Whistling noise from an Arcam delta 250 (cdm9 pro)

DRC · 24th October 2006, 03:34 PM

Hi, my arcam delta 250 transport is making some mechanical noise when playing - a kind of high frequency whistling noise. Its not loud but it can be heard at my typical listening levels. I think it has allways made some noise (bought second hand) - maybe its now worse or i am less tolerant

as it's now closer to my ear

Seems to work OK anyway but the noise is annoying ...

I did some research a while back and discovered it is fitted with the phillips CDM9-pro mechanics. Is this noise a sign of impending failure in the transport

thanks in advance, dave

DRC · 26th October 2006, 10:32 AM

Could this be the tracking servo working overtime ?

clem_o · 26th October 2006, 10:58 AM

Does the whistle ever 'change' in pitch or stop? Do you ever hear it get modulated (i.e. chatter), for example when doing a fast-forward?

Cheers

poynton · 26th October 2006, 11:57 AM

Quote:

Originally posted by DRC
Hi, my arcam delta 250 transport is making some mechanical noise when playing - a kind of high frequency whistling noise. Its not loud but it can be heard at my typical listening levels. I think it has allways made some noise (bought second hand) - maybe its now worse or i am less tolerant as it's now closer to my ear Seems to work OK anyway but the noise is annoying ...

I did some research a while back and discovered it is fitted with the phillips CDM9-pro mechanics. Is this noise a sign of impending failure in the transport

thanks in advance, dave

Hi.

The early CDM-12 mechanism suffered from a similar problem. A mod kit was available and later versions were slightly different. The mod was to the small metal disk in the centre of the clamping mechanism. A 5p coin glued to the disk solves this problem.

It may help. Worth a try ?

Andy

24th October 2006, 03:34 PM	#1
DRC diyAudio Member Join Date: Jan 2003 Location: UK (south west)	Whistling noise from an Arcam delta 250 (cdm9 pro) Hi, my arcam delta 250 transport is making some mechanical noise when playing - a kind of high frequency whistling noise. Its not loud but it can be heard at my typical listening levels. I think it has allways made some noise (bought second hand) - maybe its now worse or i am less tolerant as it's now closer to my ear Seems to work OK anyway but the noise is annoying ... I did some research a while back and discovered it is fitted with the phillips CDM9-pro mechanics. Is this noise a sign of impending failure in the transport thanks in advance, dave

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26th October 2006, 10:32 AM	#2
DRC diyAudio Member Join Date: Jan 2003 Location: UK (south west)	Could this be the tracking servo working overtime ?

26th October 2006, 10:58 AM	#3
clem_o diyAudio Member Join Date: Jun 2005 Location: Manila	Does the whistle ever 'change' in pitch or stop? Do you ever hear it get modulated (i.e. chatter), for example when doing a fast-forward? Cheers

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