Service manual

• Set DMM to measure 4-wire Ohms
• Turn mainframe power ON
2. Measure Channel 0 C to NO Resistance
• Send *RST to Module
• Send CLOS (@nn00) to close channel 0, where nn = card #
(typically 01)
• Trigger the DMM with TRIG SGL and note reading
• Send OPEN (@nn00) to open channel 0, where nn = card #
(typically 01)
• Enter the result in Table 2-1 for channel 0 C to NO
3. Repeat for Channels 1 through 31 C to NO
• Repeat step 2 for channels 1 through 31
• Use OPEN (@nncc) and CLOS (@nncc), where nn = card # and
cc = channel # (omit leading zeroes in nn)
Channel 0 C to NC
Measurements 1. Make Hardware Connections
• Turn mainframe power OFF
Figure 2-2. Common to NO Test Connections
22 Verification Tests Chapter 2