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PHOTO : SO-9100H
The SO-9100H
and
SO-9100HB
are quite the same except for the Panel and
knobs different in color between
them.
So, this Service
Manual
is prepared
refering to the SO-9100H
alone:
the dif-
ference
of
the
SO-9100HB
against
it can
be made
out with a reference
to
"DIFFERENTIAL
PARTS
LIST" at the end of PARTS
LIST.
BB OPToNica] SERVICE MANUAL
STEREO CONTROL
AMPLIFIER
MODEL
SO-9100H
(Silver Panel)
SO-9100HB
(Brown
Panel)
In the
interests
of user-safety
the set should
be restored to its original condition and only
parts identical to those specified be used.
SPECIFICATIONS
GENERAL
DESCRIPTION
Power
source:
A.C.
110/220/240V, 50/60Hz
Power
consumption:
25 W
Semiconductors:
16-Transistors
82-FETs
21-Diodes
18-LEDs
Dimensions:
Width;
430mm
(16-15/16 inch)
Height;
75mm_
(2-31/32 inch)
Depth;
382mm
(15-1/16 inch)
Weight:
6.5kg (14.4 lbs.)
Circuit type:
Head
amplifier for moving
coil type cartridge;
Equalizer;
All FET,
ICL (input capacitorless), 2-
stage differential amplifier, DC ampli-
fier
ICL
(input
capacitorless),
all
FET
differential
amplifier,
complementary
final
stage,
dual
power
supply,
DC
amplifier
Tone
control;
ICL
(input
capacitorless),
all
FET
differential
amplifier,
dual
power
supply,
DC
amplifier
Input sensitivity and
input
impedance:
TAPE PB 1 and 2;
TAPE
PB (DIN socket);
150mV/47K ohms
150mV/47K ohms
Allowable
maximum
input for equalizer:
PHONO
1 and 2;
300mV
(RMS,
1kHz)
PHONO
3;
27mV
RIAA curve deviation: +0,2dB
(20Hz to 20kHz)
Fre
cy
re
+
Ram
i ge nOE Ns Bi
(TUNER,
AUX,
TAPE
PB)
Tone
control:
Bass;
+10dB
at 100Hz
Treble;
+10dB
at 20kHz
Low
filter:
—3dB
at 15Hz,
6dB/octave
—3dB at 30Hz, 6dB/octave
High filter:
—3dB
at 8kHz, 6dB/octave
—3dB
at 15kHz, 6dB/octave
+7.0dB at 100Hz
+4dB at 10kHz
Audio
muting:
—20dB
Signal to noise
ratio: (using
IHF
''A'' network)
PHONO
1 and 2; 84dB
PHONO
3; 70dB
TAPE, AUX
or TUNER;
100dB
Output
level and
loaded
impedance:
REC
1 and
2;
150mV
REC (DIN socket);
30mV/82K ohms
Output:
1V/22K ohms
Harmonic
Distortion:
PHONO
1 and 2;
0.008% at 10V, 20Hz
— 20kHz
TUNER
and AUX; 0.003% at 5V, 20Hz
— 20kHz
Intermodulation:
0.002%
at 3V
Specifications of this model are subject to change without
prior notice.
Loudness
contour:
$O-9 CN
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