<8. Maintenance>
8-5
IM 01C25W05-01EN
Slide switch
DRS cable
connection port
Integral indicator
Mounting screw
Amplifier cover
Zero-
adjustment
screw
Conduit
connection
Zero-adjustment
screw pin
Press forward
Output terminal cable
DRS output cable
CPU
assembly
DRS cable
connection port
Amplifier cover
CPU assembly
F0803.ai
Low pressure side transmitter (slave)
High pressure side transmitter (master)
Figure 8.3
Removing and Attaching LCD Board
Assembly and CPU Assembly
8.4.2 Replacing the CPU Board Assembly
This subsection describes the procedure for
replacing the CPU assembly. (See Figure 8.3.)
■ Removing the CPU Assembly
1. Remove the cover. If an integral indicator is
mounted, refer to subsection 8.4.1 and remove
the indicator.
2. Turn the zero-adjustment screw to the position
as shown in Figure 8.3.
3. Disconnect the output terminal cable (cable
with brown connector at the end). When doing
this, lightly press the side of the CPU assembly
connector and pull the cable connector to
disengage. (See the upper left of Figure 8.3.)
4. Disconnect the DRS output cable (cable with
white connector at the end).
5. Use a socket driver (width across flats, 5.5mm)
to loosen the two bosses.
6. Carefully pull the CPU assembly straight
forward to remove it.
7. Disconnect the flat cable (cable with white
connector at the end) that connects the CPU
assembly and the capsule.
NOTE
Be careful not to apply excessive force to the
CPU assembly when removing it.
■ Mounting the CPU Assembly
1. Connect the flat cable (with white connector)
between the CPU assembly and the capsule.
2. Connect the output terminal cable (with brown
connector).
NOTE
Make certain that the cables do not get pinched
between the case and the edge of the CPU
assembly.
3. Align and engage the zero-adjustment screw
pin with the groove on the bracket on the CPU
assembly. Then insert the CPU board assembly
straight onto the post in the amplifier case.
4. Tighten the two bosses. If the transmitter is
equipped with an integral indicator, refer to
subsection 8.4.1 to mount the indicator.
IMPORTANT
Confirm that the zero-adjustment screw pin is
placed properly in the groove on the bracket prior
to tightening the two bosses. If it is not, the zero-
adjustment mechanism will be damaged.
5. Replace the cover.
Содержание DPharp EJXC40A
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