DV-NC100H. Cover, Contents, , Laser beam safety precautions, Important safeguards and precautions, Standard notes for servicing, Preparation for servicing, Operating controls and functions, Cabinet disassembly instructions, Electrical adjustment instructions, Firmware renewal mode, Troubleshooting, Block diagrams, Function indicator symbols, Main Schematic diagram 1 9. - Sharp DVD Service Manual (repair manual). Page 40

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1-11-4
H9741BLH
Hi-Fi Audio Block Diagram
48
47
61
71
62
70
14
15
78
R-CH
INSEL
L-CH
INSEL
IF SINAL
PROCESS
NOR
SW
SERIAL
DATA
DECODER
OUTPUT
SELECT
VCO
LPF
L-CH
BPF
R-CH
PNR
L-CH
PNR
LIM
DEV
COMP
SW 
NOISE
VCO
LPF
LIM
DEV
COMP
COMP
SW 
NOISE
ENV
DET
DO
DET
MIX
R-CH
BPF
P
R
R
L
P
R
HOLD
PULSE
NOISE
DET
34
33
21
76
77
74
37
38
39
75
73
26
53
24
27
N-A-REC
LIM
80
N-A-PB
Hi-Fi-H-SW
LINE-MUTE
A-MODE
TO AUDIO 
BLOCK DIAGRAM
IIC-BUS SDA
IIC-BUS SCL
TO 
SERVO/ SYSTEM
CONTROL BLOCK
DIAGRAM
TO 
SERVO/ SYSTEM
CONTROL BLOCK
DIAGRAM
MAIN CBA
Hi-Fi-
A(R)
7
Hi-Fi
-COM
8
Hi-Fi-
A(L)
9
CN251
IC451
(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
REC-AUDIO SIGNAL
PB-AUDIO SIGNAL
Mode : SP/REC
DVD AUDIO SIGNAL
AFV CBA
JK101
A-OUT1(R)
A-OUT1(L)
2
6
2
6
1
3
1
3
JK1402
A-IN2(R)
A-IN2(L)
A-IN1(R)
A-IN1(L)
A-OUT2(R)
A-OUT2(L)
TU-A
UDIO(R)
4
TU-A
UDIO(L)
5
4
5
CN701
CN1
SIF
2
2
CN701
CN1
TU701
(TUNER UNIT)
SIF
AUDIO
22
2
ALC
SW
SW
ALC
67
65
Q451
MUTE-ON
MUTE-ON
REAR
TO DVD VIDEO/AUDIO
BLOCK DIAGRAM
<DVD SECTION>
FRONT
JK751
Q753
Q754
A-OUT(R)
A-OUT(L)
JK754
A-IN(R)
JK753
A-IN(L)
IC751
(OUTPUT SELECT)
TP401
JK1-A-OUT(L)
12
13
14
15
2
1
11
10
9
SW CTL
BUFFER
BUFFER
Q107
Q108
VCR
DVD
VCR
DVD
OUTPUT-SELECT
DVD-A-OUT(R)
DVD-A-OUT(L)
TO DVD AUDIO
BLOCK DIAGRAM
<DVD SECTION>
50
60
58
2
52
56
6
10
4
12
54
8
JACK-A CBA
A-IN2(R)
4
A-IN2(L)
5
4
5
A-OUT2(R)
1
A-OUT2(L)
2
1
2
CN2017
CN2018
Hi-Fi 
AUDIO
(R)  
HEAD
Hi-Fi 
AUDIO
(L)  
HEAD
CYLINDER
ASSEMBLY
 (DECK ASSEMBLY)
A-MUTE(L)
A-MUTE(R)

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