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Challenger part [message #14866]

Sun, 12 December 2010 18:02

cassent5150 is currently offline

cassent5150
Messages: 341
Registered: August 2009

Senior Member

I see a lot of comments on locating these ICs. Did anyone find them or figure a solution or substitute. I'm working on one at the moment and so far I believe I have isolated it to that point. I have signal at pin #2 on I3 "SE540L" (non inverted input but has a little tremolo effect in it) and the output transistors are testing good. I checked them out of the amp and reinstalled them. I'm just not getting any signal output from this SE540L. I see one instance where a C540H was used, is that correct? How about the availability of that one. If I'm not mistaken it was chicagobill that got that guy headed in the right direction in that area. This unit still has those white diodes with the red band on, how important is changing them out with either the 1N4007 or 1N4005. Also I have a note on the schematic to add one of these diodes from pins 8 to 9, any idea what direction that would be or maybe the nessesity of this? Anyone have any thoughts they could share other than making this an end table or night stand. Thanks Steve C

PS: Still waiting on the chassis for the Franky I'm restoring. I'll keep ya'll posted on the outcome.

Steve C

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[Message index]

		Challenger part By: cassent5150 on Sun, 12 December 2010 18:02
		Re: Challenger part By: chicagobill on Mon, 13 December 2010 11:39
		Re: Challenger part By: pleat on Mon, 13 December 2010 17:36
		Re: Challenger part By: cassent5150 on Mon, 13 December 2010 22:21
		Re: Challenger part By: cassent5150 on Mon, 13 December 2010 23:01
		Re: Challenger part By: stevem on Mon, 13 December 2010 12:09
		Re: Challenger part By: cassent5150 on Mon, 13 December 2010 22:30
		Re: Challenger part By: chicagobill on Mon, 13 December 2010 18:19
		Re: Challenger part By: pleat on Tue, 14 December 2010 17:01
		Re: Challenger part By: chicagobill on Tue, 14 December 2010 11:44
		Re: Challenger part By: cassent5150 on Tue, 14 December 2010 23:00
		Re: Challenger part By: Kustom_Bart on Tue, 14 December 2010 13:25
		Re: Challenger part By: cassent5150 on Tue, 14 December 2010 22:47
		Re: Challenger part By: Kustom_Bart on Wed, 15 December 2010 01:28
		Re: Challenger part By: cassent5150 on Wed, 15 December 2010 15:49
		Re: Challenger part By: chicagobill on Wed, 15 December 2010 11:58
		Re: Challenger part By: cassent5150 on Wed, 15 December 2010 14:41
		Re: Challenger part By: cassent5150 on Wed, 15 December 2010 15:45
		Re: Challenger part By: Kustom_Bart on Wed, 15 December 2010 15:47
		Re: Challenger part By: cassent5150 on Wed, 15 December 2010 16:53
		Re: Challenger part By: cassent5150 on Thu, 16 December 2010 21:08
		Re: Challenger part By: stevem on Thu, 16 December 2010 07:23
		Re: Challenger part By: cassent5150 on Thu, 16 December 2010 11:16
		Re: Challenger part By: chicagobill on Thu, 16 December 2010 12:24
		Re: Challenger part By: cassent5150 on Thu, 16 December 2010 17:19
		Re: Challenger part By: chicagobill on Thu, 16 December 2010 18:26
		Re: Challenger part By: cassent5150 on Thu, 16 December 2010 20:05
		Re: Challenger part By: stevem on Thu, 16 December 2010 12:27
		Re: Challenger part By: cassent5150 on Thu, 16 December 2010 17:31
		Re: Challenger part By: stevem on Thu, 16 December 2010 19:27
		Re: Challenger part By: stevem on Fri, 17 December 2010 06:58
		Re: Challenger part By: cassent5150 on Fri, 17 December 2010 20:15
		Re: Challenger part By: pleat on Sat, 18 December 2010 07:34
		Re: Challenger part By: cassent5150 on Sat, 18 December 2010 18:10
		Re: Challenger part By: pleat on Sat, 18 December 2010 19:24
		Re: Challenger part By: cassent5150 on Sat, 18 December 2010 21:37
		Re: Challenger part By: cassent5150 on Sat, 18 December 2010 20:50
		Re: Challenger part By: chicagobill on Fri, 17 December 2010 11:51
		Re: Challenger part By: cassent5150 on Sat, 18 December 2010 09:27
		Re: Challenger part By: Kustom_Bart on Sat, 18 December 2010 15:05
		Re: Challenger part By: cassent5150 on Sat, 18 December 2010 21:29
		Re: Challenger part By: stevem on Mon, 20 December 2010 10:10
		Re: Challenger part By: cassent5150 on Mon, 20 December 2010 14:28

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