Model:     IC-R7000
Bulletin:  B1903

Subject:   Increase the number of memory channels to 200


1.  Cut foil trace to IC-8 pin 19 on the logic board to remove
    it from ground.

2.  Add a 47K resistor and between pin 19 and pin 24 of IC-8.

3.  Add a SPST switch from pin IC-8 pin 19 to ground.

Operation

1.  With the new switch closed access to memory channel 0 to 99 is possible.

2.  With the new switch open access to memory channels 100 to
    199 is possible.

Note:  It is not possible to scan between the two banks of memory.