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KD-S7350
JVC KD-S7350 User Manual
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KD-S7350/KD-S690
1-30 (No.49778)
4.3
TA2157FN (IC501) : RF amp
•
Pin layout
•
Block diagram
24 ~ 13
1 ~ 12
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
18
19
20
21
22
23
24
20k 20k
15k
20k
20k
3k
180k
240k
240k
15pF
15pF
40pF
40pF
10pF
60k
60k
22k
22k
94k
94k
14k
50k
20k
20k
20k
40k
50k
PEAK
15k
40k
2k
1.75k
1.3V
2k
1k
180k
3k
12k
12k
20k
40k
30k
10pF
50
A
BOTTOM
PEAK
K
1
x0.5
x2
x0.5
x2
PIN
SEL
(APC SW)
TEB
(TE BAL)
TEB
(TE BAL)
RFGC
(AGC Gian)
VCTRLPIN
VCC
HiZ
GND
-50%
0%
+50%
+12dB
+6dB
0dB
Normal mode
(0dB)
Normal mode
(0dB)
CD-RW mode
(+12dB)
APC ON
APC ON
APC OFF
(LDO=H)
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
29
31
Table of Contents
49778.pdf
1
SECTION 1
2
1.1 Safety Precautions
2
1.2 Preventing static electricity
3
1.2.1 Grounding to prevent damage by 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 section
4
2.1.1 Removing the front panel assembly (See Fig.
4
2.1.2 Removing the front chassis assembly (See Figs.
4
2.1.3 Removing the heat sink (See Fig.
5
2.1.4 Removing the bottom cover (See Figs.
5
2.1.5 Removing the rear bracket (See Fig.
5
2.1.6 Removing the main board assembly (See Fig.
6
2.1.7 Removing the CD mechanism assembly (See Fig.
6
2.1.8 Removing the front board (See Figs.
7
2.2 CD Mechanism Assembly
8
2.2.1 Removing the top cover (See Figs.
8
2.2.2 Removing the connector board (See Figs.
9
2.2.3 Removing the DET switch (See Figs.
10
2.2.4 Removing the chassis unit (See Figs.
11
2.2.5 Removing the clamper assembly (See Figs.
12
2.2.6 Removing the loading / feed motor assembly (See Figs.
13
2.2.7 Removing the pickup unit (See Figs.
14
2.2.8 Reattaching the pickup unit (See Figs.
14
2.2.9 Removing the trigger arm (See Figs.
15
2.2.10 Removing the top plate assembly (See Fig.
15
2.2.11 Removing the mode sw. / select lock arm (See Figs.
16
2.2.12 Reassembling the mode sw. / select lock arm (See Figs.
17
2.2.13 Removing the select arm R / link plate (See Figs.
18
2.2.14 Reattaching the Select arm R / link plate (See Figs.
18
2.2.15 Removing the loading roller assembly (See Figs.
19
2.2.16 Removing the loading gear 5, 6 and 7 (See Figs.
20
2.2.17 Removing the gears (See Figs.
21
2.2.18 Removing the turn table / spindle motor (See Figs.
22
SECTION 3
23
3.1 Adjustment method
23
3.2 Troubleshooting
24
3.2.1 Feed section
24
3.2.2 Focus section
24
3.2.3 Spindle section
24
3.2.4 Tracking section
24
3.2.5 Signal processing section
25
3.3 Maintenance of laser pickup
26
3.4 Replacement of laser pickup
26
SECTION 4
27
4.1 HA17558F (IC571) : Ope. amp.
27
4.2 LA6579H (IC561) : 4-Channel bridge driver
28
4.3 TA2157FN (IC501) : RF amp
30
4.4 TC94A14FA (IC521) : DSP & DAC
32
4.5 UPD178078GF-592 (IC701) : System CPU
34
4.6 RPM6938-SV4 (IC602) : Remote control receiver
36
p49778sch.pdf
39
Cover
39
Block diagram
41
Standard schematic diagrams
42
Printed circuit boards
48
Back cover
50
49778par.pdf
51
Cover
51
Exploded view of general assembly and parts list (Block No. M1)
52
CD mechanism assembly and parts list (Block No. MB)
55
Electrical parts list (Block No. 02)
58
Packing materials and accessories parts list (Block No. M3,M5)
64
4
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JVC KD-S7350 Specifications
General
Brand
JVC
Model
KD-S7350
Category
Car Receiver
Language
English
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