Pioneer XR-A390 Panduan Servis - Halaman 24
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Halaman CetakXR-A790, XR-A390
5. ADJUSTMENT
Note : Adjustment of XR-A790 are the same as those of XR-A6800 except for the following:
Adjustment of XR-A390 are the same as those of XR-A4800 except for the following:
FM Tuner Section
• Set the mode selector to FM BAND.
• Connect the wiring as shown in Fig. 1.
FM SG (1kHz, ± 75kHz dev.)
Step
Adjustment
Frequency
No.
Title
Front End
1
Sensitivity
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.
AM SG (400Hz, 30% Mod.)
Step
Adjustment
Frequency
No.
Title
Front End
1
Sensitivity
Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.
AM SG
MPX SG
FM/AM TUNER MODULE
AM
antenna
terminal
FM
antenna
terminal
24
Level
(MHz)
(dBµV)
98
0 to 30
18 ± 2
98
Level
(kHz)
(dBµV/m)
999 (∗1)
35 to 45
60cm
Center
Center
FM SG
FM75Ω antenna terminal
Fig.1 AM and FM Adjustment Wiring Diagram
SIDE A
YELLOW
BLACK
AXX7041
T6401
L6401
Fig.2 Adjustment Point
Reception
Adjustment
Frequency
Location
Display
Adjust so that the DC voltage between the
L6402
98MHz
IC6201 - pin 20 and GND becomes at maximum
T6401
level.
Adjust so that the indicator of TUNED IND.
98MHz
VR6201
strats to light up.
Reception
Adjustment
Frequency
Location
Display
Adjust so that the DC voltage between the
T6201
999kHz (∗1)
IC6201 - pin 20 and GND becomes at maximum
level.
Loop antenna
AM antenna terminal
PRODUCT
T6201
Specifications
Specifications
DC
Voltmeter
IC6201
Pin 20
VR6201