Features - Sony TC-K555ES Service Manual

TC-K555ES
I
OdB=O.775V
I
Peak program meters
Response range -40 dB to
+
8 dB
Frequency response 20 - 20,000 Hz zl.5 dB
Response time 1 millisecond
Decay time (from 0 dB to -20 dB)
750 milliseconds
Overshoot none
r
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Inputs Line inputs (phono jacks)
Sensitivity 77.5 mV (-20 dB)
Input impedance 50 k ohms
Outputs Line outputs (phono jacks)
Output level 0.435 V (-5 dB) at a load
impedance of 50 k ohms
Load impedance over 10 k ohms
Headphone output
Output level, variable from -20 dB to
-50
dB at a load impedance of 8 ohms
General
Power requirements AEP model: 220 V ac, 50/60 Hz
(240V ac adjustable by authorized
Sony personnel)
UK model: 240V ac, 50/60 Hz
(220 V ac adj ustable by authorized
Sony personnel)
US, Canadian model: 120 V ac, 60 Hz
E model: 110, 120,220 or 240 V ac ad-
justable, 50/60 Hz
FEATURES
Power consumption
Dimensions
Weight
26 watts
Approx. 430
x
105
x
285 mm (w/h/d)
(17
x
4'/.
x
11'/.
inches)
inclUding projecting parts and controls
Approx. 6.1 kg (13 Ibs 80z)
Three-head system
Separate record and playback heads allow optimum gap settings
and impedance ratings for distortion-free recording and greatly ex-
tended frequency response. For good tape·to-head contact the
heads are mounted in one block and each head is separately ad-
justed for precise azimuth alignment. The three-head system also
enables you to monitor the recorded tape while actually recording.
Newly-developed LA (LaserAmorphous) head
The record/playback head is made of a special amorphous
magnetic alloy developed by Sony, and its cores are solidly welded
by laser. This new highly-durable head provides a wider dynamic
range and a more extended frequency response, especially in the
high-frequency range. The head is designed to take full advantage
of the potential of the metal tapes.
Closed-loop dual-capstan tape drive system
Two pairs of capstans and pinch rollers ensure uniform tape ten-
sion and stable tape-to-head contact. As a result, wow and flutter
and modulation noise are greatly reduced.
Dolby C-type NR (noise reduction) system
In addition to the conventional B-type Dolby NR system, this
cassette deck employs the newly-developed C-type Dolby NR
system which reduces tape noise twice as effectively as the B-type
system. The C-type system also incorporates an anti-saturation
network to improve the high-frequency dynamic range by 4 dB at
10 kHz.
Digital linear counter
This counter indicates the recording or playback time elapsed on
the tape so that the tape can be precisely indexed. While conven-
tional displays can only indicate the elapsed recording time, this
display can indicate with a minus sign how much recording time re-
mains.
Bright FL-display peak program meters
The peak program meters follow the transient peaks of the music
and maintain the peak readings for about 4 seconds. This double
indication makes it easy to set critical recording levels precisely.
Remote control operation
Using the optional RM-50 or RM-80 remote control unit, various
operations-recording, playback, record muting operation, etc.-
can be remotely controlled.
When the RM-65 synchro remote control unit is used to connect
this cassette deck with a turntable equipped with a synchro remote
control jack, the operation of the cassette deck and the turntable
will be synchronized.
Two motors
The two-motor drive system assures accurate and stable tape
transport. The capstan is driven by a linear torque BSL (brush/ess
and slot less) motor to keep wow and flutter low and to provide
smooth torque.
Useful functions
.Record muting function allows you to easily insert a moderately
long blank space between selections.
.Auto play permits one step rewind and playback from the begin-
ning of the tape and the memory function allows you to easily
locate any desired point on the tape.
.A timer switch is provided to turn the deck on and off any number
of times at preset times set on an optional timer.
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