STUDER REVOX PR99 Bedienungsanleitung Seite 40

4
5
6
l
Adjustment
of VU meter and
PEAK INDICATOR
LED
1.
Calibrate input circuit.
2.
Adjust potentiometer
METER CAL
CH1
lCH2 (aI the under-
side
of the machine, externally accessible) so that
a
0VU
reading
is
obtained
at
the instrument.
3
lncrease input
voltage by 6dB (to 155V
at output MONI-
TOR).
Adjust potentiometer
PEAK INDICATOR
CH:'l
I
Cl2
in
such
a
manner that the
LEDs
of
the
VU meter just start
to light
up
Decrease input
level
to operating
level,
Connect millivoltmeter
to
LINE OUTPUT
(terminate output
with
600 ohms.)
Adjust
LINE OUTPUT LEVEL
potentiometer
(underside of
machine) to desired operating
level.
Azimuth adjustment of reproduce
head
1
.
Mounttesttape. Forwardtapetoazimuth
adjustmentsection
(10 kHz).
2
Connect millivoltmeter to
output LINE OUTPUT CHl
I CN2.
3.
Depress
PLAY
key and adlust for maximum output voltage
with
setscrew
(P).
Adjustment of reproduce level from test tape
1.
Connect AF millivoltmeter
to
LINE OUTPUT
CH1.
2.
Advance
test tape to level tone section
(NAB
:
operating
le-
vel,
DIN i
CCIR
:
Peak Level).
3.
Start machine
in
reproduce
mode.
4.
Adjust potentiometer
REPR
LEVEL CH1 to the desired oper-
ating-/ peak
level.
5.
Connect AF millivoltmeter
to
LINE OUTPUT CH2
6.
Adjust potentiometer
REPR LEVEL CH2
to
be
desired oper-
ating
Ievel.
Checking of
frequency
response
with test tape
1.
Advance test tape to the frequency response
section.
2.
Connect AF millivoltmeter to
LINE OUTPUT
CH1
and
CH2.
3.
Start machine in reproduce mode and check frequency
re-
sponse
relative
to
1000 Hz
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