Sony XR-1800R Service Manual page 15

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MW Auto Scan/Stop Level Adjustment
Setting:
[TUNER]
button: MW
AM RF signal
generator
AM dummy antenna
(50 Ω )
Carrier frequency : 999 kHz
30% amplitude
modulation by
1 kHz signal
Output level
Procedure:
1. Tune the set to 999 kHz
2. Connect the digital voltmeter to TP101 (SD) on MAIN board.
3. Adjust RV1 on TU100 so that the reading on the digital volt-
meter changes point from low to high.
TE
L 13942296513
Adjustment Location: See page 16.
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30 Ω 15 pF
65 pF
set
antenna jack (CN900)
: 33 dB (44.7 µ V)
digital
voltmeter
MAIN board
+
TP101 (SD)
–
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