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Thread Tools | Search this Thread |
2nd January 2006, 03:59 PM
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#1 |
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diyAudio Member
Join Date: Feb 2005
Location: -
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crackling sound CDM4
I have a problem with my CD player. It is a CDM4/31 type mounted in B&O Beocenter 8000.
It plays perfectly for apporx. 30 minutes. After that the sound distorts and crackling sound occurs in the high frequencies. Does anyboy have an idea wht the problem can be? and how to fix it. Thanks, Thomas |
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3rd January 2006, 09:58 PM
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#3 |
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diyAudio Moderator
Join Date: Jun 2004
Location: Georgetown, On
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Hi Thomas,
If you cool the circuit off, does it play longer before it starts? Removing the cover (difficult on B&O) may do this. I have seen everything from the brown glue cause this to digital filters, DSP chips and DACs. Mistracking may also cause distorted sound, as will a low HF signal. Can you record the sound in a sound file (ie MP3) and attach? This may give us more clues. -Chris |
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4th January 2006, 07:32 AM
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#4 |
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diyAudio Member
Join Date: Feb 2005
Location: -
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Jean-paul,
A TDA 1541 DAC is used. The crackling sound is on both channels. Thomas |
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4th January 2006, 09:01 AM
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#5 |
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diyAudio Member
Join Date: Dec 2003
Location: Sydney
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Use the freeze spray! Spray just a short burst on to 1541 and I bet the crackling noise will disappear.
Good luck, Extreme_Boky |
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4th January 2006, 10:59 AM
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#6 |
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diyAudio Moderator Emeritus
Join Date: Sep 2002
Location: Germany
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Exactly.
If the TDA1541A is the problem and you really like the cdplayer you could replace the chip for a silver crown version. I would advise you to replace all electrolytic caps too after you have solved this crackling noise problem.
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