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Ch 00 - 07 and 90
GU Measurements
26 Verification Tests
Figure 2-4. Ch 0-7 and 90 LO Measurement Connections
3. Repeat for Channels 01 - 07 LO and Channel 90 LO
Repeat steps 1 and 2 for channels 01 - 07 LO and 90 LO
–
Use
–
card # and
For Channel 90 LO, subtract combined value of R21 + R27
–
1. Make Hardware Connections
Turn mainframe power OFF
–
Connect DMM leads as shown in Figure 2-5
–
Turn mainframe power ON
–
Figure 2-5. Ch 00-07 and 90 GU Measurements Connections
2. Measure Channel 00 GU Resistance
Send
–
Send
–
Trigger the DMM with
–
Send
–
Subtract measured value of R22 from DMM reading
–
Enter the result in Table 2-2 for Channel 00 GU
–
and
CLOS (@nncc)
OPEN (@nncc)
= channel # (omit leading zeroes in
cc
to multiplexer
*RST
to close chan 00, where
CLOS (@nn00)
TRIG SGL
to open channel 00
OPEN (@nn00)
, where
=
nn
)
nn
= card #
nn
and note reading
Chapter 2
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