Operation Manual

NO SOUND
LEDs LIGHT
Check amp controls, check
for signal from instrument
NO SOUND
Listen for hum
SOUND OK
NO HUM
Check speaker
SPEAKER OK
SOUND OK
HUM
Unplug instrument,
touch tip of cable
NO CHANGE LOUD HUM
Replace cable Check bass pickup
NO CHANGE
SOUND OK
SEE BELOW
LEDs DON’T LIGHT
Check AC outlet
OUTLET OK NO POWER
Check power cord,
fuse, power switch
Check house fusebox
or circuit breaker
OK
NO SOUND
SOUND OK
Check instrument, cables
POOR SOUND
Check speaker(s)
SPEAKER(S) OK,
POOR SOUND
SPEAKER(S)
DEFECTIVE
Replace speaker(s)
SOUND OK
POOR SOUND
SEE BELOW
SVT-3 PRO Bass Guitar Amplifier
12
Rack Mounting
When mounting the SVT-3 PRO into a rack, the four bottom feet should be removed
to maintain the two rack space height of the amplifier. Be sure to keep the feet and their
attachment bolts for future use. If the feet are reinstalled, never use screws which will
protrude farther into the amplifier than the original hardware.
The rack must be a high quality enclosure capable of securely supporting the weight
of the amplifier. Tighten the mounting screws securely through the amplifier’s face plate,
into the rack rails. Check the rack and mounting screws occasionally to ensure a continually
safe and secure installation.
A 1/4–20 threaded insert is provided on the rear of the amplifier for connection to an
additional support bracket. It is highly recommended that this additional support be used
when rack mounting the amplifier. It must not protrude more than 1/2" into the amplifier.
Troubleshooting
In the unlikely event that your SVT-3 PRO should malfunction, take a few minutes to
troubleshoot it before you call for service. You can save yourself time and money by doing
it yourself, and often the cure for the problem is something quite simple.
If the problem isn’t covered above, or if the steps lead you here, then contact your
Ampeg dealer for service information. Also, you should refer the amp for servicing if it
gets dropped, has liquid spilled into it, or sustains damage to its power cord.