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5. ADJUSTMENT
Note: Adjustment of MYXK, NVXK and YPWXJ types are the same as those of base model except for the following.
5.1 FM/AM TUNER MODULE (AXQ7077: MYXK and NVXK types only)
7 FM Tuner Section
÷ Set the mode selector to FM BAND.
÷ Connect the wiring as shown in Fig. 1.
Adjustment
Step No.
Title
Front End
1
Sensitivity
Stereo
2
Distortion
TUNED IND.
3
Lighting Level
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.
7 AM Tuner Section
÷ Set the mode selector to AM BAND.
÷ Connect the wiring as shown in Fig. 1.
Adjustment
Step No.
Title
Front End
1
Sensitivity
*1: For the area using 10kHz step, frequencies should be 1000 kHz.
AM SG
MPX SG
FM SG (1kHz, ±75kHz dev.) Reception
Frequency
Level
(MHz)
(dBµV)
0 to 30
106
98
80
(ON STEREO)
98
18 ± 2
AM SG (400Hz, 30% Mod.)
Frequency
Level
(kHz)
(dBµV/m)
999 *
1
35 to 45
60cm
Center
FM SG
FM75Ω antenna terminal
Fig. 1
AM and FM Adjustment Wiring Diagram
Adjustment
Frequency
Location
Display
L6104
Adjust so that the DC voltage between the IC6201-
L6105
106 MHz
Pin 20 and GND becomes at maximum level.
L6102
T6101
Minimize the distortion with 1/8 rotation of the
98 MHz
T6101
core.
Adjust so that the indicator of TUNED IND. starts
98 MHz
VR6201
to light up.
Reception
Adjustment
Frequency
Location
Display
Adjust so that the DC voltage between the IC6201-
999kHz *
1
T6201
Pin 20 and GND becomes at maximum level.
Loop antenna
AM antenna terminal
Center
PRODUCT
XR-A100, XR-A100-K
Specifications
Specifications
DC
Voltmeter
27
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