Marantz SD1010 - Page 13

6.2 TAPE SPEED ADJUSTMENT
SET UP
1.
Power
voltage
:-
50
or
60
Hz
AC
voltage
rated
for
the unit to be used in a market country.
2.
Output
terminal:-
LINE
OUTPUT.
3. Test tape used:- MTT-111 (3kHz Tone) at 1-7/8
IPS.
MTT-111SP at 3-3/4 IPS.
. Unit position:- Vertical.
PROCEDURES
1.
For
1-7/8
ips,
play
the
mid
portion
of
the
test
tape
MTT-111
back.
Adjust
the
tape
speed
adjusting
variable
resistor
inside
the
motor
for
2990
to
3010
Hz
counter
indication.
2.
For
3-3/4
ips,
play
the
mid
portion
of
the
test
tape
MTT-111SP
back.
Adjust
R471
for
2990
to
3010
Hz
counter
indication.
FREQUENCY
COUNTER
TONE: 3 kHz
CAUTIONS
1.
For
adjustment,
the
tape
deck
should
be
set
up
in
the
normal
operating
condition.
2.
Do
not
adjust
the
variable
resistor
more
turns
than
needed.
3,
Do
not
proceed
with
adjustment
after
the
tape
deck
temperature
has
changed.
4,
\f
a
strong
shock
or
similar
vibration
is
applied
to
the
tape
deck
after
adjustment,
make
certain
that
the
measured
tape
speed
had
not
changed.
5.
If
the
tape
speed
deviation
occurs,
perform
the
adjustment
again.
6.
Be
careful
that
the
counter
may
indicate
a
wrong
value
because
of
too
low
counter
input
level.
7,
Before
adjustment,
allow
for
30
seconds
or
more
after depressing of the PLAY pushbutton.
NOTE:
Be
sure
to
carry
out
the
1-7/8
ips
tape
speed
adjustment
for
first.
12
6.3 METER ADJUSTMENT
SET UP
1. Power voltage:- 50 or 60 Hz AC voltage rated for
the unit to be used in a market country. :
2. TAPE SELECTOR switch position:- NORMAL
3. Input terminal:- Dolby IC (Q111) Pin 3.
4. Tape Speed:- 1-7/8 ips.
PROCEDURES
1. Connect a 1 kHz, —60 dBV input signal to the MIC
terminal. Set up the tape deck for the recording
mode of operation.
. Adjust the RECORD LEVEL control for 580 mV
output level at monitor out of the Q111 Pin 3
terminal.
3.
* For SD1010 & SD1020
Adjust R189 and R289 (5 kQ each) until the VU
meter pointer deflects to the +2dB (Dolby Point)
on the VU meter.
* For SD3020
Adjust R189 and R289 (5 kQ each) for +2dB LED
meter reading.
Mode: Record
AF OSC
TONE: 1 kHz,
DOLBY IC (Q111)
PIN 3