HTZ-7, HTZ-C7, HTZ-SW7, HTZ-ST7
100
6.2 TUNER SECTION
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
FM/AM TUNER MODULE (AXQ7058)
AXX7042
L6101
L6102
L6103
L6104
L6105
T6101
T6201
VR6201
AM
antenna
terminal
FM
antenna
terminal
YELLOW BLACK
Fig. 2 Adjustment Point
6.2.1 FM TUNER SECTION
Set the mode selector to FM BAND.
Connect the wiring as shown in Fig. 1.
6.2.2 AM TUNER SECTION
Set the mode selector to AM BAND.
Connect the wiring as shown in Fig. 1.
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
