THE R5000 FREQUENCIES CHANGE INTERFACE

THE R5000 FREQUENCIES CHANGE COMPUTER INTERFACE

R5000 receivers below serial number 804xxxx may not change frequency when operated with a personal computer interface. To allow correct operation, replace IC-52 on the Control Unit. The correct part number for IC-52 is MBM27C128-25JA2. Caution: The R-5000 incorporates CMOS technology. Observe precautions for handling electrostatic sensitive devices. This modification may be performed under warranty. Time required for this change is 1/2 hour or less.

SOURCE: QRZ THE HAM RADIO CDROM