Decware SE84UFO3 Owner's Manual page 13

OWNERS MANUAL for Model SE84UFO3
!
Troubleshoo?ng
SYMPTOM CAUSES
Popping or Spitting Noisy tube
noise
Wifi router or bridge
nearby
AC fuse blows Line voltage surge
Rectifier Tube Arced
on initial startup
Fuse is too small
One Channel stops No signal to that
working channel
Speaker cable came
unhooked
Output tube failed
Channel imbalance Output tubes no
longer match
Input tube sections
no longer match
Speaker HI/LO
impedance switches
are not set the
same.
PAGE 13
REMEDIES
Replace noisy tube
Locate away from audio
components
Replace fuse
If it continues, replace
rectifier tube and fuse.
Install correct amperage
fuse. If amperage IS
correct and fuse blows,
use a SLOW BLO fuse
of the same amperage.
Take the cable from the
channel that works and
put it into the channel
that stopped working. If
it starts working, the
amp is fine, but you
have either a bad cable
or problem with your
preamp or source
component.
Reinstall speaker cable.
Replace output tube.
Replace output tubes
with a matched pair.
Replace input tube with
a new input tube that
has matched sections.
Adjust the HI/LO
switches the same for
each channel.