XR-A330SW, XR-A330EE
13
4. ADJUSTMENT
Note : Adjustment of XR-A330SW/DDXJ are the same as those of XR-A330/DXJ/NC except for the following:
Step No.
Adjustment
Title
Reception
Frequency
Display
Specifications
Adjustment
Location
Frequency
(MHz)
Input Level
(dBµV/EMF)
1
AM Front End
Sensitivity
Adjustment
AM SG (400Hz, 30% Mod.)
AM Tuner SW Section
Set the mode selector to SW2.
Connect the wiring as shown in Fig. 1.
L6303
14MHz
14
25-35
Adjust so that the DC voltage between the
IC6201-Pin 20 and GND becomes at maximum
level.
Befor adjustment, connect AM-ANT. and IEC-dummy ANT.. Signal input is through IEC-dummy ANT.. Connecting AM-ANT. follows Fig. 1.
AM SG
400pF
320
Ω
20
µ
H
125pF
R
IEC dummy
R is 30
Ω
when SG output is 50
Ω
, 5
Ω
when SG output is 75
Ω
.
PRODUCT
AM antenna terminal
DC
voltmeter
FM/AM TUNER MODULE (AXQ7062)
L6402
L6401
T6401
T6201
VR6201
AM
antenna
terminal
FM
antenna
terminal
YELLOW BLACK
L6303
GRAY BLACK
Fig. 2 Adjustment points
Fig. 1 SW adjustment wiring diagram
4.1 ADJUSTMENT FOR XR-A330SW
