Sony MDX-C8970 Service Manual page 17

AM Auto Scan/Stop Level Adjustment
Setting:
[SOURCE] [MODE]
n
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 15.)
[SOURCE]
2. Push the button and set to FM.
[MODE]
3. Push the button and set to AM.
4. Adjust the volume RV1 on TU101 by turning clockwise untill
"0" is shown next to "MW" on the display window, If "0" is
already shown or the volume RV1 has been turned too far,
turn it back counterclockwise untill "0" is disappeared once,
then try this adjustment.
Adjustment Location: See page 17.
button : AM
30 Ω 15 pF
65 pF
set
antenna jack (CN101)
Display
SHUF
TP
Display
SHUF
TP
Adjustment Location:
TU101
RV1
AM Auto Scan/Stop
Level Adjustment
RV2
FM Auto Scan/Stop
Level Adjustment
RV3
FM Stereo Separation
Adjustment (Wide)
RV4
FM Stereo Separation
Adjustment (Narrow)
Front
17