Help with my Crest Audio P.A

flightparties · #1 02-01-2006, 06:17 AM

Hi friends

My old school Crest Audio Power amplifier Power series Model 300 has channel A allways cliping even with a low input signal. Any Idea or web to download troubleshooting guides or schematics?

Thanks in advance:

louped garou · #2 02-01-2006, 01:12 PM

http://www.musicparts.com/products.asp?Company=Crest

not my site, but they have the schematic here...

flightparties · #3 02-01-2006, 03:05 PM

Thank you for share this info

some pics of the patient

Thanks for all Channel A (Faulty) It´s with a red sticker

louped garou · #4 02-01-2006, 03:50 PM

http://www.crestaudio.com/service/

You may have seen this already, but maybe you can call crest directly to get the password for the schematic section of their service website......

flightparties · #5 02-02-2006, 06:09 AM

Hi thank you very much Louped Garou for your help, After a long, long night I solved problem, I found 6 bad solder points and after resolder and hard testing with 8 Ohm Charges at full power, I can say everything is OK

Now It´s time to sleep

Thank you very much Louped for your support again

animal · #6 02-04-2006, 01:03 PM

Thats good that it was a pretty easy fix. I was never a big fan of the older crest amps but that was just ignorance on my part. Just took a look at the new stuff. The specs are awsome. Have you worked with any of the new crest line? Just wondering.

animal

flightparties · #7 02-05-2006, 08:17 AM

I just worked with older Power in line series (pictures) and with 3001 and 5001 series, I also worked with Carver very good relation between Wats:Weight