Sony XR-CA310 / XR-L210 Service Manual ▷ View online
17
XR-CA310/L210
FM Stereo Separation Adjustment
Setting:
[SOURCE]
(CA310) or
[TUNER]
(L210) button: FM
Procedure:
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
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 18.
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 : 98.00 MHz
Output level
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%)
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
Ω
MW Auto Seek/Stop Level Adjustmant
Make this adjustment after “FM Auto Seek/Stop Level Adjust-
ment”.
Setting:
ment”.
Setting:
[SOURCE]
(CA310) or
[TUNER]
(L210) button: MW
Procedure:
1. Set to the test mode. (see page 14)
2. Push the
1. Set to the test mode. (see page 14)
2. Push the
[SOURCE]
(CA310) or
[TUNER]
(L210) button and
set to FM.
3. Push the
[MODE]
button and set to MW.
Display
4. Adjust with the volume RV1 on TU100 so that the “MW” in-
dication turns to “MW0” indication on the display window.
But, in case of already indicated “MW0”, turn the RV1 so that
put out light “
But, in case of already indicated “MW0”, turn the RV1 so that
put out light “
0
” indication and adjustment.
Display
Adjustment Location: See page 18.
SHUF
TP
MBP
AM RF signal
generator
Carrier frequency : 999 kHz
30% amplitude
modulation by
1 kHz signal
Output level
30% amplitude
modulation by
1 kHz signal
Output level
: 33 dB (44.7
µ
V)
(50
Ω
)
set
AM dummy antenna
30
Ω
15 pF
65 pF
antenna jack (ANT100)
SHUF
TP
MBP
18
XR-CA310/L210
Adjustment Location:
– SET UPPER VIEW –
TU100
RV2
FM Stereo Separation Adjustment
FM Stereo Separation Adjustment
RV100
FM RDS S-Meter Adjustment
FM RDS S-Meter Adjustment
Tape Speed Adjustment
RV3
FM Auto Seek/Stop Level Adjustment
FM Auto Seek/Stop Level Adjustment
RV1
MW Auto Seek/Stop Level Adjustment
MW Auto Seek/Stop Level Adjustment
19
XR-CA310/L210
SECTION 5
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW/LW
〈〈
〉〉
: TAPE PLAYBACK
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: MW/LW
E
: TAPE PLAYBACK
L
: BUS AUDIO IN
• Abbreviation
AMBER : Amber illumination type
GREEN : Green illumination type
GREEN : Green illumination type
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
•
: Carbon pattern.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
5-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
• Abbreviation
AMBER : Amber illumination type
GREEN : Green illumination type
GREEN : Green illumination type
20
XR-CA310/L210
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC200
4
(OSCO)
4
IC900
ud
(OSC)
2
IC1
qs
(OSC2)
3
IC1
qh
(XO)
2.4 Vp-p
231 ns
1.8 Vp-p
54.3 ns
5.4 Vp-p
30.5
µ
s
– CONTROL Board –
2.6 Vp-p
21
µ
s
Click on the first or last page to see other XR-CA310 / XR-L210 service manuals if exist.