Marantz SD4000 - Playback Equalizer Adjustment; Playback Output Adjustment

6.3
PLAYBACK
EQUALIZER
ADJUSTMENT
SET UP
1.
Power
voltage:-
50
or
60
Hz
AC
voltage
rated
for
the unit to be used in a market country.
.
TAPE
SELECTOR
switch
position:-
NORMAL.
.
Load:-
Measuring
instrument
input
impedance.
. Output terminal:- LINE OUTPUT.
. Test tape used:- MTT-115C.
.
Tape
Speed
:-
1-7/8
IPS
(4.75
cm/sec).
PROCEDURES
1.
Play
the
test
tape
MTT-115C.
Let
the
315
Hz
signal
level
be
reference
as
O
dB.
2.
Adjust
R160
and
R260
(5
kQ
each)
for
10
kHz
frequency
response
of
0
to
+1
dB
in
reference
to
the
315
Hz
signal
level.
NOTES:
1.
Proceed
both
for
the
right
and
left
chan-
nels
in
the
same
manner.
2.
Note
that
clockwise
turning
of
R160
and
R260
will
increase
the
10
kHz
signal
out-
put
level.
Mode: Playback
MTT-115C
13
6.4 PLAYBACK OUTPUT ADJUSTMENT
SET UP
1. Power voltage:- 50 or 60 Hz AC voltage rated for
the unit to be used in a market country.
. TAPE SELECTOR switch position:- NORMAL.
. Load:- Measuring instrument input impedance.
. Output terminal:- LINE OUTPUT.
. Test tape used:- MTT-150.
. Tape Speed: 1-7/8 IPS (4.75 cm/sec).
PROCEDURES
Play the test tape MTT-150 back. Adjust R166 and
R266 (50 kQ each) for 580 mV playback output level.
NOTE: Proceed both for the right and left channels
in the same manner.
Mode: Playback
MTT-150
ee tyler
een
gees
CAUTION
This adjustment should be performed after the one for
the playback equalizer, If the playback equalizer is
adjusted after the playback output adjustment, the
playback output should be readjusted.