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Well I got all the parts in today and put the amp back together. I fired it up using a light bulb limiter and all was good. According to my Sencore Powerite,...
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Thanks for posting the correct schematic and layout Enzo!! Much easier to track down where the parts are. I checked the zeners (CR118 and CR121) and the 700...
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Hello again folks,
Sorry I didn't post anything sooner. My internet was down over the weekend. Anyway, I included a couple of photos of the board...Last edited by tonecat; 10-25-2011, 04:25 AM.
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Thanks Jazz. I will wait until all the parts get here and I get them installed before I fire it up. I just want to make sure I don't fry any of the new parts...
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Thanks for the help guys!! I guess I kinda thought that I should replace all of them and the drivers too. I checked all the .33 ohm ballast resistors and...
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Thanks for the reply. I will call them tomorrow and see if I can just get all the parts from them. I tested all the power transistors using this method: ...
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Peavey 2.6C Question
Hello,
Working on a Peavey 2.6C power amp. The owner hooked it up to a shorted speaker cable. When I turned it on, it tripped the breaker after making...
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Hey Everyone,
Just thought I would follow up and thank you for the help!! Sure enough Q1 was bad. A lot of things wrong with this amp all at the...
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I finally got around to replacing the pot with the two 220 ohm resistors and low and behold, the amp is hum free!! Thanks Enzo!! Now to the bright circuit....Last edited by tonecat; 09-28-2011, 09:39 AM.
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Enzo. You are a genius!! I pulled all the tubes and checked the pot the way you suggested and sure enough, it was bad. I clipped the pot off so I didn't have...
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Thanks Enzo. I put the amp all back together after fixing the power tube circuit because I saw those ground points and just figured it would be easier to...
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Thanks for the help Enzo. I was hoping maybe you would have a look. I checked R112 and it reads right at 100 ohms. The pot is not shorted or open because...
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I should have posted this in the guitar amps maintenance part of the forum. Not sure how to move it? Sorry!!
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Crate BV 6212 Problem?
Hello Everyone,
I am working on a BV 6212 with a hum balance control on it. First off, I can't find the correct schematic that shows the hum balance...
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Hello Again,
Sorry it took me so long to get back on here. I was waiting on parts. The parts have arrived and lo and behold, the amp is fixed!!!!!...
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Hello Mark. Thanks again for continuing to help me. I found the exact schematic for my board revision (PWA 102139-8) on pages 555-557 (drawing 102141 Rev....Last edited by tonecat; 04-15-2011, 07:18 AM.
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Hello Again. I finally got back to work on this thing. Decided to give it one more try before aborting the mission. I took the circiut board out of the chassis...
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Thanks for all your help Mark!! Sorry about posting so many voltages. It makes sense to only post the ones that matter. This is so much more complicated than...
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OK. Did some more testing. I checked base-emitter voltages by using TP38 and the output inductor on CH1 and it was .33vdc. I then did the same thing using...Last edited by tonecat; 04-08-2011, 05:44 AM.
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Thanks Mark!!
All the emitter resistors are underneath the circuit board and impossible to get to without complete disassembly of the amp. There...
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Hello and Thanks for the replies!!
I decided to go agead and give it a go. I have not worked on a lot of solid state amps. Maybe ten or so. Here...
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