Owner`s manual

To record from a source, place the Tape/Source Switch (C) in the
SOURCE position and commence recording. To play back a tape
recording, place the Tape Source Switch in the TAPE position.
Muting the SFL-1 Preamplifier is achieved by placing the
Mute/Operate Switch (G) in the MUTE position; the output sig-
nal is then cut off. To resume listening place the switch in the
OPERATE position.
The mono/stereo function is controlled by Mono/Stereo Switch
(F). When this switch is placed in the MONO position the left
and right stereo signal is combined and the SFL-1 will send an
identical mono signal to the left and right Main Outputs (L). In the
STEREO position, normal stereo playback is produced.
T R O U B L E S H O O T I N G
If at any time the SFL-1 Preamplifier fails to work properly, consult this
c h e c k l i s t :
1. Check that the AC Detachable Power Cord is plugged into the
SFL-1 Detachable Power Cord Socket (J) and is connected to a l i v e
source of AC power. For instance, if using a power bar, check that
the bar is turned on.
2. Ensure that all Input and Output connections are secure for
a proper electrical contact.
3. DISCONNECT THE AC POWER CORD from the SFL-1 and
check that:
• A “fast-blo” fuse, with a rating of .5 Amp/250 V (.25 Amp/250 V
for European and Asian versions), is installed in the cylindrical tube
next to the AC power socket.
• The AC power fuse is intact and has not blown. 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 rating (.5 Amp/250V fast-blo for 100 to 120 volt countries and
.25 Amp/250V fast-blo for 200 to 240 volt countries).
NOTE: Under no circumstances should you replace the AC power
fuse with one of a higher current rating! Doing so may cause further
damage to the SFL-1 and will also void the warranty. In addition, your
continued protection from risk of fire or shock would be seriously com-
p r o m i s e d .
4. DISCONNECT THE AC POWER CORD, wait 5 minutes, remove
the chassis cover and ensure the tube is plugged firmly into its socket
as described in “INSERTION OF THE TUBE” .
5. Be sure the rest of the system is functioning properly (i.e. source unit,
power amplifiers, cables and connections, etc.).
6. Check that both the front panel Power Indicator LED (E) is lighted
(glowing light green). If all of the above troubleshooting steps have
been followed and the LED is not lighted (remains dark green), contact
your dealer or distributor for assistance.
Figure 3 - Single-Ended RCA Input and Output connections made to the SFL-1 Preamplifier.