Sony XR-C8220 Service Manual page 16

FM Stereo Separation Adjustment (WIDE)
Setting:
[SOURCE]
button
FREQUENCY SELECT switch
(E model)
[SHIFT]
button
[4]
Preset (PLAY MODE)
[5]
n
(n) buttons
FM RF signal
generator
antenna jack
0.01 µ F
Carrier frequency : 97.9 MHz
Output level : 70 dB (3.2 mV)
Mode : stereo
Modulation : main : 1 kHz, 33.75 kHz deviation (45%)
sub : 1 kHz, 33.75 kHz deviation (45%)
: 19 kHz pilot: 7.5 kHz deviation (10%)
Procedure:
FM Stereo
Level meter
signal generator
connection
output channel
L-CH
R-CH
R-CH
L-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 18.
: FM
: FM 200 k
: ON (light up SET UP and
PLAY MODE)
: WIDE mode
level meter
10 k Ω
+
set
–
LINE OUT REAR jack
(CN780)
Level meter
reading (dB)
A
L-CH
B
L-CH Adjust RV3 on TUX10
for minimum reading.
C
R-CH
D
R-CH Adjust RV3 on TUX10
for minimum reading.
FM Stereo Separation Adjustment (NARROW)
Setting:
[SOURCE]
button
FREQUENCY SELECT switch
(E model)
[SHIFT]
button
[4]
Preset (PLAY MODE)
[5]
n
(n) buttons
FM RF signal
generator
antenna jack
0.01 µ F
Carrier frequency : 97.9 MHz
Output level : 70 dB (3.2 mV)
Mode : stereo
Modulation : main : 1 kHz, 33.75 kHz deviation (45%)
sub : 1 kHz, 33.75 kHz deviation (45%)
: 19 kHz pilot: 7.5 kHz deviation (10%)
Procedure:
FM Stereo
signal generator
output channel
L-CH
R-CH
R-CH
L-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 18.
– 16 –
: FM
: FM 200 k
: ON (light up SET UP and
PLAY MODE)
: NARROW mode
level meter
10 k Ω
set
LINE OUT REAR jack
(CN780)
Level meter Level meter
connection reading (dB)
A
L-CH
B
L-CH Adjust RV4 on TUX10
for minimum reading.
C
R-CH
D
R-CH Adjust RV4 on TUX10
for minimum reading.
+
–