Anthem Audio PRE 1L Operating Manual - page 10
Muting the Pre 1L is achieved by placing the Mute/Operate
button (H) in the MUTE position (button depressed); the
output signal is then cut off. To resume listening, place the
button in the OPERATE position (not depressed).
T R O U B L E S H O O T I N G
If at any time the Pre 1L fails to work properly, consult this
checklist:
1. Check that the AC Detachable Power Cord is plugged into
the Pre 1L Detachable Power Cord Socket (I) and is connect-
ed to a live 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, wait 5 minutes,
remove the chassis covers from the Pre 1L and check that:
• A “slow-blo” fuse, with a rating of 0.5 Amp/250 V (0.25
Amp/250 V for European and Asian versions), is installed on
the circuit board under the soft plastic cover (see figure 5).
• 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 (0.5 Amp/250V fast-blo for 100
to 120 volt countries and .25 Amp/250V fast-blo for 220 to
240 volt countries). (See Figure 5.)
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 Pre 1L and will also void the
warranty. In addition, your continued protection from risk of
fire or shock would be seriously compromised.
• Ensure the tubes are plugged firmly into their sockets as
described in “INSERTION OF THE TUBES”.
4. Be sure the rest of the system is functioning properly (i.e.
source unit, power amplifiers, cables and connections, etc.).
5. With tubes, fuses, covers and power cords in place, check
that the LED (F) is lit. If all of the above troubleshooting steps
have been followed and the LED is not lit, contact your dealer
or distributor for assistance.
Figure 4 - Alignment of the AC power connector and detachable cord.
Figure 5 - Fuse location.
WARNING-DISCONNECT THE AC
DETACHABLE POWER CORD FROM THE
Pre 1L AND WAIT 5 MINUTES BEFORE
REMOVING COVER, TUBES OR FUSE.