Using Clip Modules 6.3.3.
You may be asked to connect an I/O module to a UUT
component by clipping over it. For example, the display may
read:
CLIP u3
PRESS BUTTON ON I/O MOD WHEN READY
I/O modules are connected to DIP components by clip modules.
The part number of a clip module tells you the size of the DIP it
clips over. For example, a
2%pin
clip module is
labelled
“Y91OOA-28D.”
Clip modules for
2%
and 40-pin
DIPS
fit over both I/O module
connectors “A” and “B.” Other clip modules can fit over either
I/O module connector “A” or
“B”
as desired.
If asked, for example, to “CLIP
U3”
and “PRESS BUTTON
ON I/O MOD WHEN READY” do so as follows:
1.
Identify U3 on the UUT layout diagram, which
locates U3 on the UUT and tells you that U3 is, for
example, a 20-pin DIP IC.
2.
Pick out the necessary clip module-in this case, a
Y9 lOOA-20D.
3.
Plug the clip module into either the “A” or the
“B”
connector on the I/O module.
4. The clip at the end of the cable fits over U3, as
shown in Figure 6-2. Use the grey wire on the cable
to locate pin 1 on the clip; line it up with pin 1 on the
DIP IC.
5.
Connect the clip module’s common clip to the
UUT’s
common point.
--
-
6.
Press the ready button on the clip module.
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