Sony CDX-C6850R Service Manual page 20

Fm/mw/lw compact disc player
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3 7 63 1515 0
FM RDS S-Meter Adjustment
Setting :
SOURCE button : FM
FM RF signal
generator
Carrier frequency : 98.00 MHz
: 35 dB (56.2 µ V)
Output level
Mode
: mono
Modulation
: no modulation
Procedure :
1. Set to the test mode. (See page 18.)
2. Push the SOURCE button and set to FM.
Display
3. Push the preset 10 button.
4. Adjust RV801 so that the display indication is "13.0".
Display
TE
L 13942296513
Specification : Display indication : 12.8 to 13.2.
Adjustment Location : See page 21.
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.
http://www.xiaoyu163.com
antenna
terminal
0.01 µ F
set
SHUF
SHUF
x
ao
y
i
http://www.xiaoyu163.com
8
MW Auto Scan/Stop Level Adjustment
Setting :
SOURCE n MODE button : MW
AM RF signal
generator
Carrier frequency : 999 kHz
30% amplitude
modulation by
1 kHz signal
: 33 dB (44.7 µ V)
output level
Procedure :
1. Set to the test mode. (See page 18.)
2. Push the SOURCE button.
3. Push the MODE button and set to MW.
Q Q
3
6 7
1 3
4. Push the preset 3 button.
5. Adjust with the volume RV1 on TU601 so that the "MW"
indication turns to "MW0" indication on the display window.
But, in case of already indicated "MW0", turn the RV1 so that
put out light "0" indication and adjustment.
Adjustment Location : See page 21.
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.
– 20 –
2 9
9 4
2 8
30 Ω
65 pF
AM dummy
antenna (50 Ω )
set
antenna
terminal
Display
SHUF
1 5
0 5
8
2 9
9 4
Display
SHUF
Display
SHUF
m
co
9 9
15 pF
2 8
9 9

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