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Parasound JC-1s Not Working

I just bought a pair of used JC-1s on Audiogon. The amps sounded fine until I was shuting down my preamp. My preamp is a tube linestage. While I was turning off the linestage, I heard some funny noise from both amps. Feeling uncomfortable about the noise, I turned the linestage back on. Surprisingly, the left channel amp did not work. The power was on but no signal.

I don't think it was the fuse. I swapped the external fuses between the two monoblocks. But it still did not work.

I wonder if this ever happens to you, JC-1s owners. Is there a switch or something inside the amp to reset? I flipped all the swithces on the back panel hoping that I could get the signal back. Still no use.

I am going to call Parasound on Monday. I know I won't have warranty since this is used. But before I call, do you folks have any suggestions? Thanks.
audiolui
audphile1's avatar
audphile1
4,892 posts
 
despite the test at radioshack(I wouldn't rely on it anyway), I would still replace the fuses. Sometimes the fuse is blown right under the metal cap and you can't see it. Sometimes when the fuse blows it welds itself together again.
It's only few dollars....replace them before sending the amps to the factory.
audiolui OP
295 posts
 
But I also tested all the fuses myself with a meter set to ohm. They all had readings.
dacspool3099
3 posts
 
Let us know what you find out. I'm not a JC1 owner, but may be soon and would be interested to see what happened and what your experience was like with Parasound's customer service/support.
audiolui OP
295 posts
 
I just shipped the amp to Parasound. So far the tech seemed fine and quick giving me RA # to return the amp for repair. I have yet to find out how much the repair is going to be. The tech said the labor is $75 per hour. Update will follow.
metralla
945 posts
 
Thanks. Please keep us informed.

Regards,
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