Block Diagrams; Servo/System Control Block Diagram - Hitachi VT-FX795A Service Manual

6 BLOCK DIAGRAMS

6-1 Servo/System Control Block Diagram

(DECK ASSEMBLY)
ACE HEAD ASSEMBLY
CONTROL 5 CTL(+)
HEAD
6 CTL(-)
CYLINDER ASSEMBLY
PG
SENSOR
DRUM
M
MOTOR
M
LOADING
MOTOR
12
MAIN CBA
D555
S-LED
CL504
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
AL+5V IC501
RS501
REMOTE
5 REMOCON-IN
SENSOR
TP513
CTL
58 CTL
56 CTL(+)
57 CTL(-)
SW512
AL+5V
LD-SW
68 LD-SW
TP505
T-REEL
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
21 LM-FWD/REV
29 D-CONT
47 D-PFG
AL+12V
AL+15V
SYSTEM CONTROL
TP502
MICROPROCESSOR
S-INH
KEY
KEY- 1 67
SWITCH
KEY- 2 66
KEY
SWITCH
IC571
(LED DISPLAY DRIVE)
DISPLAY-CLK 6 1 CLK 1G 23
DISPLAY-ENA 9 2 STB
DISPLAY-DATA 8 28 DIN 4G 20
a 7
b 8
h 14
i 16
j
17
VCR/TV 77
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
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 26
H-A-SW 79
H-A-COMP 80
P-ON-L 22
P-DOWN-L 1
FIP502
LED DISPLAY
GRID
SEGMENT
TU701(TUNER UNIT)
11 CLOCK
12 DATA
5 VCR/TV
IIC-BUS SCL
IIC-BUS SDA
FROM/TO
Hi-Fi-H-SW
Hi-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
FROM/TO
P-ON-L
POWER
P-DOWN-L
SUPPLY
BLOCK