Sony XR-U700 Service Manual page 23

FM Stereo Separation (60dB) Adjustment
Setting :
FM button: FM1
FM RF signal main antenna
generator terminal VTVM
. é 10ka IL_7 |
+
LINE OUT
Carrier frequency: 97.9MHz
Output level : 7OdB (3.2mvV)
Mode : stereo
Modulation : main: 1kHz, 33.75kHz deviation (45%)
sub: 1kHz, 33.75kHz deviation (45%)
19kHz pilot: 7.5kHz deviation (10%)
Procedure:
FM stereo
signal generator
output channel
L-CH L-CH ®
®
L-CH Adjust RV4 for
VTVM VTVM
connection reading (dB)
minimum reading.
®O
Adjust RV4 for
minimum
L-CH Stereo separation: ®-®
R-CH Stereo separation: O-®D
The separations of both channels should be equal.
Specification : Separation more than 30dB
Adjustment Location : main board (TU1)