Akai AS-8100

3.
1)
2)
AS-8100
TERMINATION PAD
bY
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INPUT OUTPUT
(MODEL 2151-8)
<<. _ ~ AM-FM RADIO IF GENESCOPE
(MODEL MSW-72IC)
Fig. 6
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LO IF -LR2 LRI LA
(
TOP
VIEW
OF
FRONT
END
Fig.
7
AS-8100
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OUTPUT 30020 LCH : INPUT
O-— —~ SPEAKER ~+——-O
FM ANTENNA OUTPUT 80 45W
TERMINATION PAD INEUT
(MODEL MR-200)
FM SIGNAL GENERATOR DISTORTION METER
(MODEL MSG-278G) (MODEL 750C)
. Fig. 8
FM RECEPTION FREQUENCY RANGE
ADJUSTMENT (See Figs. 7 and 8).
Connect the FM Signal Generator Output to the
3002 impedance FM Antenna Terminal of Model
AS-8100 through the termination pad. Introduce
an 882 45W dummy load resistor to the left
channel speaker output and connect a distortion
meter to this output. At this time, with speaker
output at 10 dB, set Speaker Surround Balance
Shift to Front/Left position.
Set the FM Signal Generator to 90 MHz (400 Hz,
30% internal modulation and the output to 90 dB.
4)
5)
6)
Adjust the core of Oscillator Coil “Lo” of FM:
Local Oscillator in front end so that the distortion
meter level is maximum and the distortion factor
is minimum,
Set the tuning indicator to the right end of the
dial. Set the FM Signal Generator frequency to
106 MHz.
Adjust Trimmer Condenser **TCO” in front end so
that the distortion meter level is maximum and the
distortion factor is minimum.
Repeat items 2) through 5) two or. three times
until perfect reception is obtained in the reception
frequency range of 87 to 109 MHz.