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MW Auto Scan/Stop Level Adjustment
Setting:
[SOURCE]
n
[MODE]
button : AM (MDX-C7970)
MW (MDX-C7970R)
FREQUENCY SELECT switch : AM 10 k (E model)
30 Ω 15 pF
65 pF
AM RF signal
generator
AM dummy antenna
(50 Ω )
set
antenna jack (J1)
Carrier frequency : 1000 kHz (MDX-C7970)
999 kHz (MDX-C7970R)
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)
[SOURCE]
2. Push the
button and set to FM.
[MODE]
3. Push the
button and set to AM or MW.
Display
*2
SHUF
*3
TP
*4
4. Adjust with the volume RV1 on TU1 so that the "AM" or "MW"
indication turns to "AM0" or "MW0" indication on the dis-
play window.
But, in case of alredy indicated "AM0" or "MW0", turn the
RV1 so that put out light "0" indication and adjustment.
Display
*2
SHUF
*3
TP
*4
*2: MDX-C7970R indicates "MW".
*3: MDX-C7970R indicates "999".
*4: Only MDX-C7970R indicates.
Adjustment Location: See page 22.
– 21 –
Adjustment Location:
– SET UPPER VIEW –
RV1 RDS S-Meter Adjustment (MDX-C7970R)
TU1
RV1 AM (MW) Auto Scan/Stop Level Adjustment
RV2 FM Auto Scan/Stop Level Adjustment
RV3 FM Stereo Separation Adjustment (Wide) (MDX-C7970R)
FM Stereo Separation Adjustment (MDX-C7970)
RV4
FM Stereo Separation Adjustment (Narrow) (MDX-C7970R)
– 22 –
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