Parasound HCA-2205AT

dkahs · 7th September 2008, 05:08 PM

I have a Parasound Amp HCA-2205AT and during a movie the amp would go in to "Standby" then back to normal. I also notice that one side of the amp gets hotter than the other. Anyone know anything about this. I was told that it might be a relay going bad, that's causing it to go into "standby".

john curl · 7th September 2008, 07:12 PM

Is it overheating, or oscillating?

dkahs · 7th September 2008, 10:26 PM

No it not over heating. One side is warmer than the other.

Wavebourn · 7th September 2008, 10:38 PM

I remember humidity in Florida, so probably it is a relay...

john curl · 8th September 2008, 12:38 AM

It is probably overheating on one side. It happened to me with my present power amp, an HCA2500. I had to readjust the bias. You might talk to Tony at Parasound.

dkahs · 8th September 2008, 02:58 AM

Where is the relay located? Is it in the back in front of the back channel card on the bottom underneath the controller card? Does anyone know?

dkahs · 8th September 2008, 02:58 AM

Where is the bias? I have talk to parasound and he did say something about the bias.

john curl · 8th September 2008, 07:27 AM

A temporary fix can be a small fan directed on the hotter heat sink. If the problem goes away, then you know that it is bias setting. A square 'whisper fan' will do.

dkahs · 9th September 2008, 01:40 AM

But the only thing is, it comes on for a few minutes then goes into standby and stays.

john curl · 9th September 2008, 07:01 PM

I would first try the fan, BUT you might have to have it in for service. Please don't listen to outsiders to this design on this subject. It will only confuse you and potentially break the unit. Please contact Parasound for the closest warranty station in your area.

7th September 2008, 05:08 PM	#1
dkahs diyAudio Member Join Date: Sep 2008	Parasound HCA-2205AT I have a Parasound Amp HCA-2205AT and during a movie the amp would go in to "Standby" then back to normal. I also notice that one side of the amp gets hotter than the other. Anyone know anything about this. I was told that it might be a relay going bad, that's causing it to go into "standby".

7th September 2008, 10:38 PM	#4
Wavebourn diyAudio Member Join Date: Sep 2006 Location: Pleasant Hill, CA	I remember humidity in Florida, so probably it is a relay... __________________ If I disappear suddenly, that means I finally created a time machine and pushed wrong button that brought me to Stalin's Russia. In any experiment any result is the result. Even if it is negative.

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7th September 2008, 07:12 PM	#2
john curl diyAudio Member Join Date: Jul 2003 Location: berkeley ca	Is it overheating, or oscillating?

7th September 2008, 10:26 PM	#3
dkahs diyAudio Member Join Date: Sep 2008	No it not over heating. One side is warmer than the other.

8th September 2008, 12:38 AM	#5
john curl diyAudio Member Join Date: Jul 2003 Location: berkeley ca	It is probably overheating on one side. It happened to me with my present power amp, an HCA2500. I had to readjust the bias. You might talk to Tony at Parasound.

8th September 2008, 02:58 AM	#6
dkahs diyAudio Member Join Date: Sep 2008	Where is the relay located? Is it in the back in front of the back channel card on the bottom underneath the controller card? Does anyone know?

8th September 2008, 07:27 AM	#8
john curl diyAudio Member Join Date: Jul 2003 Location: berkeley ca	A temporary fix can be a small fan directed on the hotter heat sink. If the problem goes away, then you know that it is bias setting. A square 'whisper fan' will do.

9th September 2008, 01:40 AM	#9
dkahs diyAudio Member Join Date: Sep 2008	But the only thing is, it comes on for a few minutes then goes into standby and stays.

9th September 2008, 07:01 PM	#10
john curl diyAudio Member Join Date: Jul 2003 Location: berkeley ca	I would first try the fan, BUT you might have to have it in for service. Please don't listen to outsiders to this design on this subject. It will only confuse you and potentially break the unit. Please contact Parasound for the closest warranty station in your area.