Block Diagrams - FUNAI 25A-664 Service Manual

Servo/System Control Block Diagram
(DECK ASSEMBLY)
AC HEAD ASSEMBLY
CL287
CONTROL 5 CTL(+)
HEAD
6 CTL(-)
Q504
ST-S
SENSOR CBA
Q505
END-S
SENSOR CBA
CYLINDER ASSEMBLY
PG
SENSOR
DRUM
M
MOTOR
M
LOADING
MOTOR
MAIN CBA
SW507
LD-SW
CL504 AL+5V
5
6
TP506
END-S
Q503 PS503
T-REEL S-REEL
CAPSTAN MOTOR
CL502
12 C-F/R
CAPSTAN
M
11 AL+15V/+12V
MOTOR
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
1-7-1

BLOCK DIAGRAMS

IC501
AL+5V
(SERVO/SYSTEM CONTROL)
RS501
REMOTE
D502
14 REMOCON-IN
SENSOR
S-LED
9 LD-SW
95 CTL(+)
94 CTL(-)
10 ST-S
4 END-S
80 T-REEL
79 S-REEL
Q501
TIMER+5V RESET 34 RESET
SW508
RESET
TP501
CTL
Q502
97 CTL
84 FF/REW-L
AL+5V
VR501
2 PG-DELAY
SW-POINT
AL+5V 31 REC-SAF-SW
SW506
REC-SAFETY
78 C-F/R
AL+15V/+12V
AL+12V
P-ON+5V
87 C-FG
76 C-CONT
89 D-FG
81 LM-FWD/REV
77 D-CONT
90 D-PG
C-POW-SW
TO
66 C-POW-SW
POWER P-ON-H
67 P-ON-H
SUPPLY
P-DOWN-L
86 P-DOWN-L
BLOCK
TP507
S-INH
CL505
KEY
KEY- 1 7 4 KEY-1
SWITCH
2 KEY-2
KEY- 2 8
SW505
CH-UP
FP562
IC561
LED CLOCK
(FIP DRIVER)
DRV-DATA 68 28 DRV-DATA G1 23
DRV-STB 69 2 DRV-STB G2 22
DRV-CLK 70 1 DRV-CLK G3 21
G4 20
S1 7
S2 8
S7 13
S8 14
S9 16
S10 17
A-MUTE-H 83
Hi-Fi-H-SW 19
A-MODE 61
IIC-BUS SDA 72
IIC-BUS SCL 71
DAVN-L 20
D-REC-H 65
RF-SW 18
C-ROTA 15
D-V SYNC 13
H-A-SW 16
H-A-COMP 17
V-ENV 6
C-SYNC 58
1-7-2
FUNCTION CBA
CN651
KEY SWITCH
4
2 KEY SWITCH
TU701(TUNER UNIT)
3 SDA
12 SDA
5 SCL
11 SCL
IC503 (MEMORY)
5 SDA
6 SCL
IIC-BUS SDA
IIC-BUS SCL TO
AUDIO BLOCK
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
TO
Hi-Fi-H-SW Hi-Fi AUDIO
BLOCK
A-MODE
IIC-BUS SDA
IIC-BUS SCL
DAVN-L
D-REC-H
RF-SW
C-ROTA
TO
D-V SYNC
VIDEO BLOCK
H-A-SW
H-A-COMP
V-ENV
C-SYNC
HC4S4BLS