USER'S GUIDE____________________________________________________________________
110 _________________________________________________________________ M210482EN-D
2. Switch off the power with all three switches (F1, F2, and Battery).
For the location of the switches, see Figure 15 on page 40 and
Figure 16 on page 41.
WARNING
Disconnect the power cable from connector J2 before continuing.
3. Detach the coaxial cable (refer to number 3 in Figure 22 on page
104) from the receiver. T
hen detach the receiver ribbon cable (refer
to number 4 in Figure 22) from Ceilometer Engine Board CLE321.
4. To detach th
e receiver, loosen the receiver ring by turning it
downwards. If necessary, you can use a 2.5-mm Allen key as a
lever. Remove the receiver from the unit.
5. Place the new receiver to its place and tighten the receiver ring in
such a way that the labels of the receiver face the left wall of the
enclosure.
6. Connect the receiver ribbon cable to the CLE321 board and the
coaxial cable to the receiver.
7. Connect the power cable to connector J2.
8. Switch on the power with all three switches. Wait until the
Laser
on LED starts blinking at 2-second intervals. Ensure that all six
diagnostic LEDs light up after the self-test. Refer to Figure 26 on
page 111.
The ceilometer unit should now return to normal operation. Verify that
the unit is working properly and that there are no other failures with the
system. If other failures exist, separate troubleshooting may be necessary.
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