Sony XR-C8220R Service Manual page 20

FM Stereo Separation Adjustment (Narrow)
Setting:
[SOURCE]
button
[SHIFT]
button
[4]
Preset (PLAY MODE)
[5]
n
(n) buttons
FM RF signal
generator
antenna jack
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 (26.7%)
sub : 1 kHz, 20 kHz deviation (26.7%)
: 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 18 dB
Adjustment Location: See page 22.
: FM
: ON (light up SET UP and
PLAY MODE)
: NARROW mode
level meter
10 k Ω
+
set
–
LINE OUT REAR jack
(CN780)
Level meter
reading (dB)
A
B
Adjust RV4 on TUX10
for minimum reading.
C
D
Adjust RV4 on TUX10
for minimum reading.
FM RDS S-Meter Adjustment
Setting:
[SOURCE]
button: FM
FM RF signal
generator
Carrier frequency : 98.00 MHz
Output level
Mode
Modulation
Procedure:
1. Set to the test mode. (See page 18)
[SOURCE]
2. Push the
[10]
3. Push the button.
4. Adjust RV10 so that the display indication is "13.2".
Specification: Display indication: 13.0 to 13.4
Adjustment Location: See page 22.
– 20 –
antenna jack
0.01 µ F
set
: 35 dB (56.2 µ V)
: mono
: no modulation
button and set to FM.
Display
SHUF
Display
SHUF