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-   -   Sony - MHC-1600 Stereo / CD Player (http://www.diyaudio.com/forums/solid-state/53834-sony-mhc-1600-stereo-cd-player.html)

Rusty777 19th March 2005 06:45 PM

Sony - MHC-1600 Stereo / CD Player
 
Hi,
I have a Sony combo cd/stereo Model MHC-1600 / HCD-H1600 and I have a high pitch hum when I put it in the CD mode only.

Would anyone have any suggestions on the problem ?

Thanks

anatech 19th March 2005 10:39 PM

Hi Rusty777,
Is the noise coming from the laser assy or the speakers?

-Chris

Rusty777 20th March 2005 07:22 AM

Sony-MHC-1600 cd / High pitch Noise
 
Hi Chris,
The high pitch noise is only when you are playing a cd. You only get the noise without any audio. But the counter and tracks for forward and backward works just like it is playing a cd?

Thanks for any help.

anatech 20th March 2005 02:42 PM

Hi Rusty777,
If the noise is mechanical from the mechanism area, it is from the lense of the laser assy. Could be a servo is oscillating (gain too high). The servo's normally make a white noise type sound. You can't normally hear this.
If the noise comes from the speakers you may have a problem in the filter stage or servo noise may be getting into the audio. You need a 'scope to check further in this casse.
-Chris

Rusty777 20th March 2005 04:09 PM

Sony - MHC-1600 Stereo
 
Hi Chris,

Thanks for the help !


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