Several months ago my wife punched in a series of random numbers on my control panel.  Now, whenever I turn on my system, it locks on the CD player, which I do not have any more as after replacing 3-lasers, replacement parts are not available here in California.  As a result I cannot turn on the receiver or the phonograph; I have tried disconnecting everything and restarting, but it does not work.  Can anyone tell me how to reset this and help me get my music back?

waterprsn

I would get to the PCB4 - mounted vertically, behind the display panel. There you will find a 3V lithium battery. I would unsolder that, leave it overnight, and then resolder it.

If you had to replace your laser 3 times on the CD5500, I would say that your service technician should go back to school - there are certain adjustments which have to be done after replacing the laser - spares are still available, and if you had been on this forum then, your CD5500 would probably still be giving you pleasure.

Sony lasers must never be adjusted after installation, but Philips lasers (in this CD5500) most definitely do require aadjustment.

Menahem

Menahem,

I followed your directions and actually left the battery disconnected for several weeks to make sure, and also took out the fuse.  Still is locked on the CD player.  At least I got to see the insides and do some gentle cleaning.  Any other thoughts?  No one else seems to have any ideas.

Doug