Teac C-3X Service Manual

3X
1
SPECIFICATIONS
AND
SERVICE
DATA
NOTES:
1.
Improvements
may
result
in
changes
in
specifications
and
service
data.
2.
04B
is
referenced
to
0.775
V
in
this
manual
unless
otherwise
specified.
3.
All
the
electrical
numeral
values
are
for
STANDARD
speed
unless otherwise specified.
SPECIFICATIONS
Track System 4-track, 2-channel stereo
Heads 3: Erase, record and playback
Type
of
Tape
Cassette
tape,
C-60
and
C-90
(Philips
type)
Tape
Speed
4.75
cm/s
(1-7/8
ips),
9.5
cm/s
(3-3/4
ips)
Input (level and impedance)
MIC:
Specified
input
level:
—57
dB
(1.09
mV)/10k
ohms
Minimum input level: —67 dB (346 nV)
LINE
IN:
Specified
input
level:
—9
dB
(275
mV)/50k
ohms
Minimum input level: -19 dB (86.9 mV)
Output (level and impedance)
OUTPUT:
Maximum
output
level:
2.5
dB
(581
mV)/S0k
ohms
Specified output level: —5 dB (436 mV)
PHONES:
Specified
output
level:
-15.8
dB
(126
mV)/8
ohms
Equalization
HIGH STANDARD
METAL
3180
us
+35
us
3180
us
+
70
ps
Co(CrO2)
3180
us
+
35
us
3180
us
+
70
us
NORMAL
|
3180
us+
50
us
3180
us
+
120
us
Head Configuration
1/2-track, 1-channel erase head
1/4-track,
2-channel
record
head
and
playback
head
in
a
single
housing
Motors 1 DC servo capstan motor
1 DC reel motor
Bias Frequency 100 kHz +5 kHz
Operation Position Horizontal
Power Requirements
100/117/220/240
V
AC,
50/60
Hz,
41
W(General
export
model)
117
V
AC,
60
Hz,
41
W(U.S.A/Canada
model)
220
V
AC,
50
Hz,
41
W(Europe
model)
240
V
AC,
50
Hz,41
W(U.K./Australia
model)
Weight 9 kg (19-3/16 Ibs.) net
Dimensions See Fig. 3-2
Noise
Reduction
System
and
Headroom
Extension
System
manufactured
under
license
from
Dolby
Laboratories
Licensing
Corporation.
“Dolby’
and
the
double-D
symbol
are
trademarks
of
Dolby
Laboratories
Licensing
Corporation.
SERVICE DATA
MECHANICAL
Tape Speed Deviation 3,000 Hz +45 Hz
Tape Speed Drift 30 Hz
Wow and Flutter
HIGH STANDARD
Playback 0.065% (WRMS) 0.08% (WRMs)
Record/playback | 0.18% (RMS) 0.25% (RMS)
Pinch
Roller
Pressure
390
g
to
490
g
(13.8
oz
to
17.3
02.)
Reel
Torque
(at
STANDARD
speed)
Take-up:
45
to
65
g-cm
(0.625
to
0.903
oz-inch)
Supply:
3
to
8
g-cm
(0.0417
to
0.111
oz-inch)
F.F.&
REW:
90
to
160
g-cm
(1.25
to
2.22
oz-inch)
Fast
Winding
Time
90
seconds
for
MTT-501
(C-60)
ELECTRICAL
Frequency Response
See Figs. 5-9 to 5-13.
Signal-to-noise Ratio
Playback
Better
than:
HIGH
STANDARD
METAL,
Co(CrO,)
55
dB
52dB
NORMAL
53
dB
48
dB
Overall
Better
than:
HIGH
STANDARD
METAL,
Co(Cr0.)
49
dB
48
dB
NORMAL
46
dB
45
dB
S/N
is
improved
by
5
dB
at
1
kHz
and
10
dB
above
5
kHz
when
Dolby
NR*
is
used.
Erase
Efficiency
65
dB
min.
at
1
kHz
(measured
with
input
10
dB
higher
than
the
specified
input
level)
Channel
Separation
35 dB
min.
at
1
kHz
Adjacent
Track
Crosstalk
40
dB
min.
at
125
Hz
Total
Harmonic
Distortion
2.0%
or
less
with
NORMAL,
Co(Cr02)
and METAL tapes
ldbx
noise
reduction
system
made
under
license
from
dbx,
Incorpo-
rated,
The
word
dbx’
and
the
Symbol
are
trademarks
of
dbx,
incorporated.
CAUTION
must
always
be
replaced
with
identical
components
-
refer
to
the
TEAC
Parts
List
and
ensure
exact
replacement.
AsParts
marked
with
this
sign
are
safety
critical
components.
They}

Teac C-3X Specifications

General

Brand	Teac
Model	C-3X
Category	Cassette Player
Language	English