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KD-LH3150
JVC KD-LH3150 Service Manual
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KD-LH3150, KD-L
H3100
(No.49838)1-33
4.8
HD74HC126FP-X (IC781) : Buffer
•P
i
n
l
a
y
o
u
t
•P
i
n
f
u
n
c
t
i
o
n
Note:
H:High level
L:Low leve
l
X:Irrelevant
Z:Off(High-impedance)
State a 3-state input
•
Block diag
ram
Note:
CL includes probe
and jig capacitance
1
2
3
4
5
6
7
1C
1A
1Y
2C
2A
2Y
GND
VCC
4C
4A
4Y
3C
3A
3Y
14
13
12
11
10
9
8
Input
Output
CA
Y
LX
Z
HL
H
HH
L
Vcc
Vcc
Input
See Function T
able
1A
2A
3A
4A
1C
2C
3C
4C
1Y
2Y
3Y
4Y
Output
Output
Output
Output
Sample as Load Circuit 1
Sample as Load Circuit 1
Sample as Load Circuit 1
1k
1k
S1
CL
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
32
34
Table of Contents
49838.pdf
1
SECTION 1
2
1.1 Safety Precautions
2
1.2 Preventing static electricity
3
1.3 Handling the traverse unit (optical pickup)
3
1.4 Attention when traverse unit is decomposed
3
SECTION 2
4
2.1 Main body
4
2.2 CD Mechanism section
8
SECTION 3
23
3.1 Adjustment method
23
3.2 Flow of functional operation unit TOC read
24
3.3 Maintenance of laser pickup
26
3.4 Replacement of laser pickup
26
SECTION 4
27
4.1 BA3220FV-X (IC281, IC301) : Line out amplifier
27
4.2 BA5830FP-X (IC681) : Power driver
28
4.3 BR24C01AFV-W-X (IC502) : EEPROM
29
4.4 BR24C16F-X (IC703) : EEPROM
30
4.5 BU4066BCFV-X (IC131) : Quad analog switch
31
4.6 RPM6938-SV4 (IC805) : Remote control receiver
31
4.7 HA13164A (IC901) : Regulator
32
4.8 HD74HC126FP-X (IC781) : Buffer
33
4.9 HD74HCT126T-X (IC503) : Buffer
34
4.10 IC-PST3424U-X (IC803) : Reset
35
4.11 IC-PST9333U-X (IC702) : Regulator
35
4.12 LA47505 (IC951) : Power amp.
36
4.13 LH28F160BJHET92 (IC802) : 16M flash memory
38
4.14 MN102H60KCG (IC801) : LCD display sub CPU
40
4.15 M62449FP-X (IC912) : Equalizer
42
4.16 NJM2360AM-X (IC921) : DC-DC convertor
43
4.17 NJM4565V-X (IC132, IC572) : Dual operational amplifier
43
4.18 NJU7241F25-X (IC651) : Regulator
44
4.19 NJU7241F33-X (IC504, IC804) : Voltage regulator
44
4.20 PCM1716E-X (IC571) : D/A converter
45
4.21 TA2157FN-X (IC601) : RF amp
46
4.22 TC94A14FA (IC621) : DSP & DAC
48
4.23 TC94A20F-008 (IC652) : Audio digital processor with DAC and SRAM
50
4.24 TDA7404D-X (IC911) : Car radio signal processor
53
4.25 TMP91CW12AF4NB1 (IC501) : CPU
54
4.26 UPD784217AGC205 (IC701) : CPU
58
p49838sch.pdf
61
Cover
61
Block diagram
63
Standard schematic diagrams
64
Printed circuit boards
70
Back cover
74
49838par.pdf
75
Cover
75
Exploded view of general assembly and parts list (Block No.M1)
76
General assembly
77
CD mechanism assembly and parts list (Block No.MB)
78
CD mechanism
79
Electrical parts list (Block No.01~03)
80
Main board
80
Front board
83
Sub board
85
Packing materials and accessories parts list (Block No.M3)
88
Packing and accessories
89
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JVC KD-LH3150 Specifications
General
Brand
JVC
Model
KD-LH3150
Category
Car Receiver
Language
English
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