Sony XR-C9100R Service Manual page 22

FM Stereo Separation Adjustment (WIDE)
Setting :
SOURCE button : FM
FM RF signal
generator
antenna
terminal
0.01 µ F
Carrier frequency : 98.00 MHz
Output level : 70 dB (3.2 mV)
Mode : stereo
Modulation : main : 1 kHz, 20 kHz deviation (26.5%)
sub : 1 kHz, 20 kHz deviation (26.5%)
19 kHz pilot : 7.5 kHz deviation (10%)
Procedure :
FM stereo
Level meter
signal generator
connection
output channel
L-CH L-CH
R-CH L-CH
R-CH R-CH
L-CH R-CH
L-CH stereo separation : A – B
R-CH stereo separation : C – D
The separations of both channels should be equal.
Specification : Separation more than 24 dB
Adjustment Location : See page 24.
level meter
10 k Ω
set
LINE OUT REAR
Level meter
reading (dB)
A
B
Adjust RV3 on TUX10
for minimum reading.
C
D
Adjust RV3 on TUX10
for minimum reading.
– 22 –
FM Stereo Separation Adjustment (NARROW)
Setting :
SOURCE button : FM
FM RF signal
generator
antenna
terminal
0.01 µ F
Carrier frequency : 98.00 MHz
Output level : 70 dB (3.2 mV)
Mode : stereo
Modulation : main : 1 kHz, 20 kHz deviation (26.5%)
sub : 1 kHz, 20 kHz deviation (26.5%)
19 kHz pilot : 7.5 kHz deviation (10%)
Procedure :
1. Push the SHIFT button.
2. Push the 4 button three times.
3. Push the 5 button twice and set to NARROW mode.
FM stereo
Level meter
signal generator
connection
output channel
L-CH L-CH
R-CH L-CH
R-CH R-CH
L-CH R-CH
L-CH stereo separation : A – B
R-CH stereo separation : C – D
The separations of both channels should be equal.
Specification : Separation more than 18 dB
Adjustment Location : See page 24.
level meter
10 k Ω
set
LINE OUT REAR
Level meter
reading (dB)
A
B
Adjust RV4 on TUX10
for minimum reading.
C
D
Adjust RV4 on TUX10
for minimum reading.