Teac A-3300 - Input Level Set

MONITOR PERFORMANCE
MINIMUM INPUT LEVEL
Line Input
With output controls at specified output level
1. Connect an AF oscillator to the LINE IN jacks.
2. Apply a 400 Hz signal at -18 dB.
3.
Place
the
MONITOR
switches
FRONT
and
REAR
in
the
source
position
and
turn
the
LINE
controls
fully
clockwise.
4.
Adjust
VR
301/304
to
obtain
a
specified
output
level
of
-8
dB
at
OUTPUT
jacks.
Mic Input
5.
After
adjusting
VR
301/304,
apply
a
400
Hz
signal
at
-70
-
dB
to
the
MIC
IN
jacks.
6. Rotate the MIC controls fully clockwise.
7.
The
output
should
be
-8 dB
(specified
output
level).
SPECIFIED INPUT LEVEL SET
With output controls at specified output level
8. Apply a 400 Hz signal at -8 dB to the LINE IN jacks.
9. Adjust the line controls for -8 dB at the OUTPUT jacks.
NOTE
Do not disturb the specified input level
position of these controls. until the re-
maining checks and adjustments are com-
pleted.
The difference between the channels must
not exceed +2 dB as indicated on the level
meter. If they are not within limits,
check the amplifier gain and the LINE con-
trol settings.
VU METER CALIBRATION —RECORD-
10. With the same 400 Hz signal at -8 dB applied and the MONITOR
switches FRONT and REAR in SOURCE, adjust VR 303/306 for O VU
on the VU meters.