75
XR-A9800D
Step
No.
Adjustment
Title
AM SG (400Hz, 30% Mod.)
Reception
Frequency
Display
Adjustment
Location
Specifications
Frequency
(kHz)
Level
(dB
µ
V/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
FM75
Ω
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
(dB
µ
V)
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