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KS-FX483R
JVC KS-FX483R Service Manual
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KS-FX483R,KS-FX480R,KS-FX43R
1-22 (No.49812)
4.7
TEA6320T-X (IC911) : E.volume
•
Pin layout
•
Block diagram
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
SDA
GND
OUTLR
OUTLF
TL
B2L
B1L
IVL
ILL
QSL
IDL
MUTE
ICL
IMD
IBL
IAL
SCL
VCC
OUTRR
OUTRF
TR
B2R
B1R
IVR
ILR
QSR
IDR
V
ref
ICR
CAP
IBR
IAR
CD-CH
T
APE
TUNER
POWER
SUPPL
Y
SOURCE
SELECTOR
VOLUME 1
+20 to -31 dB
LOUDNESS
LEFT
BASS
LEFT
+15 dB
TREBLE
LEFT
+12 dB
BASS
RIGHT
+15 dB
TREBLE
RIGHT
+12 dB
MUTE
FUNCTION
ZERO CROSS
DETECTOR
VOLUME 2
0 to 55 dB
BALANCE
FENDER REAR
VOLUME 2
0 to 55 dB
BALANCE
FENDER FRONT
HC BUS
REC
VOLUME 2
0 to -55dB
BALANCE
FENDER FRONT
VOLUME 2
0 to -55dB
BALANCE
FENDER REAR
VOLUME 1
+20 to -31 dB
LOUDNESS
RIGHT
LOGIC
21
31
2
19
16
15
13
11
22
20
18
17
14
23
25
24
26
27
28
30
29
1
32
3
4
10
8
9
7
6
5
12
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
21
23
Table of Contents
49812.pdf
1
SECTION 1
2
1.1 Safety Precautions
2
SECTION 2
3
2.1 Main body
3
2.1.1 Removing the front panel assembly (See Fig.
3
2.1.2 Removing the bottom cover (See Fig.
3
2.1.3 Removing the front chassis (See Fig.
3
2.1.4 Removing the heat sink (See Fig.
4
2.1.5 Removing the rear panel (See Fig.
4
2.1.6 Removing the main board (See Fig.
4
2.1.7 Removing the cassette mechanism assembly (See Fig.
5
2.1.8 Removing the head amplifier board (See Fig.
5
2.1.9 Removing the relay board (See Fig.
6
2.1.10 Removing the mecha bracket (See Fig.
6
2.1.11 Removing the switch (LCD & key) board (See Fig.
7
2.2 Cassette mechanism assembly
8
2.2.1 Removing the direction switch board (See Fig.
8
2.2.2 Removing the FF / REW lever assembly (See Fig.
8
2.2.3 Reattaching the FF / REW lever assembly (See Fig.
8
2.2.4 Removing the playback head (See Fig.
8
2.2.5 Removing the pinch-roller (R) and (F) assembly (See Fig.
8
2.2.6 Removing the cassette hanger / cassette holder (See Fig.
9
2.2.7 Removing the reel disc assembly (See Fig.
9
2.2.8 Removing the motor assembly (See Fig.
9
2.2.9 Removing the Flywheel (BF) and (BR) assembly (See Fig.
10
2.2.10 Removing the reel base assembly (See Fig.
10
2.2.11 Removing the mute switch board (See Fig.
11
2.2.12 Removing the power switch (See Fig.
11
SECTION 3
12
SECTION 4
16
4.1 AN80T05LF (IC961) : Regulator
16
4.2 HD74HC126FP-X (IC751) : Buffer
17
4.3 UPC1228HA (IC901) : Head amp
17
4.4 LA4743K (IC941) : Power amp.
18
4.5 LC75823W (IC651) : LCD driver
20
4.6 SAA6579T-X(IC761): RDS detecter
21
4.7 TEA6320T-X (IC911) : E.volume
22
4.8 UPD178078GF-595 (IC701): System CPU
24
49812sch.pdf
27
Cover
27
Block diagram
29
Standard schematic diagrams
30
Printed circuit boards
33
Back cover
36
49812par.pdf
37
Cover
37
Exploded view of general assembly and parts list (Block No. M1)
38
Cassette mechanism assembly and parts list (Block No. MP)
41
Electrical parts list (Block No. 01~03)
46
Packing materials and accessories parts list (Block No. M3,M5)
52
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Instructions
114 pages
4
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JVC KS-FX483R Specifications
General
Brand
JVC
Model
KS-FX483R
Category
Stereo Receiver
Language
English
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