]

Tue, 13 August 2013 17:16

chicagobill
Messages: 2005
Registered: April 2003

Senior Member

Okay, it's time to test the preamp board. Do you have an old RCA cable around? Something from an old stereo or video unit would work. If not a regular jumper wire will do. Either plug in the RCA cable into the jack on the back of the amp, the monitor jack or hook a jumper wire to the back of the jack. This is a direct line into the power amp.

Connect the other end of the cable to the output wire of the preamp. If you disconnect the output wire from the rest of the amp circuit you can disregard the fx units for now. If the rest of the circuits are still connected, then turn down all of the fx controls and turn on the fx.

If the preamp is working, you should hear the signal through the speaker. If not, then we will start testing parts on the preamp board.

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[Message index]

		Repair advise By: Jonomega3 on Fri, 09 August 2013 15:44
		Re: Repair advise By: chicagobill on Fri, 09 August 2013 16:28
		Re: Repair advise By: Jonomega3 on Fri, 09 August 2013 19:56
		Re: Repair advise By: chicagobill on Fri, 09 August 2013 21:36
		Re: Repair advise By: Jonomega3 on Sat, 10 August 2013 07:52
		Re: Repair advise By: pleat on Sat, 10 August 2013 08:15
		Re: Repair advise By: Jonomega3 on Sat, 10 August 2013 08:31
		Re: Repair advise By: Jonomega3 on Sat, 10 August 2013 18:09
		Re: Repair advise By: Jonomega3 on Sat, 10 August 2013 23:30
		Re: Repair advise By: Jonomega3 on Sat, 10 August 2013 14:50
		Re: Repair advise By: chicagobill on Sat, 10 August 2013 12:55
		Re: Repair advise By: chicagobill on Sun, 11 August 2013 14:34
		Re: Repair advise By: Jonomega3 on Sun, 11 August 2013 14:46
		Re: Repair advise By: Jonomega3 on Sun, 11 August 2013 16:17
		Re: Repair advise By: chicagobill on Sun, 11 August 2013 22:20
		Re: Repair advise By: Jonomega3 on Sun, 11 August 2013 22:41
		Re: Repair advise By: chicagobill on Sun, 11 August 2013 22:53
		Re: Repair advise By: Jonomega3 on Mon, 12 August 2013 12:19
		Re: Repair advise By: chicagobill on Mon, 12 August 2013 12:57
		Re: Repair advise By: Jonomega3 on Mon, 12 August 2013 22:43
		Re: Repair advise By: chicagobill on Tue, 13 August 2013 00:26
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 10:34
		Re: Repair advise By: chicagobill on Tue, 13 August 2013 11:35
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 12:06
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 13:33
		Re: Repair advise By: chicagobill on Tue, 13 August 2013 13:38
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 13:48
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 15:03
		Re: Repair advise By: chicagobill on Tue, 13 August 2013 15:08
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 15:23
		Re: Repair advise By: chicagobill on Tue, 13 August 2013 16:16
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 16:37
		Re: Repair advise By: chicagobill on Tue, 13 August 2013 17:16
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 17:37
		Re: Repair advise By: chicagobill on Tue, 13 August 2013 18:16
		Re: Repair advise By: pleat on Tue, 13 August 2013 21:18
		Re: Repair advise By: Jonomega3 on Tue, 13 August 2013 21:52
		Re: Repair advise By: pleat on Wed, 14 August 2013 07:23
		Re: Repair advise By: Jonomega3 on Wed, 14 August 2013 09:07
		Re: Repair advise By: chicagobill on Wed, 14 August 2013 12:33
		Re: Repair advise By: Jonomega3 on Thu, 15 August 2013 08:59
		Re: Repair advise By: chicagobill on Thu, 15 August 2013 13:26
		Re: Repair advise By: Jonomega3 on Thu, 15 August 2013 13:41
		Re: Repair advise By: chicagobill on Thu, 15 August 2013 15:17
		Re: Repair advise By: Jonomega3 on Thu, 15 August 2013 15:40
		Re: Repair advise By: chicagobill on Thu, 15 August 2013 16:15
		Re: Repair advise By: Jonomega3 on Thu, 15 August 2013 16:29
		Re: Repair advise By: chicagobill on Fri, 16 August 2013 12:16
		Re: Repair advise By: Jonomega3 on Fri, 16 August 2013 13:12
		Re: Repair advise By: chicagobill on Fri, 16 August 2013 13:36
		Re: Repair advise By: Jonomega3 on Fri, 16 August 2013 13:39
		Re: Repair advise By: chicagobill on Fri, 16 August 2013 14:55
		Re: Repair advise By: Jonomega3 on Fri, 16 August 2013 15:27
		Re: Repair advise By: chicagobill on Fri, 16 August 2013 15:52
		Re: Repair advise By: Jonomega3 on Fri, 16 August 2013 16:00
		Re: Repair advise By: chicagobill on Fri, 16 August 2013 16:41
		Re: Repair advise By: Jonomega3 on Fri, 16 August 2013 20:44

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