Adcom GFP-345 - Manual (Page 8)

Most electronic or electrical devices state the maximum power drawn by the device on a plate, or label, on the rear
panel of the unit, near the AC line cord which supplies power to the unit. If is a good idea to check these
requirements before plugging an amplifier into either the UNSWITCHED
outlet or the SWITCHED o outlet.
Most large-power amplifiers should be plugged directly into an AC wall outlet.
NOTE
AC FUSE O
The AC line fuse protects the circuits of the GFP-345. This fuse should be replaced only with a fuse of the same current
value, type and rating as that supplied with the preamplifier. The correct fuse type, current value and rating is printed
directly above the AC FUSE socket on the rear panel of the GFP-345, Replacements with fuses of higher value and/
or different rating and/or type will not protect the GFP-345 circuits, may void the Warranty and may cause a fire hazard.
NOTE
Before checking or replacing a blown fuse, make certain you UNPLUG THE POWER COR D FROM THE AC WALL
OUTLET TO PREVENT POSSIBLE ELECTRICAL SHOCK.
POWER ©SOCKET
The POWER © socket permits connection of an AC cord and plug, suitableto your particular area or country, to provide
AC power to operate the GFP-345 circuits and energize the SWITCHED © and UNSWITCHED ® outlets. The AC tine
cord should be plugged into any standard wall outlet providing the correct operating voltage. To determine the voltage
for which the GFP-345 has been set, check the voltage listing on the upper right-hand corner of the GFP-345’s rear panel.
NOTE
The GFP-345's POWER © socket is “polarized" and its lower, center pin is grounded as required by many
standards and safety organizations. If at all possible, make certain that there is a matching, 3-prong plug on the
end of the AC cord so that the chassis ofthe GFP-345 will be grounded to “earth”. If a 3-prong plug is not available
in your area, or in your specific circumstances, experiment with the “phasing", or reversing, of the AC plug to
achieve minimal hum in your system and minimal noise as well.
CONTROLLING THE GFP-345
Please refer to the diagram of the front panel of the GFP-345 to identify all the controls and their functions.
AC POWER SWITCH © ©
The "rocker” AC power switch © controls power to the circuits ofthe GFP-345 and to the SWITCHED © outlet on the
rear panel of the GFP-345. Wheneverthe GFP-345 is energized, the red LED© wiii glow. Push the top of the rockerswitch
to energize the GFP-345. Push the bottom of the rocker switch to turn the unit off.