TROUBLESHOOTING
1. Replace blown rail fuse inside
amplifier
1. Blown rail fuse
Channel sounds distorted
and low in output
1. Check all connectors and repair
as necessary.
1. Poor ground connection in inter-
connect cables.
Loud hum or buzz on one
or more channels
1. Check connections making sure
that cables are connected (+)
to (+) and (-) to (-)
1. Speakers connected out of
phase
Sound lacks direction,
bass weak
1. Tighten, repair or replace cable
2. Tighten, repair or replace cable
3. Tighten, repair or replace cable
4. Check all switch settings
5. Check all speaker fuses
6. Re-adjust level controls
1. Speaker leads loose or faulty.
2. Line stage to amp cables loose
or faulty.
3. Source to line stage cables
loose or faulty.
4. Line stage or source not
correctly selected.
5. Speaker fuse blown
6. Level controls adjusted
improperly
No sound on some or all
selected channels (‘on’
LED illuminated
1. Reconnect power cord
2. Check AC switch or fuse
3. Check for shorts or
overloading
4. Supply Control IN with a 5-24 Volt
supply. (Page 5)
1. Power cord not plugged in
2. Power off at AC source
3. AC power inlet fuse blown or
faulty
4. Control Input not activated.
No sound
(‘on’ LED not illuminated)
POSSIBLE SOLUTION
POSSIBLE CAUSE
PROBLEM
** Note:
If the unit continues to blow power inlet fuses,
DO NOT USE A
HEAVIER FUSE!!
,
have it serviced
.
CARE AND CLEANING
Under normal use, the amplifier will not require any special care. Over time you may wish
to clean the exterior of the unit by wiping it with a damp cloth to remove any dirt or dust
that accumulates on it. Unplug the amplifier and be sure that it has completely powered
down before you apply any damp cloth. Do not let any liquid enter the amplifier through
the vents in the top cover.
REMEMBER, LIQUIDS CONDUCT ELECTRICITY!!!
You may
clean the connectors on the back panel with isopropyl alcohol annually.
Page 10
P/N 13009 Rev.0102
