Filter
Top Products
– 21 –
AM (MW) Auto Scan/Stop Level Adjustment
Setting:
SOURCE and MODE button : MW
FREQUENCY SELECT switch: 10 k
Procedure:
1. Set to the test mode. (See page 19.)
2. Push the SOURCE button and set to FM.
3. Push the MODE button and set to MW.
Display
FM Noise Focus Adjustment
Setting:
SOURCE button : FM
FREQUENCY SELECT switch: 10 k
FM Stereo Separation Adjustment
Setting:
SOURCE button : FM
FREQUENCY SELECT switch: 10 k
Procedure :
1. Tune the 97.9 MHz
2. The then output level is supposing that (A) dB.
3. Adjust with the volume RV3 on TU1 so that the output level is
(A) –32 dB then signal generator input set to –20 dB.
Adjustment Location: See page 22.
FM Stereo
Level meter Level meter
signal generator
connection reading (dB)
output channel
L-CH L-CH A
B
R-CH L-CH Adjust RV4 on TU1
for minimum reading.
R-CH R-CH C
D
L-CH R-CH Adjust RV4 on TU1
for minimum reading.
Procedure:
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specification: Separation more than 30 dB
Adjustment Location: See page 22.
AM RF signal
generator
Carrier frequency : 1000 kHz
30% amplitude
modulation by
400 Hz signal
Output level : 33 dB
(
44.7
µ
V
)
(50 Ω)
set
AM dummy antenna
30 Ω
15 pF
65 pF
antenna jack (J1)
FM RF signal
generator
Carrier frequency : 97.9 MHz
Output level : 60 dB (1 mV)
Mode : mono
Modulation : 1 kHz, 75 kHz deviation
0.01 µF
set
antenna jack (J1)
+
–
LINE OUT
level mete
r
10 k Ω
FM RF signal
generator
Carrier frequency : 97.9 MHz
Output level : 70 dB (3.2 mV)
Mode : stereo
Modulation :
0.01 µF
set
antenna jack (J1)
+
–
LINE OUT
level mete
r
10 k Ω
main: 1 kHz, 20 kHz deviation (26%)
sub: 1 kHz, 20 kHz deviation (26%)
19 kHz pilot: 7.5 kHz deviation (10%)
MW
SHUF1
1
4. Push the preset 3 button.
Display
MW
SHUF1
3
1
5. Adjust with the volume RV1 on TU1 so that the “MW” indica-
tion turns to “MW0” indication on the display window.
But, in case of already indicated “MW0”, turn the RV1 so that
put out light “0” indication and adjustment.
Display
1
SHUF1
3
Adjustment Location: See page 22.