Pioneer XR-A390 Servis Kılavuzu - Sayfa 20
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5. ADJUSTMENT
Note : Adjustment of XR-A390 are the same as those of XR-A4800 except for the following:
A
FM Tuner Section
• Set the mode selector to FM BAND.
• Connect the wiring as shown in Fig. 1.
Step
Adjustment
No.
Title
Front End
1
Sensitivity
B
TUNED IND.
2
Lighting Level
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.
AM Tuner Section
• Set the mode selector to AM BAND.
• Connect the wiring as shown in Fig. 1.
Step
Adjustment
No.
Title
C
Front End
1
Sensitivity
Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.
D
FM/AM TUNER MODULE
E
AM
antenna
terminal
FM
antenna
terminal
F
20
1
2
FM SG (1kHz, ± 75kHz dev.)
Frequency
Level
(MHz)
(dBµV)
98
0 to 30
18 ± 2
98
AM SG (400Hz, 30% Mod.)
Frequency
Level
(kHz)
(dBµV/m)
999 (∗1)
35 to 45
60cm
AM SG
Center
MPX SG
FM SG
FM75Ω antenna terminal
Fig.1 AM and FM Adjustment Wiring Diagram
SIDE A
YELLOW
BLACK
AXX7041
L6401
Fig.2 Adjustment Point
2
3
Reception
Adjustment
Frequency
Location
Display
L6402
98MHz
T6401
98MHz
VR6201
Reception
Adjustment
Frequency
Location
Display
T6201
999kHz (∗1)
Loop antenna
AM antenna terminal
Center
PRODUCT
T6401
XR-A390
3
4
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes to maximum
level.
Adjust so that the indicator of TUNED IND.
strats to light up.
Specifications
Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes to maximum
level.
DC
Voltmeter
T6201
IC6201
Pin 20
VR6201
4