80
1
2
4
1
2
4
C
D
F
A
B
E
XV-DV430
MPX SG
FM SG
PRODUCT
DC
Voltmeter
L201
IC201
pin 21 pin 23
FM/AM TUNER MODULE
F
SIDE B
AM Tuner Section
• There is no adjustment in the AM tuner.
FM75
Ω
antenna terminal
Fig.1 Adjustment Wiring Diagram
Fig.2 Adjustment Point
FM Tuner Section
Step
No.
Adjustment
Title
Measurement
point
Adjustment
point
Adjustment
value
Adjustment State
1
T-METER
Adjustment
L201
0
±
50mV
IC201
Pin 21/Pin23
Adjust L201 so that the DC voltage between Pin 21 and Pin 23
of IC201 (Test point "Vtm") gets within 0
±
50mV.
• Set the mode selector to FM BAND.
• Connect the wiring as shown in Fig. 1.
[ANT. INPUT SIGNAL]
•
Frequency
: 98 MHz
•
Modulation : OFF
•
Input Level : 80 dB
µ
V
6. ADJUSTMENT
6.1 TUNER SECTION
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