WV-CLR920A, WV-CLR924AE - Panasonic Video Monitoring Service Manual Simplified (repair manual). Page 8

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3-2
OVERALL BLOCK DIAGRAM (2/2)
+
+
RESET
VOLTAGE
DETECTOR
RESET
+3.3V
IC419
IC402
OP1O
OP1-
OP2O
OP2-
16
15
14
13
32
LPFO
30
LPFI
VREF1
SYNCLEV
CIN
YIN
CBLK
SYNCIN
CP2
BFP
BSD
SCCONT
APFIN
AGCOUT
VREF4
DATA
OP+
OP-
OPOUT
33
38
34
39
41
37
42
43
1
6
7
8
9
36
45
46
47
CH10
(ALC LEVEL)
C
16
2
Y
CBLK
CSYNC
CP2
BFP
BSD
CH11
(G/L SC PHASE)
DATA1
SERVO
 (VIDEO FOR SERVO)
FWHD
Q405
C
INPUT
BPF
1
6
2
BPF
ALC+5V
ALC VOLTAGE
DETECTOR
ALARM
OUTPUT
+5V
IC403
IC1006
IC408
DRIVE
VREF3
ALCSW
DUMP
TRAP
DAVDIN
VIDEOO
VIDEOF
GLIN
SYNCOUT
VD2OUT
BIAS
BURSTOUT
DATA
BC2
BC1
20
18
(+2.5V)
44
21
25
26
28
27
Z402
11
10
23
3
2
24
4
5
3
2
1
DRIVE
A+IN
A-IN
AOUT
Q403,406,407
ALC
SWITCH
REF
ALC SW
DUMP
VIDEO
S-G/L
75
Ω
S-G/L SYNC
S-G/L BSC
S-VD2
S-VBS
DATA2
IC416
D0
D1
D2
D3
D4
D5
D6
D7
A12
A13
A14
A11
A12
A13
A14
A11
NRE
NWE
ALE
BEND
RESET
84
85
86
87
88
89
90
91
35
36
37
33
2
3
11
78
82
45
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
/RE
/WE
ALE
IRQ2(BEND)
/RST
44
42
LLDET2
LLDET1
FVD
LP1
LP2
77
76
P45
(ALCSW)
P44
(LLDET2)
P43
(LLDET1)
IRQ1
(VD)
IRQ0
(LP)
SBO0
(TXD0)
SBI
(RXD0)
SBT0
(CLK0)
P10
(ROM1 CS)
P11
(DAC LD)
P46
(BUSY)
P47
(CG CS)
IC1003
IC406
DI
DO
SK
CS
RD/BSY
5
6
4
3
1
SD1
SD2
SCLK
SD1
SD2
SCLK
ROMCS
BUSY
LD
CGCS
69
68
67
93
94
46
47
P55
(NT/PAL)
(UP) P50
(DOWN) P51
(RIGHT) P52
(LEFT) P53
(SET) P54
OSCO
OSCI
P96
(IR-IN1)
P95
(IR-IN2)
P97
(IR-ENA)
P14
(FLICKERLESS)
P41
(2W/4W)
P23
(RS485DET)
SBI4
(RS485RD)
SBO4
(RS485SD)
P40
(RS485EN)
10
+2.7V(1)
5
6
7
8
9
24
23
UP
DOWN
RIGHT
LEFT
SET
UP
DOWN
RIGHT
LEFT
SET
UP
DOWN
RIGHT
LEFT
SET
MOTOR DRIVER
REF
(16MH
Z
)
X401
64
63
65
IR-IN1
IR-IN2
IR-ENA
97
40
(PAL
 ONLY)
CN8
16
55
56
39
26
TXDET
RD
SD
ACTS
RS+6.2V
ALARM
/AP
ALARM
/AP
RS+6.2V
RS+6.2V
+10.5V
+5V
+3.3V
+3.3V
+5V
LLDET2
CN404
LP2
DRIVE
DUMP
REF
DRIVE
DUMP
VIDEO
FLICKERLESS
S-G/L
+5V
+5V
+5V
+5V
CN402
CN1
IC5
IC14
IC4
+1.8V
+1.8V
+1.8V(1)
+1.8V(2)
+1.8V
+2.7V
+2.7V
+2.7V
+2.7V(1)
+2.7V(2)
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V(1)
SW1
SW2
SW3
SW4
SW5
CN6
CN9
+1.8V DC-DC
CONVERTER
+2.7V DC-DC
CONVERTER
+3.3V
REGULATOR
+3.3V
+3.3V
+5V
4
2
1
1
3
3
IR-IN1
IR-IN2
IR-ENA
VIDEO
CN403
S-G/L•FLICKERLESS
2W/4W
2W/4W
6
9
2,13
3
5
12
10
IN1
IN2
ENA1,2
OUT1
OUT2
OUT3
OUT4
IC15
Hi-Z
Hi-Z
4-LINE
2-LINE
2-LINE
2-LINE
4-LINE
4-LINE
SW6
CN2
CN4
G/L 75
Ω
75
Ω
RS485 LINE TERM
2-LINE
2-LINE
4-LINE
4-LINE
RS485 LINE 
TERM
Hi-Z
R
D
RS+5V
2
3
4
5
12
11
10
9
IC6
IC13
Q100
IC12
IC7
IC8
IC9
IC10
IC11
VOLTAGE DETECTOR
MONO. MULTI.
PHOTOCOUPLER
RS+6.2V
+10.5V
+5V
LLDET
LP
VIDEO
OUT
CN2
VIDEO OUTPUT
CONNECTOR
CN4
GEN-LOCK INPUT
CONNECTOR
E1
RS485 TERMINALS,
ALARM OUTPUT TERMINAL,
DAY/NIGHT INPUT TERMINAL
SW6
1-10: GEN-LOCK TERMINATION SWITCH
         (Default setting is G/L 75
Ω
.)
2-9  : RS-485 TERMINATION SWITCH
         (Default setting is RS485 LINE TERM.)
3-8  : FULL-DUPLEX / HALF-DUPLEX
4-7    SELECTION SWITCHES
5-6   (Default settings are 2-LINE.)
GEN-LOCK
6
6
2
2
1
2
7
9
4
4
4
3
1
2
1
4
5
5
5
9
10
11
12
13
17
16
15
8
14
7
1
10
12
8
P24
(ALARM)
9
29
EXT BW
EXT BW
ALARM
ALARM
D/N
CN7
(CN1)
E2
E1
D/N
P27
(EXT BW)
11
RX(A)
A4
B4
A3
B3
A1
B1
A2
B2
A7
B7
A6
B6
A9
B9
A8
B8
TX(B)
RX(B)
TX(A)
RX(A)
TX(B)
RX(B)
TX(A)
7
3
CN6
AUTO IRIS LENS
CONNECTOR
SW1  UP BUTTON
SW2  DOWN BUTTON
SW3  RIGHT BUTTON
SW4  LEFT BUTTON
SW5  SET  BUTTON
FILTER-A+
A
RS485
IN/OUTPUT
TERMINAL
B
R
B
A
T
OUT
GND
IN
GND
4
3
1
2
7
6
9
8
ALARM
DAY/
NIGHT
FILTER-A-
FILTER-B+
FILTER-B-
TO
FILTER
SELECTION
ASS'Y(M7)
LINE
DRIVER/
RECEIVER
TO
POWER
BOARD
CN101
EEPROM
VIDEO OUT,ALC,
SYNC SEPARATOR
ALC DRIVER
MICROCOMPUTER
Z401
MI-COM
S-DATA
TO (1/2)
I/F BOARD
TERMINAL BOARD
Display
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