Block Diagrams; Servo/System Control Block Diagram - Hitachi DV-PF73U Service Manual

6 BLOCK DIAGRAMS

6-1 Servo/System Control Block Diagram

(DECK ASSEMBLY)
AC HEAD ASSEMBLY
CONTROL 5 CTL(+)
HEAD
6 CTL(-)
CYLINDER ASSEMBLY
PG
SENSOR
DRUM
M
MOTOR
M
LOADING
MOTOR
24
MAIN CBA
AL+5V
FROM/TO DVD SYSTEM
CONTROL BLOCK
DIAGRAM
<DVD SECTION>
D555
S-LED
CN504
CL504
TP506
ST-S
Q504
ST-S
SENSOR CBA
Q503
END-S
SENSOR CBA
CAPSTAN MOTOR
CL502
1 AL+12V
CAPSTAN
M
2 P-ON+5V
MOTOR
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
12 AL+15V
IC501
(SERVO/SYSTEM CONTROL)
REMOTE-VIDEO 5 REMOTE-VIDEO
DISPLAY-CLK 6 DISPLAY-CLK
DISPLAY-DATA 8 DISPLAY-DATA
DISPLAY-ENA 9 DISPLAY-ENA
TP513
CTL
58 CTL
56 CTL(+)
57 CTL(-)
SW512
AL+5V
LD-SW
68 LD-SW
TP505 TP507
T-REEL END-S
69 ST-S
62 END-S
3 T-REEL
Q506
Q501
T-REEL
TIMER+5V RESET 20 RESET
AL+5V
VR501
65 PG-DELAY
SW-POINT
REC-
AL+5V 2
SAF-SW
SW511
REC SW
AL+12V
P-ON+5V
49 C-FG
27 C-F/R
28 C-CONT
LM-FWD/REV
21
29 D-CONT
47 D-PFG
AL+12V
AL+15V
P-ON+9V
CL509
1 POWER-LED
KEY
KEY- 1 67 2 KEY-1
SWITCH
TP502
S-INH
KEY
KEY- 2 66
SWITCH
AL+5V
Q565
REC-IND 72
Q563
TIMER-IND 75
Q566
VCR-IND 70
Q567
DVD-IND 71
DVD-POWER 26
TU701(TUNER UNIT)
11
12
VCR/TV 77 5
IIC-BUS SCL 13
IIC-BUS SDA 12
Hi-Fi-H-SW 25
Hi-Fi/NOR-IN 59
ST/SAP-IN 61
A-MUTE-H 7
D-REC-H 24
OUTPUT-SELECT
D-PB-L 23
INSEL/ST-SL 16
C-SYNC 41
D-V SYNC 19
V-ENV 64
C-ROTA 78
RF-SW 18
TRICK-H 11
SP/LP/SLP 14
H-A-SW 79
80
H-A-COMP
OUTPUT-SELECT
OUTPUT-SELECT
46
P-ON-L
22
P-DOWN-L
1
OUTPUT-SELECT
D561 POWER
CL508
1
KEY
2
SWITCH
FUNCTION CBA
D565 REC
D564 TIMER
D566 VCR
D567 DVD
TO DVD SYSTEM
DVD POWER
CONTROL BLOCK
DIAGRAM
<DVD SECTION>
CLOCK
DATA
VCR/TV
IIC-BUS SCL
IIC-BUS SDA
Hi-Fi-H-SW
FROM/TOHi-Fi AUDIO
NORMAL-H BLOCK
ST/SAP-MODE
A-MUTE-H
A-MUTE-H
D-REC-H
TO AUDIO
D-PB-L BLOCK
D-REC-H
D-PB-L
INSEL/ST-SL
C-SYNC
D-V SYNC
V-ENV
FROM/TO
C-ROTA
VIDEO BLOCK
RF-SW
TRICK-H
SP/LP/SLP
H-A-SW
H-A-COMP
P-ON-L
FROM/TO POWER
P-DOWN-L
SUPPLY BLOCK
TO DVD SYSTEM
CONTROL BLOCK
DIAGRAM