Oldfield 5922, Руководство пользователя

Страница: 9 / 13

Rear Panel: Controls And Features
(Reference the rear panel viewing left to right)
Power Cord:
Connect to electrical main supply. Your amplifier is designed to operate on
1 20v AC. (Not on all models. Some models use a fixed power cord.)
Fuse:
Replace only with a 3A slo-blo fuse. Never install a larger fuse than specified.
Failure to install the properly rated fuse could result in damage to the amplifier. Fuses
provide a critical safeguard for the amplifier and a blown fuse could be an indication of a
much bigger problem either with the amplifier or the power source. See a service
technician if the amplifier is repeatedly blowing fuses.
Power Level:
Control for the Power Scaling feature. When rotated fully clockwise the
amplifier will produce the full rated output. As the control is rotated counter-clockwise the
input voltage to the amplifier will be reduced and the amplifier will produce less output.
There is a limit as to how practical the power can be reduced before the tone will start to
fall apart.
Rectifier Selection Switch:
Your amplifier has the ability to operate on either a tube
rectifier or from a solid state rectifier. The Rectifier Selection Switch determines the mode
of operation. The tube rectifier will be a bit warmer with a softer feel while the solid state
will provide the player with a bit more volume and edge.
The amp must be in Standby
mode before changing the position of this switch.
Main And External Speaker Jacks
: Connect a speaker to either of these jacks. Both
jacks can be used at the same time to drive multiple cabinets. Do not exceed a 4ohm
load.
IMPORTANT: A speaker load must be connected to the amplifier at all times during
amplifier operation. Failure to do so will result in output transformer failure very
quickly and will not be covered under warranty. It is a good practice to get in the
habit of listening for normal amp noise as soon as the standby switch is moved into
the play position. If no noise is heard the amp should be turned off immediately
and speaker connections checked.
SPEAKER IMPEDENCE SELCTOR:
Position the selector switch to match the amplifier
speaker load. The amplifier is capable of handling a 4, 8, or 1 6 ohm load.
Page 9
Oldfield Amplifiers