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Step 5 - Read the existing latch data
Read the decimal number next to the data: display.
Step 6 - Evaluate the latch data
1. Convert the decimal latch data to it's binary equivalent.
2. From the tables at the end of this chapter, evaluate each of the latch's
bits.
Step 7 - Calculate and enter the new latch data
1. Change the appropriate bit(s).
2. Convert the binary number back to decimal. (If needed, refer to the
tables at the end of this chapter for the bits' weight.)
3. This decimal number is the new latch data.
4. Press the
LATCH DATA
the numeric keypad and then press the
Advanced Hardware Control
To Set A Hardware Latch
softkey and enter the calculated latch data with
softkey.
ENTER
HP 70427A/HP 70428A User's Guide 8-3
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