XR-C7200R - Sony Car Audio Service Manual (repair manual). Page 18

Read Sony XR-C7200R Service Manual online

– 18 –
FM Stereo Separation Adjustment
Setting:
[SOURCE]
 button: FM
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 26 dB
Adjustment Location: See page 20.
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 TU10
for minimum reading.
R-CH
R-CH
C
D
L-CH
R-CH
Adjust RV4 on TU10
for minimum reading.
FM RF signal
generator
Carrier frequency : 98.0 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%)
0.01 
µ
F
set
antenna jack (J10)
+
speaker out terminal
level meter
FM RDS S-Meter Adjustment
Setting :
[SOURCE]
button: FM
Procedure :
1. Set to the test mode. (See page 16.)
2. Push the  
[SOURCE]
button and set to FM.
Display
3. Push the preset  
[10]
  button.
4. Adjust RV110 on MAIN board so that the display indication
is “16.0”.
Display
Specification : Display indication : 15.8 to 16.2.
Adjustment Location : See page 20.
set
antenna jack (J10)
FM RF signal
generator
Carrier frequency
: 98.00 MHz
Output level
: 35 dB (56.2 
µ
V)
Mode
: mono
Modulation
: no modulation
0.01 
µ
F
REG
SHUF1
REG
SHUF1
Page of 40
Display

Click on the first or last page to see other XR-C7200R service manuals if exist.