Figure 7.2 - Disconnect Keypad Ribbon Cable From Processor Board; Figure 7.3 - Unlatch Boards From Carrier; Figure 7.4 - Remove The Standoffs - Watlow D8 Series User Manual

D8 Series User's Guide
Chapter 7: Troubleshooting and Reconfiguring
5. Unplug the front panel overlay ribbon cable from the connector on the processor board (the
bottom one in the stack of two boards).
Figure 7.2 — Disconnect Keypad Ribbon Cable from Processor Board
6. Pull back the arms that latch the two boards in the carrier at side with the ribbon cable and
rotate the boards out of the carrier as shown in Figure 7.3
Figure 7.3 — Unlatch Boards from Carrier
7. Remove the two plastic standoffs that connect the analog (top) board to the processor
(bottom) board and lift the analog board off the processor board.
Figure 7.4 — Remove the Standoffs
8. Locate the EPROM on the processor board. The EPROM is a 32-pin socketed chip that is
labeled with the model, version and checksum.
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