Optimus 120-2152 - Manual (Page 21)

AM/FM Car CD Player
(120-2152) Troubleshooting Faxback Doc. # 37646
If your stereo's CD player is not working as it should, it displays an
error indicator and ejects the loaded CD. These suggestions might help
you eliminate the problem.
Indicator Problem Suggestion
E01 Loading and/or unloading Make sure a disc is loaded. If it
operation fails. is not, insert the disc properly.
If it is, eject the disc and load
it again.
E07 The CD is loaded Reload the CD with the label side
incorrectly. up.
The CD is dirty or Clean the CD or try another CD.
defective.
L Err Abnormal CD operation. Contact your local Radio Shack
store for assistance.
If the stereo still does not operate properly, the connecting pins in the
recess or on the back of the control panel might be dirty. Use a soft
cloth or a contact cleaner (such as Cat. No. 64-4340) to clean them.
(new illus)
If the stereo still does not operate properly, take it to your local
Radio Shack store for assistance.