Sony WX-C55 Service Manual page 22

AM Auto Scan/Stop Level Adjustment
Note : This adjustment should be performed after the FM Auto
Scan / Stop Level Adjustment is done.
Setting :
SOURCE n MODE button
FREQUENCY SELECT switch (E model) : AM 10k
AM RF signal
generator
AM dummy
antenna (50 Ω )
Carrier frequency : 1000 kHz
Output level : 30 dB (44.7 µV)
Mode : mono
Modulation : 1 kHz, 22.5 kHz deviation (30%)
Procedure :
1. Set to the test mode. (See page 20.)
2. Push the SOURCE button.
3. Push the MODE button and set to AM.
Display
SHUF1
4. Push the preset 3 button.
Display
SHUF1
5. Adjust with the volume RV1 on TU1 so that the "AM"
indication turns to "2" indication on the display window. But,
in case of already indicated "2", turn the RV1 so that put out
light "2" indication and adjustment.
Display
SHUF1
Adjustment Location : See page 23.
22
: AM
30 Ω 15 pF
65 pF
set set
antenna
terminal
PRESET
PRESET