F6000 Family of Power System Simulators User Guide
72A-1589 Rev. C 02/01 7-13
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Communications Board
The communications board supports the input and output terminals on
the right side of the front panel. To replace the communications board,
first remove the instrument front panel, but do not disconnect the leads
from the circuit breaker on the left side of the panel.
To remove the instrument front panel:
1. Remove the 12 hex-head screws from the front panel.
2. Disconnect W2, W3, W4, W5, W6, and W7 from the Logic I/O
board, CPU board, and Analog I/O board.
3. With fingers resting on the inside surface of the front panel, grasp the
top of the black instrument frame.
4. Press the front panel out from the frame.
The front panel tilts forward and stops at about a 30° angle
(Figure 7.4 on page 7-6).
N
OTE
A High Current Interface connects the lower part of the Output
Terminal board to the motherboard. Carefully work this connection
loose as the front panel tilts away from the chassis frame.
5. Gently lift the front panel up and away from the bottom of the
instrument.
6. Lay the front panel face down on the table in front of the instrument
(Figure 7.5 on page 7-7).
7. Disconnect wires W8 and W18 from the Output Terminal board.
8. Disconnect wires W2, W6, and W7 from the communications board
and set them aside for use with the new front panel (Figure 7.6 on
page 7-8).
The communications board is ready to be removed (Figure 7.9 on
page 7-14).
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