Read Panasonic WV-CPR470 / WV-CPR474E Service Manual Simplified online
4-1
SCHEMATIC DIAGRAM OF MAIN BOARD (4/4)
<Location Mark>
MAIN BOARD
(1/4)
(3/4)
(2/4)
(4/4)
MOTOR DRIVER
TO
IR FILTER
MECHANICAL
ASS'Y(M5)
IR FILTER
MECHANICAL
ASS'Y(M5)
TO
I/F BOARD
(1/2)
CN1
I/F BOARD
(1/2)
CN1
2.7
4.8
0
-
4.8
-
0
0
0
0
0
-
4.8
-
0
0
-
4.8
-
0
2.7
0
0
0
0
LL DET2
2W/4W
485EN
485RD
IR-IN2
IR-IN1
IR-ENA
485SD
UP
LL PUL
FWHD2
FLICKERLESS
DO
WN
RIGHT
LEFT
SET
INT/LL
UPSIDE DO
WN
485DET
ALARM/AP
BW SW
BW LEVEL
EXT BW
ALC SW
CN3
FILTER- A+
FILTER- A-
FILTER- B+
FILTER- B-
FILTER- A-
FILTER- B+
FILTER- B-
1
2
3
4
2
3
4
CN2
EXT BW
GND
GL/FLICKER
LLPUL/LPF2
LLPUL/LPF2
485EN
LLDET/LPF1
REF
BW SW
GND
VIDEO
SET
485SD/AUDIOVR
485RD
BW LEVEL
INT/LL
UPSIDE DOWN
UPSIDE DOWN
+3.3V
UP
RIGHT
+1.8V
AGC+5V
+5V
GND
+2.7V
ALARM/AP
DUMP
DUMP
DRIVE
LEFT
485DET/FMFREQ
DOWN
+10.5V
2W/4W
GND
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
R138
300K
IC18
5
1
2
3
2
3
4
DSP+2.7V
+
–
C86
0.01
C20
10/10
L7
+
–
C88
0.1
C18
10/10
L5
+1.8V
+3.3V
+5V
AGC+5V
+10.5V
DSP+1.8V
DSP+3.3V
+2.7V
DSP+2.7V
TG+2.7V
TG+1.8V
+
–
C87
0.01
C17
10/10
L4
2.2
2.2
2.2
2.2
2.2
+
–
C16
10/10
L3
+
–
C19
10/10
L6
IC1
GND
VS1
IN1
IN2
VS2
ENA1 ENA2
OUT1 OUT3
OUT1 OUT3
OUT2 OUT4
VCC
C1
VC
GND
1
2
3
4
5
6
7
2
3
4
5
6
7
8
9
10
11
12
13
14
330/6.3
–
+
R1
2.7
1/4W
R144
0
R151
R146
0
R143
OPEN
R152
12K
OPEN
R128
100K
R142
OPEN
R145
OPEN
R148
OPEN
R149
LPF2
CH11 (FM FREQ)
LPF1
CH13
REF
VIDEO
DRIVE
DUMP
G/L
CH13 (AUDIO VR)
OPEN
R147
0
+5V
G/L
REF
DUMP
DRIVE
VIDEO
LPF1
LPF2
ALC SW
CH11
CH13
CH13
(LL PLL)
marked Parts are different from
the Original Service Manual.
the Original Service Manual.
7
8
9
10
11
12
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