1-11-1
Servo/System Control Block Diagram
BLOCK DIAGRAMS <VCR SECTION>
MLOADING
MOTOR
CAPSTAN MOTOR
CONTROL
HEAD
AC HEAD
ASSEMBLY
MAIN CBA
KEY- 1
POWER-LED
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
7
(DECK ASSEMBLY)
T-REEL
Q515
RESET
Q506
SW-POINT
AL+5V
VR501
TIMER+5V
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
73
86 P-DOWN-L
OUTPUT-SELECT
SW506
TO VIDEO
BLOCK DIAGRAM
TO Hi-Fi AUDIO
BLOCK DIAGRAM
TO AUDIO
BLOCK DIAGRAM
11KEY-1
33
POWER-LED
CN509
D651
CN508
POWER SW CBA
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
58C-SYNC
DVD-POWER
C-SYNC
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)
A-MUTE-H
5
6
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q503
REC-SAFETY
END-S
CTL97
TP503
CTL
79
23
POWER
SW651
POWER
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-CONT77
AL+12V(1)
AL+12V(2)
P-ON+15V
P-ON+5V
1 AL+12V(1)
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
42
INPUT-SELECT
INPUT-SELECT
41
70
DVD-LED
VCR-LED
D503
VCR
D502
DVD
KEY SWITCH
" " = SMD
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
CN504
CL504
5 CTL(+)
6 CTL(-)
CYLINDER ASSEMBLY
DRUM
MOTOR
PG
SENSOR
M
OUTPUT-SELECT
KEY SWITCH
POWER-LED
24
DVD-LED
DVD-LED
62
63
VCR-LED
60
VCR-LED
61
64
59
H9723BLS
www.freeservicemanuals.info
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