JVC RC-QC7 User Manual

RC-QC7 eee
6.Main Adjustment
mw
Measurement
Instruments
Required
for
@
Tuner
section
Adjustment
Voltage
applied
to
tuner-------ssrrrrerree
+B:
DC
5.7V
VT:
DC
12V
1.
Low
frequency
oscillator
Reference
measurement
output-::---
26.1mV
(0.28V)/3
Q
This
oscillator
should
have
a
capacity
to
output
OdBs
to
Input
positions------+-+-++++--+-
AM:
Standard
loop
antenna
600
Q
at
an
oscillation
frequency
of
50HZ~20kHZz.
FM:
TP1
(hot)
and
TP2
(GND)
2,
Attenuator
impedance:
600
2
3.
Electronic
voltmeter
4.
Distortion
meter
5.
Frequency
counter
@
Standard
measurement
positions
of
volume
6.
Wow
flutter
Sound
a\e\0
(=
Reker
Flat
position
7.
Test
tape
.STU
fof
=\
el
f=
=
Off
VTT
712:
Tape
speed
and
running
unevenness
(3kHz)
Up
and
down
adjustment
of
volume---------+++++-+--
VOL.
23
VTT
724:
Reference
level
(1kHz)
TMT
7036:
Head
angle
(10kHz),
playback
frequency
Precautions
for
Measurement
characteristics
(1kHz)
and
dubbing
1.
Apply
30pF
and
33kQ
to
the
IF
sweeper
output
side
frequency
characteristics
(63,
1
and
10kHz)
and
0.082uF
and
100kQ
in
series
to
the
sweeper
Because
of
frequency
-
mixed
tape
with
63,
1,
10
and
input
side.
14kHz
(250nWb/m
-
24dB),
use
this
tape
together
with
a
2.
The
IF
sweeper
output
level
should
be
made
as
low
filter.
as
possible
within
the
adjustable
range.
8.
Blank
tape
3.
Since
the
IF
sweeper
is
a
fixed
device,
there
is
no
TAPE
1:
AC-225
need
to
adjust
this
sweeper.
TAPE
IL:
AC-514
4.
Since
a
ceramic
oscillator
is
used,
there
is
no
need
to
9.
Torque
gauge:
For
play
and
back
tension
perform
any
MPX
adjustment.
FWD
(TW2111A),
REV
(TW2121A)
and
5.
Since
a
fixed
coil
is
used,
there
is
no
need
to
adjust
FF/REW
(TW2231A)
the
FM
tracking.
10.
Extension
cord
for
adjustment:---------
EXTRCQW3-
KIT
6.
The
input
and
output
earth
systems
are
separated.
In
case
of
simultaneously
measuring
the
voltage
in
both
of
the
input
and
output
systems
with
an
electronic
voltmeter
for
two
channels,
therefore,
the
earth
should
mi
Measurement
Conditions
be
connected
particularly
carefully.
7.In
the
case
of
BTL
connection
amp.,
the
minus
Power
supply
voltage
--ssssrrressrreersseeeess
AC
230V
(50Hz)
terminal
of
speaker
is
not
for
earthing.
Therefore,
be
Reference
OUutput----sss1-srrterrrereree
Speaker:
0.775V/3
Q
sure
not
to
connect
any
other
earth
terminal
to
this
Headphone:
0.245V/32
Q
terminal.
This
system
is
of
an
OTL
system.
Reference
frequency
and
input
level
-
1kHz,
AUX:
-
8dBs
8.
For
connecting
a
dummy
resistor
when
measuring
the
Input
for
confirming
recording
and
playback
output,
use
the
wire
with
a
greater
core
size.
characteristics
«sssssrrrrrtteretesereess
AUX:-
28dBs
9,
Whenever
any
mixed
tape
is
used,
use
the
band
pass
Measurement
output
terminal
--------+:+++*
Speaker
CN192
filter
(DV-
12).
x
Load
resistance
«vrrrrrreerre
reeset
este
rete
te
tetseeee
ete
cetes
32
@
Radio
input
signal
AM
modulation
frequency
dee
c
cece
nec
ence
eneseenneerees
400Hz
Modulation
|
7-\0)
(0)
AER
ees
30%
FM
modulation
frequency
ee
cecccnccsaaccceccsnesceccoscecs
400Hz
Frequency
displacement
errrrree
rr
rrr
rrr
eter
tr
etre
22.
5kHz
34 (No.10036)

JVC RC-QC7 Specifications

General

Brand	JVC
Model	RC-QC7
Category	CD Player
Language	English