Block Diagrams; Servo/System Control Block Diagram - Hitachi DVPF2E Service Manual

BLOCK DIAGRAMS < VCR SECTION >

Servo/System Control Block Diagram

(DECK ASSEMBLY)
AC HEAD ASSEMBLY
CL287
CONTROL 5 CTL(+) 5
HEAD
6 CTL(-) 6
Q504
ST-S
SENSOR CBA
Q503
END-S
SENSOR CBA
CYLINDER ASSEMBLY CAPSTAN MOTOR
PG
SENSOR CAPSTAN
MOTOR
DRUM
M
MOTOR
M
LOADING
MOTOR
4-2-1
AL+5V
SW507
LD-SW
D555
S-LED
CL504 AL+5V
TP502
END-S
Q506 PS502
T-REEL S-REEL
TIMER+5V
TO DVD SYSTEM
CONTROL BLOCK
<DVD SECTION>
CL502
12 C-F/R
M
11 AL+15V/+12V
10 AL+12V(1)
9 P-ON+5V
8 GND
7 C-FG
6 C-CONT
5 GND
4 D-FG
3 LM-FWD/REV
2 D-CONT
1 D-PG
TO
POWER
SUPPLY
BLOCK
IC501
MAIN CBA (SERVO/SYSTEM CONTROL)
POWER LED
CAS LED
9 LD-SW TIMER LED
95 CTL(+)
94 CTL(-)
10 ST-S
4 END-S
80 T-REEL
79 S-REEL
Q515
RESET 34 RESET
REMOTE1
14 REMOCON-IN
REC LED
TP503
DVD LED
CTL
Q510
VCR LED
97 CTL
84 FF/REW-L
AL+5V
VR501
2 PG-DELAY
SW-POINT
A-MUTE-H
AL+5V
31 REC-SAF-SW
SW506
Hi-Fi-H-SW
REC-SAFETY
78 C-F/R
AL+15V/+12V
AL+12V(1) IIC-BUS SDA
P-ON+5V IIC-BUS SCL
87 C-FG D-REC-H
76 C-CONT
89 D-FG D-V SYNC
LM-FWD/REV
81
77 D-CONT H-A-COMP
90 D-PG
OUTPUT SELECT
C-POW-SW
66 C-POW-SW
P-ON-H
67 P-ON-H
P-DOWN-L
86 P-DOWN-L
CN505
KEY- 2 8 2 KEY-2
Q507
23 6 POWER-LED
Q501
24 4 CAS-LED
Q502
25 5 TIMER-LED
KEY
KEY- 1 7
SWITCH
TP501
SENS-INH
AL+5V
REC
Q511 D508
26
DVD
Q508 D506
29
VCR
Q509 D507
30
83
19
A-MODE 61
72
71
DAVN-L 20
65
RF-SW 18
C-ROTA
15
13
H-A-SW
16
17
V-ENV 6
74
FRONT JACK CBA
CN651
2 KEY SWITCH
6
AL+5V
4
POWER
5 D651
CAS
D653
TIMER
D652
STAND-BY
D654
IC502 (MEMORY)
5 SDA
6 SCL
IIC-BUS SDA
IIC-BUS SCL TO
AUDIO BLOCK
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
TO
Hi-Fi-H-SW
Hi-Fi AUDIO
A-MODE
BLOCK
OUTPUT SELECT
IIC-BUS SDA
IIC-BUS SCL
DAVN-L
D-REC-H
RF-SW
C-ROTA
TO
VIDEO BLOCK
D-V SYNC
H-A-SW
H-A-COMP
V-ENV
OUTPUT SELECT