Sony XR-C8220, Service Manual

Page: 17 / 52

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AM Auto Scan/Stop Level Adjustment
Setting:
[SOURCE]
n
[MODE]
buttons : AM
FREQUENCY SELECT switch (E model): AM 10 k
Procedure:
1. Set to the test mode. (See page 14)
2. Push the
[SOURCE]
button and set to FM.
3. Push the
[MODE]
button and set to AM.
Display
4. Push the preset
[3]
button.
Display
5. Adjust with the volume RV1 on TUX10 so that the “AM” in-
dication 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 18.
AM RF signal
generator
Carrier frequency : 1000 kHz
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
SHUF
SHUF
SHUF