Luma VCR425, Service Manual

Page: 14 / 74

M
M
LOADING
MOTOR
CYLINDER ASSEMBLY CAPSTAN MOTOR
DRUM
MOTOR
PG
SENSOR
CONTROL
HEAD
CL287
5 5 CTL(+)
6 6 CTL(-)
CL504
AC HEAD ASSEMBLY
MAIN CBA
KEY- 2
C-FG
C-CONT
D-FG
D-PG
ST-S
T-REEL
C-F/R
KEY- 1
REMOCON-IN
CTL(+)
RESET
REC-SAF-SW
PG-DELAY
CTL(-)
D-V SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
END-S
14
90
89
94
95
76
87
10
4
80
34
78
2
13
15
18
65
16
31
8
7
RS501
REMOTE
SENSOR
LM-FWD/REV
81
D-CONT 77
(DECK ASSEMBLY)
Servo/System Control Block Diagram
BLOCK DIAGRAMS
T-REEL
Q501
RESET
Q503
S-REEL 79
SW-POINT
AL+5V
AL+5V
VR501
TIMER+5V S-REEL
PS503
TP506
I2C-BUS SDA
I2C-BUS SDA
I2C-BUS SCL
A-MUTE-H
A-MUTE-H
H-A-COMP
17
V-ENV
6
P-ON-H
C-POW-SW
P-ON-H
C-POW-SW
P-DOWN-L
67
66
86 P-DOWN-L
C-SYNC
58
SW506
REC-SAFETY
TO
VIDEO BLOCK
TO
AUDIO BLOCK
2 2 KEY-2
4 4 KEY-1
KEY SWITCH
KEY SWITCH
CL505 CN651
FUNCTION CBA
1-7-1 1-7-2 HC341BLS
SDA
SDA
SCL
SCL
TU701(TUNER UNIT)
IC503
(MEMORY)
72
83
I2C-BUS SCL
D-V SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
I2C-BUS SDA
H-A-COMP
V-ENV
C-SYNC
I2C-BUS SCL 71
3
5
SDA
SCL
12
11
LD-SW 9
AL+15V/+12V
AL+12V
AL+5V
AL+5V
SW507
P-ON+5V
LD-SW
AL+5V
D502
S-LED
END-S
TO
POWER
SUPPLY
BLOCK
KEY
SWITCH
TP507
S-INH
SW505
CH-UP
M
CAPSTAN
MOTOR
IC501
(SERVO/SYSTEM CONTROL)
AUDIO-SW-2 30
AUDIO-SW-1
AUDIO-SW-2
AUDIO-SW-1
29
5
6
CL502
12 C-F/R
11 AL+15V/+12V
10 AL+12V
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
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q505
CTL 97
FF/REW-L 84
Q502
TP501
CTL
Q562
Q563
Q564
Q565
CAS-LED
TIMER-LED
REC-LED 26
25
24
POWER-LED 23
D565 REC
D564 TIMER
D563 CAS
D562 POWER
D561 STAND-BY
SW508
RESET