Module Replacement R&S FSP
1164.4556.82 3.18 E-1
Replacing the Lithium Battery on the Front Module Controller
(See chapter 5, spare parts list, item 775, and explosion drawings 1164.4391, 1164.4404.)
The lithium battery is accommodated on the front module controller board behind the front panel.
CAUTION
Lithium batteries must not be exposed to high temperatures or fire.
Keep away from children.
If the battery is replaced improperly, there is danger of explosion. Only
replace the battery by R&S type (see spare parts list, item 775).
Lithium batteries are hazardous waste and must be disposed of in dedicated
containers.
Do not short-circuit the battery!
Opening the Instrument and Removing the Front Panel
Switch off the instrument and pull the mains plug.
Unscrew the four screws (430) of the front handles on both sides and take off the front handles.
Remove the volume control knob (Option R&S FSP-B3), if present, by pulling it off.
Pull off the labelling panel (270) towards the front.
Unscrew each two countersunk screws (610) in the front frame at the top and at the bottom.
Remove the front panel with keyboard and display (600, 620, 630, 640, 650, 660) to the front and
rotate it to the top of the instrument
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