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10. Connect the two connectors CN301 and CN302 to the
connectors on the rear panel, then insert the harness
between the upper fan motor and the lower fan motor.
11. Pull the harness toward the arrow A, then hold it with
the ferrite beads.
CN301
CN302
A
Ferrite beads
12. Install the fan cover on the rear panel with the four
screws.
13. Apply locking compound to the four screws securing
the fan cover.
2-5-3. Backup Battery (only DME-3000)
To store a setup data and a real-time clock, Ni-Cd battery
is mounted on the CPU-114 board in DME-3000.
To charge the Ni-Cd battery sufficiently, turn on the power
of DME-3000 for about ten hours. The sufficiently
charged Ni-Cd battery enables data to be stored for about
one week.
A Ni-Cd battery is not installed in DME-7000.
Fan motor
n
Harness
The life of a Ni-Cd battery is about ten years. Replace the
Ni-Cd battery after a lapse of ten years since this unit is
installed or the battery is last replaced. (For the replace-
Fan motor
ment procedure of the battery, refer to the Maintenance
Manual Part 2.)
2-5-4. Capacitor for Data Backup
(only DME-7000)
To store a setup data and a real-time clock, the large
storage capacitor (4 Farad) is mounted on the CPU-196
board in DME-7000.
To charge the large storage capacitor sufficiently, turn on
the power of DME-7000 for about one hour. The suffi-
ciently charged large storage capacitor enables data to be
stored for about one week.
A large storage capacitor is not installed in DME-3000.
2-5. Replacement of Main Parts
2-5 (E)
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