Block Diagrams - FUNAI 23C-250 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+15V/+12V
C-FG
C-POW-SW
C-DRIVE
FG-GND
CM-GND

BLOCK DIAGRAMS

MAIN CBA
IC503 (1/3)
CN504
8 10 +
8
-
9
9
TP501 CTL
IC506 (DRUM /LOADING MOTOR DRIVE)
CN506
1 25
DRUM
2 24
MOTOR
3 22
DRIVE
21
4
5
16
+
-
15
17
LOADING
4
DRIVE
MOTOR
2
CONTROL
TP506
END-S
CN504
1
2
Q503 Q504
ST-S END-S
CN503
1
2 P-ON+5V
3 AL+15V/+12V
4
5
6
7
8
1-7-1
AL+5V IC501
(SERVO/SYSTEM CONTROL)
RS501
D555 REMOTE
1 REMOCON
SENSOR
S-LED
19 REC-CTL(+)
REC-CTL(-)
20
13 +
14 54 PB-CTL
-
12
SW507
AL+5V
LD-SW
74 LD-SW
P-ON+5V
14 56 D-CONT
20 52 D-FG
18
53 D-PG
REC-SAF-SW
LM-
59
9
FWD/REV
I2C BUS SCL-2
I2C BUS SDA-2
A-MUTE-H
75 ST-S
68 END-S
49 T-REEL
50
S-REEL
Q506 PS502
T-REEL S-REEL
Q501
SECAM-CHARA-H
TIMER+5V RESET 34 RESET
I2C BUS SCL-1
I2C BUS SDA-1
66 C-F/R
SW508
RESET
51 C-FG
46 C-POW-SW
55 C-CONT
AL+5V
VR501
SW-POINT
71 PG-DELAY
TP507
S-INH
KEY
KEY-1 72 CN505 CN651
SWITCH
2 KEY-2 2
KEY-2
73
TP501
FIP501
GND
G1 83
G6 88
93
P1
P6 98
P7 92
P10 89
IC505 (MEMORY)
6 SCL
AL+5V
25 5 SDA
SW506
REC-SAFETY
TU701
5 SCL
4 11
SCL
5 12 SDA
3 SDA
A-MUTE-H
60
D-REC-H
D-REC-H 62
I2C BUS SCL-1
I2C BUS SDA-1
SECAM-H
23
SECAM-H
TRICK-H
47
TRICK-H
SECAM-CHARA-H
2
I2C BUS SCL-1
10
I2C BUS SDA-1
9
V-ENV
V-ENV 70
C-ROTA
C-ROTA
15
RF-SW
RF-SW 17
I2C BUS SDA-1
I2C BUS SCL-1
DEC-L
DEC-L 79
1-7-2
FUNCTION CBA
KEY SWITCH
F I P
TO AUDIO
BLOCK
TO VIDEO
BLOCK
TO JACK
BLOCK
H8743BLS