XV-DV99
68
1234
1234
C
D
F
A
B
E
6. ADJUSTMENT
6.1 TUNER SECTION
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.
FM75Ω 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 dBµV
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