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Old 29th December 2008, 09:42 PM   #21
pnimrod is offline pnimrod  Hungary
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Join Date: Dec 2008
Hello guys,

I have an ECI-3 and I experience the following problem:

1. When I turn on the amp, 5-6 hours long the sound is great.
2. Then begins a distortion on the high frequencies, but only on the left channel.
3. The distortion is volume-independent.
4. After a few hours the problem is over, the sound is normal, again.

Can somebody give me some advice or a service manual to the ECi-3? I live in Hungary.


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Old 3rd November 2014, 01:19 PM   #22
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Join Date: Nov 2014
Hi Pnimrod,

I found this thread, because I have the same problem with my ECI-3. Did you find a solution for the problem? I hope to hear from you, pretty desperate here....
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Old 20th January 2015, 09:48 PM   #23
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ampexperts's Avatar
Join Date: Feb 2014
Location: New Milford, CT
And ECI-4 just arrived in our shop from across the country, dropped off by UPS.

Customer says that when he powered it on, "it tried to destroy itself". Visual inspection reveals Q21-Q23 and R620 burnt. Given that it's a PCB-based amp and not point to point wired, a schematic becomes a necessity when signal tracing and troubleshooting.

Click the image to open in full size.

My usual search sources came up dry. Does anyone have one that they could share? Much appreciated.
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File Type: jpg ECI-4.jpg (63.6 KB, 31 views)
Mark A. Weiss, P.E.
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