Teac V-2RX - Specifications and Service Data; Specifications; Mechanical Service Data; Electrical Service Data

-V-2RX/V-4RX _
1
SPECIFICATIONS
AND
SERVICE
DATA
Notes:
1.
Improvements
may
result
in
changes
in
specifications
and
service
data.
2.
O
dB
is
referenced
to
0.775
V
in
this
manual.
SPECIFICATIONS
Track
system
4-track,
2-channel
stereo
Heads
3:
Erase,
record
and
playback
(V-2R
xX)
2:
Erase,
record/playback
(V-4RX)
Type
of
tape
Cassette
tape,
C-60
and
C-90
(Philips
type)
Tape
speed
4.76
cm/s
(1-7/8
ips)
Input
(level
and
impedance)
MICRO-
PHONE:
Specified
input
level:
~57
dB
(1.09
mV)/10
kahms
Minimum
input
level:
-67
dB
(346
nV)
LINE
IN:
Specified
input
level:
-9
dB
(275
mV)/50
kohms
Minimum
input
level:
~19
dB
(86.9
mV}
Output
(level
and
impedance)
OUTPUT:
Specified
output
level:
-3.5
dB
(518
mV)/
50
kohms
PHONES:
Specified
output
level:
-15
dB
(138
mV)/8
ohms
Equalization
‘METAL:
3180
us+
70us
Co(CrO,):
3180us+
70us
NORMAL:
3180
ys
+
120
us
Head configuration
1/2-track, 1-channel erase head
1/4-track,
2-channel
record
and
playback
head
(V-2RX)
1/4-track,
2-channel
record/playback
head
(V-4RX)
Motors
1
DC
servo
motor
(for
capstan
drive)
4 DC motor (for reel drive)
Bias frequency 100 kHz
Operation
position
Horizontal
Power requirements
100/120/220/240
V
AC,
50/60
Hz,
29
W
(V-4RX:
28
W)
(General export)
120
V
AC,
60
Hz,
29
W
(V-4RX:
28
W)
(U.S.A./Canada)
220
V
AC,
50
Hz,
29
W
(V-4RX:
28
W)
(Europe)
940
V
AC,
50
Hz,
29
W
(V-4RX:
28
W)
(U.K./Australia)
Weight
7.0
kg
(15-7/16
Ibs.)
net
Dimensions
277 mm (10~7/8")
280 mm (11"')
SERVICE DATA
MECHANICAL
Tape
speed
deviation
3,000
Hz
=
70
Hz
Tape speed drift 70 Hz
Wow and flutter
Playback: 0.06% (WRMS)
Record/playback: 0.25% (RMS)
Pinch
roller
pressure
350
g
to
450
g
(12.3
oz
to
15.9
oz)
Reel Torque
Take-up:
35
to
65
g-cm
(0.49
to
0.90
oz-inch)
Supply: 2 to 4 g-cm (0.028 to 0.056 oz-inch)
FF./
REW:
80
to
150
g-cm
(1.1
to
2.1
oz-inch)
Fast
winding
time
90 seconds for MTT-501 (C-60)
ELECTRICAL
Frequency response
See Figs. 5-6 and 5-8 to 5-10
Signal-to-noise ratio
Playback: NORMAL: 47 dB min.
Overall: METAL, Co (CrO,): 46 dB min.
NORMAL: 45 dB min.
Erase
efficiency
65
dB
min.
at
1
kHz
(measured
with
input
10
dB
higher than the specified input level)
Channel separation 30 dB min. at 1 kHz
Adjacent track crosstalk 40 dB min. at 125 Hz
Total
harmonic
distortion
1.8%
or
less
with
METAL
and
Co
(CrO.,) tapes
2.0% or less with NORMAL tape
e
Dolby
Noise
Reduction
System
manufactured
under
license
from
Dolby
Laboratories
Licensing
Corporation.
“Dolby”
and
the
double-D
symbol
are
trademarks
of
Dolby
Laboratories
Licensing
Corporation.
e
dbx
Noise
Reduction
system
made
under
license
from
dbx,
Incorporated.
The
name
“dbx”
and
the
dbx
symbol
are
trademarks
of
dbx,
Incorporated.
CAUTION
¢.
Parts
marked
with
this
sign
are
safety
critical
components.
They
must
always
be
replaced
with
identical
components
—
refer
to
the
appropriate
parts
list
and
ensure
exact
replace-
ment.