Denon DN-200AZB User manual

6060 Spine Road
Boulder, CO 80301 USA
T 303 444 2009
F 303 444 9543
GE Analytical Instruments, Inc. ©2005H Page 1 of 4 DIN 74740 Rev. A
Kit, Interconnect Board Repl., 500
Replacing the Interconnect Board in the Sievers*500 RL TOC Analyzer
1. Purpose: To replace the interconnect board in a Sievers 500 RL TOC Analyzer.
2. Scope: This procedure applies to all current Sievers 500 RL Analyzer configurations.
3. Safety: This procedure requires access to electrical components of the Analyzer. Be sure to follow
ESD safety precautions, as instructed. This procedure should be performed by personnel
skilled in the maintenance of electromechanical instruments.
4. Materials:
• Interconnect board replacement kit
• Phillips screwdriver
5. Procedure:
5.1 If the Analyzer is taking measurements, press the Stop Analysis button.
5.2 Insert a USB flash memory drive into the port labeled USB on the side of the Analyzer and back up the
current Analyzer settings (Maintenance →Advanced →USB I/O →Save System). For more
information, see the section called “Saving System Settings” in the Analyzer’s
Operation and
Maintenance Manual
.
5.3 Remove the USB flash memory drive from the USB port and store it in a safe place.
5.4 Turn off power to the Analyzer. Also shut off the circuit breaker for the Analyzer.
5.5 Disable the flow of water to the Analyzer.
5.6 Open the Analyzer door.
5.7 Put on the ESD strap and attach the alligator clip to a metal component of the Analyzer.
5.8 Remove the system board.
5.8.1 Press down on the silver buttons on each side of the system board to release the locking pins
(see Figure 1).
5.8.2 Immediately in front of the pins are the board ejectors. Using your thumbs, simultaneously push
the ejectors out, toward the board guides. This will cause the board to begin to come forward.
5.8.3 Slide the board out of the guides and then out of the Analyzer.

GE Analytical Instruments, Inc. ©2005H Page 2 of 4 DIN 74740 Rev. A
Kit, Interconnect Board Repl., 500
Figure 1 The 500 RL’s Electronics Boards
5.9 Remove the I/O board
5.9.1 Disconnect the UV lamp power connector from the I/O board (see Figure 2).
Figure 2 The UV Power Connector
5.9.2 If there is wiring connected to the terminal blocks on the I/O board, remove the terminal blocks.
Grasp each terminal block firmly and pull it straight out from the connector.
5.9.3 Press down on the silver buttons on each side of the I/O board to release the locking pins (see
Figure 1).
5.9.4 Immediately in front of the pins are the board ejectors. Using your thumbs, simultaneously push
the ejectors out, toward the board guides. This will cause the board to begin to come forward.
5.9.5 Slide the board out of the guides and then out of the Analyzer.

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.

GE Analytical Instruments, Inc. ©2005H Page 4 of 4 DIN 74740 Rev. A
Kit, Interconnect Board Repl., 500
5.12 Close the Analyzer door.
5.13 Restore power to the Analyzer.
5.14 Return the Analyzer to normal operation.
*Trademark of General Electric Company; may be registered in one or more countries.