Block Diagrams - Hitachi VT-FX665AC Service Manual

Servo/System Control Block Diagram
(DECK ASSEMBLY)
AC HEAD ASSEMBLY
CN287
CONTROL 5 CTL(+)
HEAD
6 CTL(-)
CYLINDER ASSEMBLY
D-W
DRUM D-V
M
MOTOR D-U
D-COM
PG
PG-IN
SENSOR
LOADING MOTOR ASSEMBLY
LOADING LD-M(+)
M
MOTOR
LD-M(-)
CAPSTAN MOTOR
C-F/R
CAPSTAN
M
P-ON+5V
MOTOR
AL+12V
C-FG
NU
C-CONT
FG-GND
CM-GND

BLOCK DIAGRAMS

MAIN CBA
IC301 (Y/C PROCESS)
CONTROL
AMP
TP303
CTL
9 23 19 18
CN504
8
9
IC506 (DRUM /LOADING MOTOR DRIVE)
CN502
25
1
DRUM
2 24
MOTOR
3 22
DRIVE
4 21
5 15
+
-
16
17
LOADING
4
DRIVE MOTOR
2
CONTROL
TP506
ST-S
CN504
1
2
Q504 Q503
ST-S END-S
CN503
1
2 P-ON+5V
3 AL+12V
4
5
6
7
8
1-8-1
IC501
(SERVO/SYSTEM CONTROL)
AL+5V
RS501
D555
S-LED REMOTE
1 REMOCON-IN
SENSOR
54 PB-CTL
20 REC-CTL(-)
19 REC-CTL(+)
TP510
SW507
LD-SW
AL+5V
LD-SW
74 LD-SW
AL+5V
14 56 D-CONT
20
52 D-FG
I2C-BUS-CLK
I2C-BUS-DATA
18 53 D-PG
LM-
9 59
FWD/REV
Hi-Fi/NOR-IN
TP505
T-REEL
75 ST-S
68 END-S
49 T-REEL
Q506
T-REEL
INSEL/ST-SL
Q501
TIMER+5V RESET 34 RESET
TRICK/C-G/APC
48 C-F/R
BLUEBACK-ON
51 C-FG
55 C-CONT
AL+5V
VR501
SW-POINT
71 PG-DELAY
TP502
S-INH
KEY
KEY- 1 72 CN507 CN651
SWITCH
3 KEY 2 1
KEY- 2 73
TP511
GND
FIP502
G1 81
DRIVE
G4 84
Q645~Q648
a 85
d 88
e 94
f 89
j 93
TU701(TUNER UNIT)
10 10 CLOCK
11 DATA
9
Hi-Fi-CLK 11
Hi-Fi-DATA
Hi-Fi-DATA 12
Hi-Fi-H-SW
Hi-Fi-H-SW 18
Hi-Fi-CS 8
NORMAL-H
65
ST/SAP-MODE
ST/SAP-IN 67
A-MUTE-H
A-MUTE-H
A-MUTE-H 13
D-REC-H 62
REC-SW 25 AL+5V
SW506
REC SW
D-PB-H 61
INSEL/ST-SL
7
C-SYNC 21
D-V SYNC
D-V SYNC 33
V-ENV 70
C-ROTA
15
RF-SW 17
TRICK/C-G/APC
47
SP/LP/SLP
SP/LP/SLP 45
BLUEBACK-ON
66
H-A-SW 16
H-A-COMP
H-A-COMP 14
60
P-ON-L
P-DOWN-L
P-DOWN-L 63
1-8-2
FUNCTION CBA
KEY SWITCH
LED DISPLAY
Hi-Fi-CLK
TO Hi-Fi
Hi-Fi-CS
AUDIO
BLOCK
D-REC-H
TO AUDIO
D-PB-H BLOCK
D-REC-H
D-PB-H
C-SYNC
V-ENV
FROM/TO
C-ROTA
VIDEO BLOCK
RF-SW
H-A-SW
FROM/TO
P-ON-L
POWER
SUPPLY
BLOCK