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4. ADJUSTMENT
4.1 ADJUSTMENT FOR XR-A660SW
Note : Adjustment of XR-A660SW/DDXJ are the same as those of XR-A660/DLXJNC except for the following:
AM Tuner SW Section
Set the mode selector to SW2.
Connect the wiring as shown in Fig. 1.
Adjustment
Step No.
Title
AM Front End
1
Sensitivity
Adjustment
Befor adjustment, connect AM-ANT. and IEC-dummy ANT.. Signal input is through IEC-dummy ANT.. Connecting AM-ANT. follows Fig. 1.
AM SG
R is 30Ω when SG output is 50Ω, 5Ω when SG output is 75Ω.
FM/AM TUNER MODULE (AXQ7062)
AM
antenna
terminal
FM
antenna
terminal
AM SG (400Hz, 30% Mod.)
Frequency
Input Level
(MHz)
(dBµV/EMF)
14
25-35
AM antenna terminal
IEC dummy
400pF
R
125pF
20µH
Fig. 1 SW adjustment wiring diagram
L6303
GRAY
BLACK
YELLOW
BLACK
T6401
L6401
Fig. 2 Adjustment points
XR-A660SW, XR-A660EE
Reception
Adjustment
Frequency
Location
Display
Adjust so that the DC voltage between the
14MHz
L6303
IC6201-Pin 20 and GND becomes at maximum
level.
320Ω
PRODUCT
T6201
Specifications
DC
voltmeter
VR6201
11
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