Sharp DV-NC100S, Service Manual

Page: 37 / 126

1-11-1
Servo/System Control Block Diagram
H9740BLS
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 C-POW -SW
P-ON-H C-POW-SW P-DOWN-L
67 66 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+20.5V/+12V AL+12V(2) P-ON+15V
P-ON+5V
1
AL+20.5V/+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