Lithium Battery Replacement - Yaesu FTDX-9000D Operation Manual

U
The memories for the ATU are backed up by a common Lithium backup battery (type CR2032 or equivalent). After two or
more years of heavy use, you may notice that the tuner memories are not being maintained, and that you have to re-tune
when returning to a frequency on which you had previously stored tuning data.
In this case, please replace the ATU Backup Battery using the following procedure:
1. Turn the transceiver's main power switch Off.
2. Unplug the AC cable from the rear panel's (~AC IN)
jack.
3. Referring to Figure 1, remove the eight screws (
from the side of the transceiver, along with the six
screws ( ) affixing the bottom case; remove the bot-
tom case.
4. Now remove the three screws affixing the top case,
and remove the top case (Figure 2).
5. Referring to Figure 3, remove the screws (
top left and top right that hold the front panel assem-
bly in place, and loosen the two screws (
bottom left and bottom right, so they can hold the front
panel as it is folded forward.
6. Refer to Figure 4, and slide the front panel diagonally
upward and outward, then fold the front panel for-
ward to expose the Control Unit behind it.
7. Locate the Lithium battery on the left side of the Con-
trol Unit (Figure 5)
8. Follow the guidelines in Figure 6, and remove the old
battery, replacing it with a new one of the identical type.
9. Restore the front panel to its original position, and
replace the two screws (one from each side, near the
top) and tighten the two lower screws that were loos-
ened in step 5. Replace the top and bottom covers, re-
installing all the screws removed in steps 3 and 4.
Replace the eight screws removed from the sides of
the transceiver.
10. Replace the top and bottom covers, re-installing all
the screws removed in steps 3 and 4.
11. ATU Backup Battery replacement is now complete.
Quick Point
When the ATU Backup Battery is replaced, all tuner memo-
ries will be erased, and new sets of tuning data will have to
be stored.
Note
H Use care in the handling and storage of the Lithium
battery. It is small, and presents a choking hazard to
small children; therefore keep such batteries out of
the reach of children at all times. Do not dispose of
Lithium batteries in fire, and do not attempt to re-
charge them under any circumstances.
H When opening/closing the case, take care with your
screwdriver not to short out internal components, or
touch them in a way that will cause them to short out
against other components.
H The exhaustion of the ATU backup battery of the FT
9000D is a normal "wear and tear" situation, and
the loss of the backup voltage is not a "defect" or other
condition covered by the Limited Warranty on this
product. Accordingly, if you do not feel capable of
replacing the battery, and ask a service shop to do so
on your behalf, a service fee may apply.
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