Installation and Commissioning
8-8 7SJ62 Manual
C53000-G1140-C121-1
− #1 Phillips screwdriver,
− 4.5 mm socket or nut driver.
o Unfasten the screw-posts of the D-subminiature connector on the back panel at loca-
tion “A”. This activity does not apply if the device is for surface mounting.
o If the device has more communication interfaces at locations “B” and/or “C” on the
rear, the screws located diagonally to the interfaces must be removed. This activity is
not necessary if the device is for surface-mounting.
o Remove the four corner caps on the front cover and loosen the screws that become
accessible.
o Carefully pull off the front cover. The front cover is connected to the CPU board with
a short ribbon-cable.
o At one end, disconnect the ribbon-cable between the front cover and the CPU board.
To disconnect the cable, push up the top latch of the plug connector and push down
the bottom latch of the plug connector. Carefully set aside the front cover.
The locations of the printed circuit boards are shown in Figure 8-4.
o Disconnect the ribbon-cables between the CPU board (å) and the I/O board ().
o Remove the boards and set them on the grounded mat to protect them from ESD dam-
age. A greater effort is required to withdraw the CPU board, especially in versions of
the device for surface-mounting, because of the communication connectors.
o Check the jumpers according to Figures 8-5 to 8-9, and Tables 8-2 to 8-6. Change or
remove the jumpers as necessary.
Caution!
Electrostatic discharges through the connections of the components, wiring, plugs,
and jumpers must be avoided. Wearing a grounded wrist strap is preferred. Otherwise,
first touch a grounded metal part.
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