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SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
No.49812
2003/02
KS-FX483R,KS-FX480R,KS-FX43R
CASSETTE RECEIVER
49812
2003
02
KS-FX483R,KS-FX480R,
KS-FX43R
TABLE OF CONTENTS
1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2
Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3
Adjustment method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4
Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Area Suffix
E -------- Continental Europe
EX ------------ Central Europe
SEL
TP/PTY
DISP
SSM
SCM
MO/RND
7
9
10
12
11
8
CD-
CH
AM
FM
CD CHANGER CONTROL
Model
KS-FX483R
KS-FX480R
KS-FX43R
STEERING REMOTE
Not Provided
Not provided
provided


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KS-FX483R,KS-FX480R,KS-FX43R
1-2 (No.49812)
SECTION 1
Important Safety Precautions
1.1 Safety Precautions
!
Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.


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KS-FX483R,KS-FX480R,KS-FX43R
(No.49812)1-3
SECTION 2
Disassembly method
2.1 Main body
2.1.1 Removing the front panel assembly
(See Fig.1)
(1) Press the release button and remove the front panel as-
sembly.
Fig.1
2.1.2 Removing the bottom cover
(See Fig.2)
· Prior to performing the following procedure, remove the front
panel assembly.
(1) Turn the body upside down.
(2) Insert a screwdriver under the joints to release the two
joints a on the left side, the two joints b on the right side and
the joint c on the back of the body, then remove the bottom
cover from the body.
CAUTION:
When releasing the joint c using a screwdriver, do not
damage the main board.
Fig.2
2.1.3 Removing the front chassis
(See Fig.3)
· Prior to performing the following procedure, remove the front
panel assembly and bottom cover.
(1) Remove the screw A on each side of the body.
(2) Release the two joints d and two joints e on the sides, then
remove the front chassis toward the front.
Fig.3
Front panel assembly
Release button
Bottom cover
Joint b
Joint b
Joint c
Joint a
Joint a
Joint d
Front chassis
A
Joint e
Joint d
Joint e


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KS-FX483R,KS-FX480R,KS-FX43R
1-4 (No.49812)
2.1.4
Removing the heat sink
(See Fig.4)
· Prior to performing the following procedure, remove the front
panel assembly.
(1) Remove the two screws B and two screws C attaching the
heat sink on the left side of the body, and remove the heat
sink.
Fig.4
2.1.5
Removing the rear panel
(See Fig.5 )
· Prior to performing the following procedure, remove the front
panel assembly and bottom cover.
(1) Remove the two screws D, two screws E and screw F at-
taching the rear panel on the back of the body.
Reference:
During reassembly, before fixing the rear panel onto the main
body, insert the ST remote wire into the slot. (For KS-FX43R
only)
Fig.5
2.1.6
Removing the main board
(See Fig.6)
· Prior to performing the following procedure, remove the front
panel assembly, bottom cover, front chassis, heat sink and
rear panel.
(1) Remove the two screws G attaching the main board on the
top chassis.
(2) Disconnect the two connectors CN901 and CN902 on the
main board from the cassette mechanism assembly.
Fig.6
Heat sink
CB
C
D
F
E
D
Insert ST remote cable
into the slot (KS-FX43R only)
G
G
Main board
CN901
ST remote cable
(KS-FS43R only)
CN902


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KS-FX483R,KS-FX480R,KS-FX43R
(No.49812)1-5
2.1.7 Removing the cassette mechanism assembly
(See Fig.7)
· Prior to performing the following procedure, remove the front
panel assembly, bottom cover, front chassis, heat sink, rear
panel and main board.
(1) Remove the four screws H attaching the cassette mecha-
nism assembly on the top chassis.
Fig.7
2.1.8 Removing the head amplifier board
(See Fig.8)
· Prior to performing the following procedure, remove the front
panel assembly, bottom cover, front chassis, heat sink, rear
panel, main board and cassette mechanism assembly.
(1) Disconnect the wire from CJ901 on the head amplifier
board.
(2) Remove the screw J attaching the head amplifier board.
(3) Move the head amplifier board in the direction of the arrow
to release the two joints f, the head amplifier board can be
removed.
Fig.8
H
H
H
H
Top chassis
Cassette mechanism assembly
joint f
J
CJ901
Head amplifier board
To head relay board
joint f