Revox C221

Rdy'ox
C221
CD
Player
Service Manual
4.2.6 Modulation
start
monitoring
lC
16 to lC23 and
the corresponding
components
monitor the
modulation
level when
the
auto cue
function is
active
and the CD
player
is
in
pause
mode.
lC18 compares
the modulation level with a
preset
reference
value.
With
DIP switches
(SW2)
on the converter board the
reference
value can
be adjusted
within the range of
-18
dB
to
-66
dB.
The reference
value
is factory
set
to
-54
dB.
Switch
position
table
(SW2)
for the reference threshold
dB
S5S7
-66
-60
-56.4
-54
-50.4
-48
-45
-42
-39
-36
-33
-30
-27
-24
-21
-18
on
on
on
on
on
on
on
OFF
OFF
on
on
on
OFF
on
OFF
OFF
on
on
on
on
on
on
on
on
on
OFF
OFF
on
on
on
OFF
OFF
on
on
on
on
on
OFF
OFF
on
on
on
OFF
on
OFF
on
on
OFF
on
on
on
OFF
OFF
on
on
on
OFF
on
OFF
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
OFF
OFF
on
on
OFF
on
on
on
on
on
on
on
on
on
on
on
on
on
OFF
OFF
OFF
on
OFF
OFF
on
OFF
on
OFF
on
OFF
on
on
on
on
on
on
on
OFF
on
OFF
on
on
on
OFF
on
on
on
on
on
on
on
on
on
The modulation start monitoring transmits the result
of
this
comparison
to the microprocessor
by
means
of the
M(O)DET
signal.
34