XC-IS21T
56
6.3 TUNER SECTION
6.3.1 FM TUNER SECTION
Set the mode selector to FM BAND.
Connect the wiring as shown in Fig. 6-5.
6.3.2 AM TUNER SECTION
Set the mode selector to AM BAND.
Connect the wiring as shown in Fig. 6-5
Step No.
Adjustment
Title
FM SG (1kHz, ±75kHz dev.) Reception
Frequency
Display
Specifications
Adjustment
Location
Frequency
(MHz)
Level
(dB
µ
V)
106
L6104
L6105
L6102
T6101
1
Front End
Sensitivity
0 – 30
106 MHz
Note: Before adjusting, make sure there is no gap between L6101 and L6102 as well as between L6103 and L6104. If there is a gap between
them, bring them into contact with each other first, and then make adjustments.
Adjust so that the DC voltage between the IC6201-
Pin 20 and GND becomes at maximum level.
Stereo Distortion
T6101
Minimize the distortion with 1/8 rotation of the
core.
98 MHz
80
98
(ON STEREO)
2
Step No.
Adjustment
Title
Reception
Frequency
Display
Specifications
Adjustment
Location
Frequency
(kHz)
Level
(dB
µ
V/m)
AM SG (400Hz, 30% Mod.)
∗
1: For the area using 10 kHz step, frequencies should be 1000 kHz.
999
*
1
T6201
1
Front End
Sensitivity
35 – 45
999 kHz
*
1
Adjust so that the DC voltage between the IC6201-
Pin 20 and GND becomes at maximum level.
TUNED IND.
Lighting Level
VR6201
Adjust so that the indicator of TUNED IND. starts
to light up.
98 MHz
18 ± 2
98
3
AM SG
MPX SG
FM SG
PRODUCT
DC
Voltmeter
FM75
Ω
antenna terminal
AM antenna terminal
60cm
Center
Center
Loop antenna
Fig. 6-5 AM and FM Adjustment Wiring Diagram
FM/AM TUNER MODULE (AXQ7058)
AXX7042
L6101
L6102
L6103
L6104
L6105
T6101
T6201
VR6201
AM
antenna
terminal
FM
antenna
terminal
YELLOW BLACK
Fig. 6-6 Adjustment Point
