FUNAI DRVR-B778S - Block Diagrams

1-12-1
BLOCK DIAGRAMS
Servo/System Control Block Diagram
E9G01BLS
MLOADING
MOTOR
CAPSTAN MOTOR
CONTROL HEAD
5 CTL(+) 6 CTL(-)
CN504
KEY- 1
ST-S T-REEL
CTL(+)
RESET
PG-DELAY
CTL(-)
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
END-S
94 95 10
4
80 34
2
7
REMOTE
14
(DECK ASSEMBLY)
T-REEL
Q515
RESET
Q506
S-REEL
79
SW-POINT
AL+5V
VR501
TIMER+5V
S-REEL
PS502
KEY- 2
8
IIC-BUS SDA IIC-BUS SDA
IIC-BUS SCL
AUDIO-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
Hi-Fi-H-SW
A-MODE
VCR-AUDIO-MUTE
Hi-Fi-H-SW
A-MODE
H-A-COMP
V-ENV
VIDEO-SW1 OUTPUT-SELECT
IIC-BUS SCL
IIC-BUS SDA
OUTPUT-SELECT
22 82
23
VIDEO-SW2
VIDEO-SW1
24
VIDEO-SW2
VIDEO-SW3
IIC-BUS SDA
IIC-BUS SCL
DVD-AUDIO-MUTE2
OUTPUT-SELECT
RGB-THROUGH
I/P-SW
OUTPUT-SELECT
VIDEO-SW3
27
RGB-THROUGH
20
I/P-SW
29
DVD-AUDIO-MUTE2
DVD-SCART -AUDIO-MUTE
TO VIDEO BLOCK DIAGRAM
TO VIDEO INPUT SELECT BLOCK DIAGRAM TO VIDEO OUTPUT SELECT BLOCK DIAGRAM TO AUDIO INPUT/OUTPUT SELECT BLOCK DIAGRAM
TO Hi-Fi AUDIO BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM
22POWER-SW 33
POWER-LED
CN508
D671
CN671
AL+5V
AL+5V
11
OPEN/CLOSE-SW
22
DUBBING-SW
CN510 CN681
86 19 83
DRV-DATA
POWER-LED
DVD-LED VCR-LED
1G 7G
a
i
68
DRV-CLK
70
DRV-STB
DRV-DIN DRV-CLK DRV-STB
69
7
1 3 2
8 9
IIC-BUS SCL
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
24
DAVN-L
DAVN-L DVD-AUDIO-MUTE
DVD-SCART-AUDIO-MUTE
30
C-SYNC
C-SYNC
IIC-BUS SCL
LD-SW
9
AL+5V
SW507
LD-SW
AL+5V
D555
S-LED
TP501
RM1501
SENS-INH
IC501 (SERVO/SYSTEM CONTROL)
IC612 (VFD DRIVER)
AUDIO-MUTE-2
AUDIO-MUTE-2
28
END-S
ST-S
Q504
Q503
REC-SAF-SW
31
SW506
AL+5V
REC-SAFETY
REMOTE SENSOR
CTL
97
TP503
CTL
POWER
SW671
POWER
VCR
DVD
FL601
GRID SEGMENT
VFD
D502 D503
SW681 SW682
OPEN/CLOSE
DUBBING
CN502
C-FG
C-CONT
D-PFG
C-F/R
90
76
87
2
1
78
DVD-POW-SAFETY S-DATA-OUT S-DATA-IN
65 89 66
READY/BUSY S-CLOCK
64
67
LM-FWD/REV
81
26
DVD-AUDIO-MUTE
D-CONT
77
SYSTEM-RESET
63
3
C-FG
4
C-F/R
5
C-CONT
7
LM-FWD/REV
8
D-CONT
9
D-PFG
CN1502
58
6
17 16 13 15 18 33 71 72
KEY SWITCH (VCR)
CYLINDER ASSEMBLY
DRUM MOTOR
PG SENSOR
M
M
CAPSTAN MOTOR
MOTOR DRIVE CIRCUIT
Q517 Q516
Q518
Q519
42 36 20 28
IC101
(MAIN MICRO CONTROLLER)
V25
R25
R2
W26
R23
B4
SYS-RESET SYS-RESET
SUB-RXD
SUB-TXD
SUB-SCLK
RDY
CN701
27 27SYS-RESET 30 30SUB-RXD 28 28SUB-TXD 26 26SUB-SCLK 29 29RDY
IC106
CN101
CN1501
25
REG-CONT2
11
FAN-CONT1
32
P-DOWN-H
41 PWR-SW 42
REG-CONT
75
P-ON-H
84
C-POW-SW
FAN-CONT1
P-DOWN-H
PWR-SW REG-CONT P-ON-H C-POW-SW
AL+3VP-ON+1.2V
+1.8V
111V2CONT
+1.2V REGULATOR
IC107
RESET
TO POWER SUPPLY BLOCK DIAGRAM
KEY SWITCH (DVD)
ACE HEAD ASSEMBLY
SENSOR CBA SENSOR CBA
DVD MAIN CBA UNIT
MAIN CBA
POWER SW CBA FUNCTION CBA