Radio Shack TRS-80 PC-3 Owner's Manual page 245

KEY OPERATION SEQUENCE
Step No. Key Input Display
Remarks
1
@ElCID
X(1)=14.1
2
(ENTER)
F (1) = 8
3 (ENTER) X(2) = 14.1
@El ©
is used to input the revised values
when data errors are found
4
@El©
X(2) =
REVISION VALUE = ? _
Revised value is input
5 14.2 (ENTER) F(2) = 19
(ENTER)
250