Harrison Power Amplifiers

Aug · 5th June 2006, 09:25 AM

Hi, I wonder if any of you guys can help me out?

I am trying to find some service details for a Large Harrison Power Amplifier - Model Compu-tec 5000.

I've had very little success in finding any info about the company ever existing, but I know they had several pro audio products on the market some time ago.

I keep coming across a Harrison Labs that speacialise in Car stuff, I don't think it's the same company.

I beleive this Harrison were based in UK, possibly Cambridge.

Any info on Schematics, Service Agents, where are they now etc, would be very much appreciated.

Thanks

Leolabs · 6th June 2006, 02:47 AM

What's the problem with it???

Aug · 6th June 2006, 12:11 PM

Hi Leo, thanks for taking time out to reply.

The Power Amps themselves are fine, but there is a fault on the Soft Start, Thermal Protection PCB.

Unfortunately someone has attempted to repair before, some of the components look a little dubious, that's why I would like to get hold of schematic.

Can you help?

Thanks

Aug

TroelsM · 6th June 2006, 12:34 PM

Hi.

4 years ago I tried to find a schematic for a Harrison Xi600 amp.

A company called "high end musikservice" ( I think...) in Denmark had schematics, and would sell me a copy for approx 10-20Euro.

Here's a link: http://www.highendmusik.dk/21.html

I don't know if they are able to help you.

Regards TroelsM

Aug · 6th June 2006, 09:53 PM

Hi Thanks TroelsM, I'll give them a try.

Aug

Aug · 11th June 2006, 09:43 AM

Hi Guys, thanks for your help.

Not much luck with tracking down any data, although the links you provided did respond.

Problem solved now, as I suspected someone had previously attempted a repair and put the wrong pin configuration triac in the soft start circuitry.

Regards

Aug

lee.basham · 19th June 2007, 03:16 PM

I have Harisson circuits but i have to scan them in, time is the killer here. if you let me kow which ones you need i can let you know if i have them and see if i can get it down to a smaller size (some are on A0 paper so bear wih me

thanks
Lee Basham

TroelsM · 19th June 2007, 03:34 PM

I would be very grateful to get a copy of the schematics of Harrison Xi600 amp.

It seems to include some novel aspects and folks might be interested.

Regards TroelsM

vinyvamos · 17th July 2008, 02:27 PM

I have a Harrison Xi2000 which has a fault in the standby circuit on one channel. It would be great to get a schematic for it! I got it for £20 which is nothing even for the scrap value of it. It's built really well! Full dual monobloc!

5th June 2006, 09:25 AM	#1
Aug diyAudio Member Join Date: Jul 2005 Location: London	Harrison Power Amplifiers Hi, I wonder if any of you guys can help me out? I am trying to find some service details for a Large Harrison Power Amplifier - Model Compu-tec 5000. I've had very little success in finding any info about the company ever existing, but I know they had several pro audio products on the market some time ago. I keep coming across a Harrison Labs that speacialise in Car stuff, I don't think it's the same company. I beleive this Harrison were based in UK, possibly Cambridge. Any info on Schematics, Service Agents, where are they now etc, would be very much appreciated. Thanks

6th June 2006, 12:11 PM	#3
Aug diyAudio Member Join Date: Jul 2005 Location: London	Harrison Computek 5000 Hi Leo, thanks for taking time out to reply. The Power Amps themselves are fine, but there is a fault on the Soft Start, Thermal Protection PCB. Unfortunately someone has attempted to repair before, some of the components look a little dubious, that's why I would like to get hold of schematic. Can you help? Thanks Aug

6th June 2006, 12:34 PM	#4
TroelsM diyAudio Member Join Date: May 2003 Location: AARHUS. DK	Hi. 4 years ago I tried to find a schematic for a Harrison Xi600 amp. A company called "high end musikservice" ( I think...) in Denmark had schematics, and would sell me a copy for approx 10-20Euro. Here's a link: http://www.highendmusik.dk/21.html I don't know if they are able to help you. Regards TroelsM __________________ Visit my blog at: http://kofoedmejer.squarespace.com/ and have a look.

19th June 2007, 03:16 PM	#7
lee.basham diyAudio Member Join Date: May 2006 Location: Cambridgeshire	Harrison circuits I have Harisson circuits but i have to scan them in, time is the killer here. if you let me kow which ones you need i can let you know if i have them and see if i can get it down to a smaller size (some are on A0 paper so bear wih me thanks Lee Basham

19th June 2007, 03:34 PM	#8
TroelsM diyAudio Member Join Date: May 2003 Location: AARHUS. DK	I would be very grateful to get a copy of the schematics of Harrison Xi600 amp. It seems to include some novel aspects and folks might be interested. Regards TroelsM __________________ Visit my blog at: http://kofoedmejer.squarespace.com/ and have a look.


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6th June 2006, 02:47 AM	#2
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	What's the problem with it???

6th June 2006, 09:53 PM	#5
Aug diyAudio Member Join Date: Jul 2005 Location: London	Hi Thanks TroelsM, I'll give them a try. Aug

11th June 2006, 09:43 AM	#6
Aug diyAudio Member Join Date: Jul 2005 Location: London	Hi Guys, thanks for your help. Not much luck with tracking down any data, although the links you provided did respond. Problem solved now, as I suspected someone had previously attempted a repair and put the wrong pin configuration triac in the soft start circuitry. Regards Aug

17th July 2008, 02:27 PM	#9
vinyvamos diyAudio Member Join Date: Jan 2006 Location: West Coast Of Ireland	I have a Harrison Xi2000 which has a fault in the standby circuit on one channel. It would be great to get a schematic for it! I got it for £20 which is nothing even for the scrap value of it. It's built really well! Full dual monobloc!

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