Marantz SUPERSCOPE CD-320 - 5 B-21 Leak Bias Measurement; 5 B-22 Cross Talk Measurement; 5 B-23 Channel Separation Measurement

cD-320
58-21
Lêâk 8ia!
Mêasursmônl
SET
UP
.
50/60
Hz AC
voltage râted
lor the
unit 10
be
used
in
a
markel
country.
.
DC6V
2. Input:
1 kHz,
-60
dB
signal
3. Loâd:
Measuring
instrument
inpul ampedance
4. Levelconùol
Position:
SRL
5.
Tâpe
selector
switch
position:
NORIVIAL
CrO,
Pn0cE0u8Ês
1. Record
the
1 kHz
input signâl
in the
normâl record'
ing state. Let the
monitor outpû
level .t
$e LINÊ
.OUT
lerminal
be O
dB at
r€fercnc€
level.
Read
difference
of
the output
level
having
the Inpul
rignaldisconnected
from the
0 dB refer€nce
level
2.
Proceed both
lor the
riqht and
left channelt
in the
slaf{ 0aR0
Lower than
-47
dB
58.22
Cro$
Talk
Mè$ur.(r|.nt
SET
UP
|
50/60
Hz
AC voltage
rarcd
lor the
unil to be
used
in a
market countrY.
.
DC6V
2. TAPE
selegtor
swhch
position:
NORIVAL
3. Loadr
Measuring
instrum€nt
input impedance
4. lvleasuring
output terminâl:
LlNEOutput
5.
Test lape
used:
MTT-I21
PEOCEOUR€S
1. Playback
the
B channel
on the
side A of
rhe 1est
tâpe
N|TT 121.
Assure
lhal ùe output
response at
I kHz b€ 0 dB as
reference
level
2. ln
turn,
plaYback
the
R
channel on
the side
B
of the
test
tape
NITT l2l.
Beâd the
output
levÊl
deviâæd
from the
0 dB
reierence
level
STAI{OARO
Less
thân
55 dB
CHANGE
OF
POWER
TRANSFORMER
pÀirvrÀiv
vor-race
(tor
Europe
Model
onlv)
The CD.32O
is wired
ior 220V
line volrâge
ri 'an De
operaled
wilh
llOV
AC
bv changins
the
power
trâns'
lorme,
leâd
wire as
illunrated
58-23
Channsl Sêparaiion
Mâ$urem.m
SET UP
.
50/60
Hz
AC vollâge
rârcd for the
unil to
be
us€d in a
mârket country,
.
DC6V
2. TAPE
selector
swirch
position:
NORMAL
3.
MONITOR switch
Polition:
TAPE
4. Load:
Nleâsufing
inslrument
input
ampedance
5.
Meâsuring
output telminâl:
LINE Outpui
6. Tert tape
used:
MTT
l4l
PROCEOURES
1.
Playba.k the
L channel
ol rhe
t€tt r.pe
MTT'
141. Assume
that the
output
reterence â1
I kHz
bê
0 dB at
rêferencê
level.
2.
In rurn,
playbâck
the
L channê|.
Reâd the
outpur
level lrom
the 0 dB
reference
lêvel.
sra
oano
Less than
34 dB
l6