User Guide

Chapter 1 Getting Started
14
Changing Reference Designators and Part Values
Change part values and reference designators by
double-clicking them and typing a new value in the dialog
box.
Changing U8A to U9B
1 Double-click U8A to display the Edit Reference
Designator dialog box.
2 Type
U9 in the Package Reference Designator text box.
3 Type
B in the Gate text box.
4 Click OK.
Changing R9 from 1 kohm to 100 kohm
1 Double-click 1k (next to resistor R9) to display the Set
Attribute Value dialog box.
2 Change 1k to 100k.
3 Click OK.
Now, change the value of R10 to 100k and the values of R3
through R8 to 10k.
W
h
en you p
l
ace a part on t
h
e sc
h
ematic,
the part is automatically assigned a
reference designator and a gate (if it is a
multi-part component). For instance, when
you placed the 74123 part, it was assigned
something like U8A (that is, reference
designator U8 and gate A).
I
f
you p
l
ace
d
any o
f
t
h
e components in an
order other than the sequential order
shown in Figure 2, use this feature now to
change the reference designators to match
the schematic in Figure 2.