Service manual

• Set DMM to measure 4-wire Ohms
• Connect DMM leads as shown in Figure 2-3
• Turn mainframe power ON
2. Measure Channel 0 C to NC Resistance
• Send *RST to Module
• Send CLOS (@nn00:nn31) to close all channels, where nn = card
# (typically 01)
• Send OPEN (@nn00) to open channel 0, where nn = card #
(typically 01)
• Trigger the DMM with TRIG SGL and note reading
• Enter the result in Table 2-1 for Channel 0 C to NC
• Send CLOS (@nn00) to close channel 0, where nn = card #
(typically 01)
3. Repeat for Channels 1 through 31
• Repeat step 2 for channel 1 through 31 C to NC
• Use OPEN (@nncc) and CLOS (@nncc), where nn = card # and
cc = channel # (omit leading zeroes in nn)
Figure 2-3. Common to NC Test Connections
Chapter 2 Verification Tests 23