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. Place control switch in
proper position
1. Power cord not plugged in
2. Power off at AC source
3. AC power inlet fuse blown or
faulty
4. Control switch in the wrong
position
No sound
(‘on’ LED not illuminated)
POSSIBLE SOLUTION
POSSIBLE CAUSE
PROBLEM
** Note
:
If 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. Do not let any liquid enter the amplifier through the vents in
the top cover. You may clean the connectors on the back panel with isopropyl alcohol
annually.
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P/N 13007 Rev.0004
