Reflex Lexicon - Listening Tests

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Reflex
Service Manual
Setup
1.
Connect
stereo
headphones
to
the Reflex
rear panel
Left Output
(Phones).
2. Using
the 2 audio
cables forthe sine
wave
audio
oscillator,
connect the
left
and
right
inputs of
Reflex
to
the
Y
connector and connect
the
Y
connector
to
the
output
of
the sine
wave
audio oscillator.
3.
Set
the Reflex
front
panel
OUTPUT
control
fully
counterclockwise.
4.
Set
the
Reflex
front
panel
INPUT
and
MIX
controls
fully
clockwise.
5.
Power
on Reflex,
and
power
on
the
low
distortion sine wave audio
oscillator.
6.
Input
a
220Hz
sine
wave
at -SOdBV
to
Reflex.
7. Turn
the
REGISTER/PRESET
knob
to select 1 LARGE HALL. The
display should
read: 1.
8.
Put
on the headphones.
9.
Set
OUTPUT
to
a
comfortable
listening level.
Smooth Pots
1.
Individually
sweep the INPUT,
MIX
and OUTPUT
controls overtheir
entire
range.
2. Verify
that
no
pops, clicks or
scratchiness
are heard
when turning
the
controls.
Quick
Listen
1
.
Set the
INPUT
and MIX
controls fully
clockwise.
2.
Set
OUTPUT
to a comfortable
listening level.
3. Vary
the frequency on
the
oscillator.
4.
Verify
that no
pops, clicks,
buzz,
or other
audio
artifacts are
heard.
Shock
Test
1
. Lift
each
end of
Reflex
4"
off
the bench and
drop it.
2.
Verify
that no audio,
display,
or LED
intermittents
are
caused by
this
action.
NOTE:
TO AVOID
DAMAGE
TO THE UNIT, KEEP
ONE CORNER
OF
THE UNIT
TOUCHING
THE BENCH AT ALL TIMES.
Headroom LED
1
.
Disconnect the
headphones.
2.
Set
both
the INPUT
and
OUTPUT
controls
fully counterclockwise.
3.
Increase
the oscillator level
to
-35dBV.
4.
Slowly
increase INPUT
over
its entire
range.
5. Verify
that the headroom LED,
lights green,
then red during
the clockwise
rotation
of the
knob.
6.
Remove
audio cables and
power cable from Reflex.
Factory
Settings
1 . Set all front
panel
knobs fully counterclockwise.
2.
Set the
REGISTER/PRESET
and
VALUE knobs
to
their
6:00
positions.
Performance
Verification
Listening Tests
3-5