Sony CDX-C4840R Service Manual page 20

MW Auto Scan/Stop Level Adjustment
Setting :
D-BASS switch
SOURCE n MODE button : MW
AM RF signal
generator
AM dummy
antenna (50 Ω )
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.
Display
TP
4. Push the preset 3 button.
Display
TP
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.
Display
TP
Adjustment Location : tuner unit (TU601)
: OFF
30 Ω 15 pF
65 pF
set
antenna
terminal
SHUF
SHUF
SHUF
– 20 –
Adjustment Location : tuner unit (TU601)
TU601
RV1
MW AUTO SCAN/
STOP LEVEL ADJ
RV2
FM AUTO SCAN/
STOP LEVEL ADJ
RV801
FM RDS
S-METER ADJ
RV4
FM STEREO
SEPARATION ADJ
(NARROW)