Digital Clock Noise

Please allow me to correct my description of the noise. It is not really like tweeting and chirping. It is like this:

If you pucker your lips and make a shooshing noise while pulling your cheeks in and out from having your mouth pointed to having it pulled back in a grin - that pretty much approximates the noise.

Comments, please?

Am I serious about how to make the noise or am I serious that the noise bothers me? I listen to only classical music and there are often soft passages where system noises can be annoying if they exist. If the right channel is noise free, why should I not expect the left channel to be noise free also? I happen to own two of these players and the other one does not produce this strange noise. I am hoping that a fellow Audiogoner will come up with the professional name of the noise so that I can communicate that to the repair technician instead of making weird noises at him. Oh well . . .

Thanks, Jud!
I did spend $35 for a diagnosis. When I dropped the player off, I mouthed my strange noises and the man at the counter immediately said that it was indeed some kind of digital noise - but probably not clocking noise. Within 24 hours the technician telephoned me and said that it was a problem with the main processing board. We were amazed that the board was still available - for almost $500. The labor would have been another $100. He said that it was not possible to try to repair the main board piecemeal - or at least not realistic. We mutually agreed that a repair was not cost effective. He further advised me to save the old unit for parts, especially since I own two of these units and the transport in the defective player still works fine. Oh well . . .
One must understand that there are certain risks to buying vintage equipment.