Marantz SUPERSCOPE CD-320 - 5 B-17 Record-Playback, Harmonic Distortion Measurement; 5 B-18 Record-Playback Signal-to-Noise Ratio Measurement

cD-320
58.17
Rlcord-Pl.ybâck,
Hârmonic
Ohrortion M.$.
SET UP
.
50/60 Hz AC voltâge
rated fro
the unil to
b€
used in
a
rnarket
country.
.
DC6V
2. Input:
1 kH2,
60 dB signal
3. Playback
output level:
Same
âs the recoroeo
signal level
5.
Load: Measurinq
instrument input
impedance
Measuring
output
terminal:
LINE Output
Cassette tâpê used:
lDK AC-211,
AC-511
and
soNY cs.30
?FOCEOUBES
1. Record
the 1 kHz
signal
in
the norm.t r€cording
2. Play
the
recorded
signal
back
in
rhe normal
play,
bæk
nate. Calibrate
the
harmonic
distortion
meter
to l0o%
ar the TNPUT
coNT. adjurt
the
adjusiing knob tor minimum
meter
pointer
deftec-
lion, and reâd
the
harmonic
disrortion.
3. Proceed
both for
th€ right ând left
channets rô
lhe râme manne..
4. Præeed for
the NORMAL,
CrOz ând Fe.Cr
posi.
rions each in
the same
mânner.
STATOAROS
L Less
than 2.5% for rhe NOFMAL
and CrO,
posi-
2. Less thân 3.5% lor
the
Fe.Cr
posirion.
CAUTIONS
l. 8e tùre
to demagnetize
the
heads
âs the measur€d
vâlues
may d€viate
from the accu.ate values,
2, Note
thar exce$ive wow
and llurrer
also causes
devialion
of the measur€d values.
58.18
Rscord.Plâyb.ck
Signd-to-Noit.
Rrtio M..r.
SET UP
.
50/60 Hz AC voltâg€
raæd lor
the unh
to b€
ur€d
an a mârket counùy.
.
oc6v
2. Input:
I kHz,
-60
dB risnal
3. Playback
outpur levelr
Sam€ as
thè r€corded
4.
Load: Me$uring insùument
input impedance
5. Me6uring
ourpur ærminal:
LINE
Ourput
6. Cass€tte
rap€ used: TDK
AC.2ll, AC-s
.nd
soNY cs-30
PNOTEOURES
l.
B€cord the 1
kHz signal in 3 dB.bov€
rhe normâl
2. Oisconnect
the
input
sign.l from
the
macrophone
jack.
In $is siate, record no
signal.
3. Plây
the I kHz rignal back in
the
normâl
plâyback
starc with
the
use
of the t.E.C.
A.Curva Fitrer.
Let the outpur levêl
bê 0 dB as relerenc€ tevôI.
4. Re.d
diffefonce bêtween
the
recorded
0
dB
ref,
erencê
output and
no4iqnâl
ourput levels.
5.
Proceed
both fo.
the
right
ând l€ft
channek in
tn€ sâm€
mânner.
6- Set
the DOLBY switch
ro the ON
position,
ano
proceed
with
similâr mea3urem€nr.
SIAI{OARDS
L Greater
thân 56 dB
DOLBY rwitch.
2. Greâter thân 46
dB
DOLBY swilch.
CAUTION
for the
ON
position
of thê
for
the
OFF
positaon
of thê
Arângê the
CD-320 cord lor minimum
hùm
14