Yaesu FL-2000B, Instruction Manual

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Unpacking
Carefully remove FL-2000B and tubes from their packing cartons and examine them
for any visible shipping damage, check the control knobs and switches for complete
freedom of action. Should any damage be apparent, notify the delivering carrier
immediately stating the nature of the damage in detail.
Tube Installation.
Tubes can be installed after removing the top cover (see SERVICING). First, check
to see if the tube holders at the tube sockets are loose enough to install tubes. If not,
loosen them. Notice the mark pin of the tube base comes to the right of the socket
for correct insertion into the socket.
Push the tubes straight in to insert them and fasten the tube holders. Insert the plate
caps on the top of the tubes. Check to make sure that the plastic choke coil has
enough clearance from the surrounding parts to avoid electrical short.
After replacing the top shield of the tube compartment and the top cover, the
amplifier can be connected for operation.
In general, care should be taken to insure that enough space is allowed around the
amplifier cabinet to permit adequate air circulation within the linear amplifier. Do not
cover the top of the FL-2000B with books, papers or other equipment. Do not insert
anything under the bottom of the FL-2000B or overheating may result.
POWER REQUIREMENT
The FL-2000B has a built-in power supply which can be operated from either 100,
117 or 220 volts AC 50-60 cps. The FL-2000B is shipped from the factory
connected to operate on 220 volts AC.
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