Sony TA-AX500 Service Manual page 2

Integrated stereo amplifier
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TA-AX500
Inputs
Setting
Maximum | S/N
of the
oe
input
(weighting
CARTRIDGE | Sensitivity | Impedance | ca oabitity | network,
switch
(1 kH2}
input level)
88 dB
86 dB*
(A, 2.5 mV)
50 k ohm
68 dB
75 dB*
(A, 170 pV)
100 ohm
EQUALIZER IN
* °78 IHF
Outputs
Tone controls
Subsonic filter
General
System
Power requirements
Power consumption
AC outlets
Dimensions
PHONO
—_ceeee teers
MC
170 uV
TUNER,
AUX, CD
TAPE
1, 2
150mV
GRAPHIC
98 dB
100 dB *
(A, 150 mV}
50k ohm
REC OUT 1, 2, GRAPHIC
EQUALIZER
OUT
Voltage 150 mV
Impedance 4.7 k ohms
SPEAKER
A, B
AEP
model:
Accepts speakers of 8 to 16 ohms.
US, UK, E model:
Accepts speakers of 6 to
16 ohms.
HEADPHONES
Accepts low and high impedance head-
phones.
BASS
+10 dB at 60 Hz (turnover freq. 300 Hz)
TREBLE
+8 dB at 25 kHz (turnover freq. 5 KHz)
6 dB/octave attenuation below 15 Hz
Integrated stereo amplifier
Power amplifier section
Legato linear, pure-complementary,
SEPP OCL dc power amplifier with all
stages direct coupled
Preamplifier section
Equalizer section:
Low-noise high-gain
equalizer amp
Audio Current Transfer section:
Bridge-
balance type voltage-to-current converter
FET buffer power supply
US model:
120 V ac, 60 Hz
AEP model:
220 V ac (or 240 V ac adjustable by
authorized Sony personnel), 50/60 Hz
UK model:
240 V ac (or 220 V ac adjustable by
authorized Sony personnel), 50/60 Hz
E model:
120, 220 or 240 V ac adjustable,
50/60 Hz
US model:
162 watts
AEP, E model:
200
watts
UK model: 170 watts
AEP model:
1 switched, 100 watts max.
US, E madel:
1 unswitched, 100 watts max.
Approx.
430 x 130 x 365 mm (w/h/d)
(17 x 54/, x 14%, inches)
including projecting parts and controls
2 switched, total 100 watts max.
Approx.
11 kg (24 Ibs 5 oz) net
Approx.
12.4 kg (27 Ibs 6 0z) in shipping car-
ton
Weight
*Specification
values
are
measured
at 30 dB attenuator,
except
those
of
residual noise and inputs.
MODEL
IDENTIFICATION
— Specification Label —
SON Y:? move no. TA-AX500
INTEGRATED
STEREO
AMPLIFIER
cee
ol
SERIAL NO.
MADE
IN JAPAN
US model:
AC 120 V 60 Hz 162 W
AEP model: AC 220 V 50/60 Hz 200 W
UK model:
AC 240 V 50/60 Hz 170 W
E model:
AC 120, 220 or 240 V 50/60 Hz 200 W
FEATURES
Audio current drive amplifier
An unusual
current transfer circuit design keeps the preamplifier
and power amplifier stages electrically separate, thus equalling the
quality of separate amplifiers.
Legato linear power amplifier stage
The operation of the power
amplifier stage is stable without any
observable distortion up through the higher frequencies. We
call
this power amplifier "iegato linear', because
its switching
distor-
tion is very low and its output waveform smooth.
Wide dynamic range of 120 dB
The
use
of Audio
Current
Transfer
technique
and
legato
linear
power amplifier stage has made the amplifier's dynamic range as
wide as 120 dB in actual use. This assures high-quality reproduction
of digital audio sources.
CD DIRECT switch for pure CD sound reproduction
When
you press the CD DIRECT
switch, all circuits whichare
not
necessary for CD playback are bypassed
and you can enjoy pure
digital sound.
Accepts either of the two types of cartridge
The high-gain equalizer amplifier stage using low-noise transistors
accepts both moving-coil and moving-magnet cartridges.
—2—

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