Disassemble the Module

Complete the following sets of steps to disassemble your module, replace a failed relay, and reassemble your module.

  1. Ground yourself using a grounding strap or a ground connected to your PXI chassis.
    Note Properly grounding yourself prevents damage to your module from electrostatic discharge.
  2. Locate the relay you want to replace.
    1. Determine the channel name for the relay using the Bank Connection Diagram for your topology.
    2. Match the channel name to its corresponding relay name using the following tables.
      Table 2. Daughterboard Relay Locations (Top View)
      Channel NameRelay NameChannel NameRelay NameChannel NameRelay NameChannel NameRelay Name
      B0ROC0K72B0R1C0K80B0R2COK88B0R3C0K96
      B0ROC1K71B0R1C1K79B0R2C1K87B0R3C1K95
      B0ROC2K70B0R1C2K78B0R2C2K86B0R3C2K94
      B0ROC3K69B0R1C3K77B0R2C3K85B0R3C3K93
      B0ROC4K1B0R1C4K9B0R2C4K17B0R3C4K25
      B0ROC5K2B0R1C5K10B0R2C5K18B0R3C5K26
      B0ROC6K3B0R1C6K11B0R2C6K19B0R3C6K27
      B0ROC7K4B0R1C7K12B0R2C7K20B0R3C7K28
      B0ROC8K68B0R1C8K76B0R2C8K84B0R3C8K92
      B0ROC9K67B0R1C9K75B0R2C9K83B0R3C9K91
      B0ROC10K66B0R1C10K74B0R2C10K82B0R3C10K90
      B0ROC11K65B0R1C11K73B0R2C11K81B0R3C11K89
      B0ROC12K5B0R1C12K13B0R2C12K21B0R3C12K29
      B0ROC13K6B0R1C13K14B0R2C13K22B0R3C13K30
      B0ROC14K7B0R1C14K15B0R2C14K23B0R3C14K31
      B0ROC15K8B0R1C15K16B0R2C15K24B0R3C15K32
      Table 3. Daughterboard Relay Locations (Bottom View)
      Channel NameRelay NameChannel NameRelay NameChannel NameRelay NameChannel NameRelay Name
      B1ROC0K104B1R1C0K112B1R2COK120B1R3C0K128
      B1ROC1K103B1R1C1K111B1R2C1K119B1R3C1K127
      B1ROC2K102B1R1C2K110B1R2C2K118B1R3C2K126
      B1ROC3K101B1R1C3K109B1R2C3K117B1R3C3K125
      B1ROC4K33B1R1C4K41B1R2C4K49B1R3C4K57
      B1ROC5K34B1R1C5K42B1R2C5K50B1R3C5K58
      B1ROC6K35B1R1C6K43B1R2C6K51B1R3C6K59
      B1ROC7K36B1R1C7K44B1R2C7K52B1R3C7K60
      B1ROC8K100B1R1C8K108B1R2C8K116B1R3C8K124
      B1ROC9K99B1R1C9K107B1R2C9K115B1R3C9K123
      B1ROC10K98B1R1C10K106B1R2C10K114B1R3C10K122
      B1ROC11K97B1R1C11K105B1R2C11K113B1R3C11K121
      B1ROC12K37B1R1C12K45B1R2C12K53B1R3C12K61
      B1ROC13K38B1R1C13K46B1R2C13K54B1R3C13K62
      B1ROC14K39B1R1C14K47B1R2C14K55B1R3C14K63
      B1ROC15K40B1R1C15K48B1R2C15K56B1R3C15K64
    3. Use the relay name to locate the relay on the daughterboard.
      Note Relay names are printed on the PCB.
      Note Older versions of this module might have plastic lead covers that you must remove. The module retains full specifications even if these covers are not reinstalled.
  3. Remove the four screws and two lead covers (if present) that secure the daughterboard to the switch assembly.
  4. To gain access the bottom of the daughterboard, disconnect the PCB interconnect cable by lifting the PCB cable latch on the J1 connector.
  5. Locate the assembly and serial number labels on the board with the relay you want to replace. White labels indicate the board was assembled using lead solder (Sn 63 Pb 37). Green labels indicate the board was assembled using lead-free solder (Sn 96.5 Ag 3.0 Cu 0.5). Lead-free assemblies have assembly numbers ending in L.