Specifications

8
If the Processor 3 is not functioning properly, please check each
of the following:
1. Check that the Power Supply Umbilical Cord (T) is connected
correctly to the Power Supply Input Socket (E). Next, ensure that
the AC Detachable Power Cord is plugged into the Power
Supply’s Detachable Power Cord Socket (S) and is connected to
a live source of AC power. For instance, if using a power bar,
check that the bar is turned on.
2. Be sure that the Power Switch (R) on the front of the Processor
3 Power Supply chassis is in the “ON” position.
3. Check that the proper input has been selected with the
Selector Buttons (A) on the Processor 3 chassis.
4. Ensure that the processor is not in MUTE or STANDBY mode,
or still in the 20 second warm-up/turn-on cycle.
5. Check that the AC Line Fuse inside the Power Supply chassis
is good. Be sure to first unplug the AC Detachable Power Cord
from the Power Supply before removing chassis covers to check
the fuse. For fuse location see figure 9. To remove the fuse, sim-
ply unscrew the fuse holder and remove the fuse. If the fuse has
blown, the thin metal conductor will have melted and the glass may
appear “smoked”. If the fuse has blown, replace with a fuse of the
same type and rating (See specifications for fuse ratings).
6 . Check to be sure that all the tubes are correctly and firmly seat-
ed in their tube sockets and that all nine contact pins are inserted
in each socket (i.e. no pins are bent over). Verify that an orange
glow is visible from inside of each tube when the unit is on.
7 . If you are still experiencing any difficulty with your Processor 3,
contact your dealer or distributor for assistance.
REPLACEMENT OF THE TUBES
Sonic Frontiers strongly discourages non-factory replacement of
the tubes. The tubes supplied are measured, selected, and
matched in balanced pairs - channel to channel and triode
section to triode section - for optimum performance.
Problems arising from non-SFI supplied tubes will not be covered
under warranty.
If replacement tubes are needed, desired or required, contact
Sonic Frontiers for assistance.
TROUBLE SHOOTING
Figure 9 - The Fuse in the Processor 3 is located in the right
rear corner of the power supply chassis.
Fuse
W A R N I N G
D I S C O N N E C T the AC Detachable Power Cord
from the Processor 3 Power Supply before
beginning troubleshooting.
Figure 10 - To remove the fuse, simply unscrew the fuse holder
and take out the fuse.