Electrocompaniet ECP-1

Kanton · 15th February 2010, 07:30 PM

Hello,
Has anybody got sone noise problem with an Electrocompaniet ECP-1 pre-phono?
My problem is an "hum noise" generated after about 30 minutes after the power-on.
Many Thanks for all suggestions and Help.
Best Regards
Roberto

AMV8 · 15th February 2010, 08:37 PM

Hi
There are a few things that you can do to help and isolate the problem.
1)Is the hum present with or with out the cartridge connected - to check that it is not the cartridge since these are a common source of hum.
2)Is it on one or both channels
3)Is it possible to see if you have any hum with an alternative pre amplifier connected.
4)Check all mechanical connections and clean if possible. That is all the input and output wires.
5)Can you check if all earth connnections are connecting properly. Where these are soldered or bolted are they secure.
6) Does the hum increase with volume increases.
7)Does touching the turntable or cartridge or preamp alter the hum.
If you can check the above it should help isolate the problem.
Don

Kanton · 27th February 2010, 07:35 AM

Dear AMV8

Many Thanks
I solve the issue , It was an earth connection,
without the earth pole I avoidde the problems
Thanks again
Best Regards
Roberto

Kanton · 27th February 2010, 07:38 AM

Dear AMV8
Many Thanks.
I solve the issue, It was an earth connection loop,
I remove the earth pole from the ampli and I loose the noise.
Thanks again Best Regards
Roberto

15th February 2010, 07:30 PM	#1
Kanton diyAudio Member Join Date: Feb 2010	Electrocompaniet ECP-1 Hello, Has anybody got sone noise problem with an Electrocompaniet ECP-1 pre-phono? My problem is an "hum noise" generated after about 30 minutes after the power-on. Many Thanks for all suggestions and Help. Best Regards Roberto

27th February 2010, 07:35 AM	#3
Kanton diyAudio Member Join Date: Feb 2010	Electrocompaniet ECP-1 Dear AMV8 Many Thanks I solve the issue , It was an earth connection, without the earth pole I avoidde the problems Thanks again Best Regards Roberto

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15th February 2010, 08:37 PM	#2
AMV8 diyAudio Member Join Date: Jan 2005 Location: near london	Hi There are a few things that you can do to help and isolate the problem. 1)Is the hum present with or with out the cartridge connected - to check that it is not the cartridge since these are a common source of hum. 2)Is it on one or both channels 3)Is it possible to see if you have any hum with an alternative pre amplifier connected. 4)Check all mechanical connections and clean if possible. That is all the input and output wires. 5)Can you check if all earth connnections are connecting properly. Where these are soldered or bolted are they secure. 6) Does the hum increase with volume increases. 7)Does touching the turntable or cartridge or preamp alter the hum. If you can check the above it should help isolate the problem. Don

27th February 2010, 07:38 AM	#4
Kanton diyAudio Member Join Date: Feb 2010	Dear AMV8 Many Thanks. I solve the issue, It was an earth connection loop, I remove the earth pole from the ampli and I loose the noise. Thanks again Best Regards Roberto

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