75
XR-A9800D
Step
No.
Adjustment
Title
AM SG (400Hz, 30% Mod.)
Reception
Frequency
Display
Adjustment
Location
Specifications
Frequency
(kHz)
Level
(dBµV/m)
1
Front End
Sensitivity
999 (∗1) 35 to 45 999kHz (∗1)
T6201
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
6. ADJUSTMENT
6.1 TUNER SECTION
FM Tuner Section
• Set the mode selector to FM BAND.
• Connect the wiring as shown in Fig. 1.
AM Tuner Section
• Set the mode selector to AM BAND.
• Connect the wiring as shown in Fig. 1.
Note:
Before adjusting, make sure there is no gap between L6401 and L6402. If there is a gap between them, bring them into contact with each other
first, and then make adjustments.
Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.
AM SG
MPX SG FM SG
PRODUCT
DC
Voltmeter
FM75Ω antenna terminal
AM antenna terminal
60cm
Center
Center
Loop antenna
Fig.1 AM and FM Adjustment Wiring Diagram
Step
No.
Adjustment
Title
FM SG (1kHz, ± 75kHz dev.)
Reception
Frequency
Display
Adjustment
Location
Specifications
Frequency
(MHz)
Level
(dBµV)
1
Front End
Sensitivity
98 0 to 30 98MHz
L6402
T6401
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.
2
TUNED IND.
Lighting Level
98 18 ± 2 98MHz VR6201
Adjust so that the indicator of TUNED IND.
strats to light up.
FM/AM TUNER MODULE
AXX7041
L6402
L6401
T6401
T6201
IC6201
Pin 20
VR6201
AM
antenna
terminal
FM
antenna
terminal
YELLOW BLACK
Fig.2 Adjustment Point
SIDE A
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