Hitachi SR-603, SR-503 Service Manual
SERUICE
MAilUAl
English
Franqais
No.
108
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SPECIFICATIONS
.
FM SECTION
Frequency range
Usable sensitivity
50 dB
Quieting
Signal-to-noise
Harmonic
Frequency response
Image response
Spurious response ratio
IF response
Alternate
Capture ratio
AM suppression
Stereo separation
Sub carrier suppression
rejection
SCA
Muting
Antenna input
.
AM
Sensitivity
Image rejection
IF
threshold
SECTION
Frequency
rejection
Selectivity
Signal-to-noise
Antenna
sensitivity
(at
ratio
distortion
ratio
channel selectivity
range
(IHF)
(at
ratio
ratio
:
sR
65
dtsfl
65
dBf)
100tlz
I kHz
kHz
6
.i*ii#
-503
108
-
Hz-
dB
dB
MHz
1 1.2 dBf
0.15%
l2kHz
(1
kHz)
(6.3pV)
1,605kH2
lm(S/N
(2.0pV)
(3.9pV)
(1?
3dB)
dB), 15pV
20
Stereo:37 dBf
Stereo: 67 dB
Stereo: 0.3%
Stereo: 0.3%
Stereo:
0.4%
(IHF,
88
Mono :
Mono: 17 dBf
Mono: 74 dB
Mono:0.15%
Mono:
Mono:0.2%
30
50 dB
80 dB
90
60 dB
1dB
60 dB
a5 dB
60 dB
60
21 dBf
300 ohms balanced
530-
2501tY
55 dB
35 dB
35 dB
50 dB
Ferrite and separate antenna terminal
-603
sR
(39pV)
Ext. Antenna)
(
is indicated IHF
)
'58
AM
/ÍÎil
J
an
STEREO
uary
t977
RECEIUER
HTTACHt
.
SR-503/SR-603
AUDIO
Output
Power
Frequency
Ilarmonic
Intermodulation
Input
Output level
Phono overload level
Signal-to-noise ratio
Damping
Equalizer
Bass control
Treble control
Loudness control
High filter
Semi-conductor
Power
Power
Dimensions
Weight
SECTION
RMS
(Both
bandwidth
distortion
(at
rated output)
(at
lz
(at
rated
(at
lznted
sensitivity
(at22W
PHONO
AUX
TAPE.l
TAPE-2
DIN
TAPE
OUT
DIN OUT
(IHF,
PHONO
AUX
TAPE
factor
supply
consumption
SR-503
sR-603
power
channel
characteristics
rated
A network, rated
(SR-603)
driven)
output)
distortion
output)
output)
(Impedance)
(SR-503),32W (SR-603)
(at
(AUX,
1 kHz)
TAPE)
power)
20 watts
RMS,
than
25W
ch + 25W
I
36W/ch + 36W/ch
30W/ch + 30W/ch
42W
ch
I
45W/ch
50W/ch
55W/ch
60W/ch + 60W/ch
Hz-50 kHz
10
(SR-503),30
8 ohms from 20Hz to 20kHz,
at
0.3%
+
+
+
+
total
ch
I
42W
ch
I
45Wi
ch
50Wi
ch
55W/ch
(8
(4
(4
(8
(8
(4
(4
20Hz-2OkHz(tl dB)
Less than 0.3%
Less than 0.03%
than
Less
Less than 0.05%
output,
2.5 mV
200
200 mV ( 0k ohm$
200
450
200
300
300 mV
40 mV
110 mV
70
90 dB
90 dB
25
RIAA
t
10
I
10 dB
+8
-6
FET,
I
FET,4lCs, 18
I
AC
115W or 130VA
171/s(W) x 5|t/ro(H)
43.s(w) x
7.6kg
8.0kg
0.3%
I
kHz)
(a7k
(aOk
mV
(40k
mV
(i00k
mV
(PHONO,
mV
(FM
mV
(AM
(PHONO
dB
(SR-503),
10,3
dB
(r00
dB
(tOtHz;
(100
dB
dB
10kHz
at
4ICs,
120Y 60Hz
13.a(H)
(16.7
(17.6lbs.)
ohm$
ohm$
ohms)
ohms)
AUX at rated input)
400 H2,30% dev.
400 H430%
at rated input)
(SR-603)
30
H4
Hz)
,+4
14
Transistors
Transistors
(SR-503),
x
lbs.)
watts
harmonic
(8
ohms, 1 kHz, T.H.D
ohms, I kHz,T.H.D.
ohms,
I kHz, T.H.D
ohms,
1 kHz, T.H.D
(SR-s03)
ohms)
(SR-603)
ohms)
(SR-503)
ohms)
(SR-603)
ohms)
input. I mV)
mod. input. 5
(l
kHz,
8 ohm$
(l0kHz)
dB
and 18 Diodes
and22 Diodes(SR-603)
145W or 170VA
tVn
x la
35.9(D) cm
(D)
(SR-603)
distortion.
. 0.3%)
0.37,)
.O.3%)
.0.3%)
mV/m)
(SR-503)
(SR-603)
rn.
per
(SR-503)
(SR-603)
(SR-503)
(SR-603)
channel,
with
no
min.
more
v
v
Specifications
designs may be changed
and
without notice for
')
improvement.
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