GE Analytical Instruments, Inc. ©2005H Page 3 of 4 DIN 74740 Rev. A
Kit, Interconnect Board Repl., 500
Figure 3 Interconnect Board Wiring
5.10 Remove the interconnect board.
5.10.1 Remove the screws that attach the system board guides to the interconnect board. Remove
the guides and set them aside in a safe place.
5.10.2 Disconnect all the wiring connected to the interconnect board, nine connections in all (reading
clockwise: P1, P6, P4, P5, P7, P9, P2, P50, and RS-232). Refer to Figure 3.
5.10.3 Remove the four mounting screws that secure the interconnect board to the Analyzer. Retain
the screws.
5.10.4 Remove the I/O board guides from the interconnect board by removing the screws located on
the back of the interconnect board. Set the guides and screws aside in a safe place.
5.10.5 Remove the new interconnect board from the packaging.
5.10.6 Secure the I/O board guides to the new interconnect board.
5.10.7 Secure the system board guides to the new interconnect board.
5.10.8 Secure the interconnect board to the Analyzer by tightening the four screws.
5.10.9 Restore all connections to the interconnect board. Refer to Figure 2.
5.11 Replace the system and I/O boards.
5.11.1 Carefully place the system board into the Analyzer by sliding it into the guides on the
interconnect board until fully seated. Once the board is fully seated, secure the locking pins by
pushing up on the black button. If you cannot push in on the pins, the board is not fully seated.
5.11.2 Carefully place the I/O board into the Analyzer by sliding it into the guides on the interconnect
board until fully seated. Once the board is fully seated, secure the locking pins by pushing up
on the black button. If you cannot push in on the pins, the board is not fully seated.
5.11.3 Reconnect the UV lamp power connector to the I/O board.
5.11.4 If you removed any of the terminal blocks, replace them now by pushing the terminal block in
to the connector until it is fully seated.
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