FAULT
FINDING
©
Cyrus
Audio
Ltd
Jun
2014
15
Cyrus
6
DAC,
Cyrus
8
DAC
service
manual
Issue
1
audio
channels
is
not
working,
there
may
be
a
fault
with
the
DAC
(IC801),
filter
IC
(IC802)
or
one
of
the
components
associated
with
these.
If
a
fault
is
found
from
these
tests,
the
next
step
recommended
is
to
check
the
power
supplies
to
the
plug
‐
in
daughter
PCB.
Remove
the
PCB
for
these
tests,
then
switch
on
the
amplifier
and
check
that
the
correct
voltages
are
supplied
at
the
PCB
connector
from
the
main
PCB.
If
the
voltages
measure
correctly,
then
the
fault
must
be
on
the
sub
PCB.
