XR-CA300, XR-CA320, XR-CA320X, XRS-CA130 - Sony Car Audio Service Manual (repair manual). Page 16

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16
XR-CA300/CA320/CA320X
FM Stereo Separation Adjustment
Setting:
[SOURCE]
 button: FM
[FREQUENCY SELECT]
 switch: FM 50 k
(XR-CA320/CA320X only)
Procedure:
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specified Value: Separation more than 30 dB
Adjustment Location: See page 17.
FM Stereo
Level meter
Level meter
signal generator
connection
reading (dB)
output channel
L-CH
L-CH
A
B
R-CH
L-CH
Adjust RV2 on TU100
for minimum reading.
R-CH
R-CH
C
D
L-CH
R-CH
Adjust RV2 on TU100
for minimum reading.
FM RF signal
generator
Carrier frequency : 97.9 MHz (XR-CA300)
  98.00 MHz (XR-CA320/CA320X)
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%)
0.01 
µ
F
set
antenna jack (ANT100)
+
speaker out terminal
level meter
10 k
AM Auto Seek/Stop Level Adjustmant
Make this adjustment after “FM Auto Seek/Stop Level Adjust-
ment”.
Setting:
[SOURCE]
 button: AM
[FREQUENCY SELECT]
 switch: AM 9 k
(XR-CA320/CA320X only)
Procedure:
1. Set to the test mode. (see page 13)
2. Push the 
[SOURCE]
 button and set to FM.
3. Push the 
[MODE]
 button and set to AM.
Display
4. Adjust with the volume RV1 on TU100 so that the “AM” indi-
cation turns to “AM0” indication on the display window. But,
in case of already indicated “AM0”, turn the RV1 so that put
out light “
0
” indication and adjustment.
Display
Adjustment Location: See page 17.
MBP
SHUF
(XR-CA300)
MBP
SHUF
(XR-CA320/CA320X)
AM RF signal
generator
Carrier frequency : 1000 kHz (XR-CA300)
  999 kHz  (XR-CA320/CA320X)
30% amplitude
modulation by
1 kHz signal
Output level
: 33 dB (44.7 
µ
V)
(50 
)
set
AM dummy antenna
30 
15 pF
65 pF
antenna jack 
(ANT100)
MBP
SHUF
(XR-CA300)
MBP
SHUF
(XR-CA320/CA320X)
Page of 47
Display

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