Yaesu FL-2000B, Instruction Manual

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Removing Shield Cover
After removing the top cover, the shield cover of the PA compartment can be
removed by taking out two screws on the shield cover. The safety lock shorts out the
charge condensed in the capacitor.
Removing the Cabinet
After removing six screws on the front end and two in the bottom of the cabinet, the
cabinet can be slid out backwards from the chassis and panel assembly.
Tube Replacement
If it becomes necessary to replace the tubes in the FL-2000B, the same
manufacturer brand should be used.
Trouble Shooting
During long periods of operation, it is quite possible that some problem will arise
which cannot be cured by tube substitution. If this occurs, it is recommended that
you either return it to your dealer or write us in detail.
Input Coil Alignment
The input coils are adjusted at the factory for the center of each band and are broad
enough to cover the entire band. However, if the tubes are replaced with a brand
other than originally supplied, the input coils may have to be realigned. The
alignment is done with a 50 ohm SWR meter inserted between the exciter output and
the FL-2000B's RF input coax jack. First disconnect the FL-2000B from the power
line, remove the top and bottom covers and disconnect the wiring from the high
voltage transformer secondary terminals.
Recover the top cover. The amplifier should be connected to the exciter as for
normal operation with the exception of the SWR meter in the input line. Preset the
controls as follows:
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