Sharp DV-NC100H (serv.man7) Service Manual ▷ View online
1-11-1
Servo/System Control Block Diagram
H9741BLS
BLOCK DIAGRAMS <VCR SECTION>
M
LOADING
MOTOR
CAPSTAN MOTOR
CONTR
OL
HEAD
AC HEAD
ASSEMBLY
MAIN CBA
KEY- 1
ST-S
T-REEL
REMOTE-VIDEO
CTL(+)
RESET
REC-SAF-SW
PG-DELAY
CTL(-)
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
END-S
14
94
95
10
4
80
34
2
13
15
18
33
16
31
(DECK ASSEMBLY)
T-REEL
Q515
RESET
Q506
S-REEL
79
SW-POINT
AL+5V
VR501
TIMER+5V
S-REEL
PS502
TP502
KEY- 2
8
IIC-BUS SDA
IIC-BUS SDA
IIC-BUS SCL
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
Hi-Fi-H-SW
A-MODE
OUTPUT SELECT
A-MUTE-H
Hi-Fi-H-SW
A-MODE
H-A-COMP
17
V-ENV
6
P-ON-H
P-ON-H
P-DOWN-L
67
86
P-DOWN-L
OUTPUT-SELECT
SW506
TO VIDEO
BLOCK DIAGRAM
TO Hi-Fi AUDIO
BLOCK DIAGRAM
TO AUDIO
BLOCK DIAGRAM
SDA
SCL
IC502
(MEMORY)
72
32
19
83
IIC-BUS SCL
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
DVD-POWER
58
C-SYNC
C-SYNC
56
DAVN-L
DAVN-L
OUTPUT-SELECT
IIC-BUS SCL
71
LD-SW
REMOTE-VIDEO
9
AL+5V
AL+5V
SW507
LD-SW
AL+5V
D555
S-LED
TO POWER
SUPPLY BLOCK
DIAGRAM
TP501
SENS-INH
CAPSTAN
MOTOR
IC501
(SERVO/SYSTEM CONTROL)
LINE-MUTE
LINE-MUTE
28
5
6
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q503
REC-SAFETY
END-S
CTL
97
TP503
CTL
82
TO DVD SYSTEM
CONTROL BLOCK
DIAGRAM
<DVD SECTION>
TO DVD SYSTEM
CONTROL BLOCK
DIAGRAM
<DVD SECTION>
CN502
C-FG
C-CONT
D-PFG
C-F/R
90
76
87
78
LM-FWD/REV
81
D-CONT
77
AL+12V
AL+12V(2)
P-ON+15V
P-ON+5V
1
AL+12V
2
P-ON+5V
3
C-FG
4
C-F/R
5
C-CONT
6
GND
7
LM-FWD/REV
8
D-CONT
9
D-PFG
10
GND
11
AL+12V(2)
12
P-ON+15V
M
DRV-DATA
DRV-STB
DRV-CLK
DISPLAY-DATA
DISPLAY-STB
DISPLAY-CLK
68
69
21
70
DVD-LED
VCR-LED
Q508
Q509
29
30
D503
VCR
D502
DVD
AL+5V
POWER-LED
KEY SWITCH
CN504
CL504
2
CTL(+)
1
CTL(-)
INPUT-SELECT
INPUT-SELECT
41
DVD-POWER
7
11
KEY-1
33
POWER-LED
CN509
D651
CN508
AL+5V
POWER SW CBA
Q507
23
POWER
SW651
POWER
KEY SWITCH
REC-LED
TIMER-LED
26
25
Q511
D504
REC
Q502
D501
TIMER
SW511
RESET
CYLINDER ASSEMBLY
DRUM
MOTOR
PG
SENSOR
M
OUTPUT SELECT
1-11-2
Video Block Diagram
H9741BLV
IIC-B
US SD
A
D
A
VN-L
IIC-B
US SCL
CYLINDER ASSEMBLY
V(R)-1
V-COM
V(L)-1
CN251
1
2
3
(DECK ASSEMBLY)
VIDEO (R)-1
HEAD
SP
HEAD
AMP
EP
HEAD
AMP
REC FM
AGC
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
RF-SW
D-REC-H
C-ROTA
D-V-SYNC
H-A-SW
H-A-COMP
V-ENV
LUMINANCE
SIGNAL
PROCESS
CHROMINANCE
SIGNAL
PROCESS
V-ENV
H-A-COMP
H-A-SW
D-V-SYNC
RF-SW/C-ROTA
VIDEO (L)-1
HEAD
VIDEO (L)-2
HEAD
VIDEO (R)-2
HEAD
V(L)-2
V-COM
V(R)-2
4
5
6
TU701
IC301
(Y/C SIGNAL PROCESS)
REC-VIDEO SIGNAL
SERIAL
DECORDER
48
50
52
56
24
6
19
20
JK101
V-OUT1
V-IN1
61
63
96
95
94
93
90
89
88
87
CHARA.
INS.
CCD 1H DELAY
SP
BYPASS
MUTE
PB/EE
IN1
TUNER
IN1
TUNER
MUTE
PB/EE
FRT
IN2
FRT
IN2
AGC
P
R
R
Y
C
P
RP
R
P
EP
Y. DELAY
Y/C
MIX
+
21
79
78
AGC
VXO
FBC
1/2
58
59
65
29
28
69
68
46
43
84
83
71
62
70
D-REC-H
80
BUFFER
Q104
DVD
VCR
TP751
V-OUT
WF3
TU-VIDEO
VIDEO
MAIN CBA
54
TP504
RF-SW
WF1
OUTPUT-SELECT
DVD-VIDEO
TO SERVO/SYSTEM
CONTROL BLOCK DIAGRAM
C-SYNC
C-SYNC
67
IC751
(OUTPUT SELECT)
4
3
5
11
10
9
9
SW CTL
(TUNER UNIT)
MODE: SP/REC
PB-VIDEO SIGNAL
DVD VIDEO SIGNAL
V
-OUT2
8
V
-IN2
8
10
10
JACK-A CBA
19
20
JK1402
V-OUT2
V-IN2
CN2017
CN2018
BUFFER
Q103
JK752
V-IN
TO DVD
VIDEO/AUDIO
BLOCK DIAGRAM
<DVD SECTION>
FR
ONT
TO
SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
SW CTL
INPUT-SELECT
3
IC1404
(INPUT SELECT)
5
9
4
IC631
(VPS)
VPS-V
IIC-B
US SD
A
IIC-B
US SCL
6
D
A
VN-L
14
7
16
IC501
(OSD)
50
52
OSD
CHARACTER
MIX
TP301
C-PB
WF2
X301
4.43MHz
1-11-3
Audio Block Diagram
H9741BLA
REC
AMP
100
3
AU
T
O
BIAS
2
1
+5V
+5V
Q404
Q406
BIAS
OSC
Q403
N-A-PB
T
O
Hi-Fi A
UDIO
BLOCK DIGRAM
N-A-REC
Q401
(PB=ON)
Q405
SWITCHING
D-REC-OFF
5
EQ
AMP
9
8
7
LINE
AMP
REC-ON
A
U
DIO HD-SW
CONTR
O
L
MUTE
11
6
PB-ON
SP/LP-ON
P
TUNER
IN2
IN1
R
ALC
DET
ALC
IC301
(A
UDIO SIGNAL PR
OCESS)
15
13
17
4
A-PB/REC
CN504
3
A-COM
1
AE-H
2
AE-H/FE-H
AU
D
IO
HEAD
AU
D
IO
ERASE
HEAD
A
C
HEAD ASSEMBL
Y
FE HEAD
2
FE-H
1
FE-H-GND
CN501
MAIN CB
A
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
Mode : SP/REC
71
A-MUTE-H
IIC-B
US SCL
IIC-B
US SD
A
T
O
SER
V
O/SYSTEM
CONTR
OL BLOCK
DIA
GRAM
FULL
ERASE
HEAD
68
69
SERIAL
DECODER
(DECK ASSEMBLY)
12
16
INV
AT
T
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
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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