Read Panasonic WV-CF224E Service Manual online
4-2
SCHEMATIC DIAGRAM OF MAIN BOARD
OPEN
TP1
(LL
VCO)
(LL
VCO)
TO
SENSOR
BOARD
CN1
SENSOR
BOARD
CN1
TO
SW
BOARD
CN2
SW
BOARD
CN2
C39
104
D6
D3
D4
D5
Q19
C26
4.7/25
C29
+
+
-
-
1/25
C38
10/25
+
-
Q14
Q15
C22
105
C24
105
C20
475
C19
475
C23
105
D2
D1
R81
101
R42
161
R82
360
B
2
C
3
E
1
Q13
Q11
Q10
Q9
Q12
R61
201
R51
102
R83
100
C17
103
C25
471
C18
8R0
C37
22/25
+
-
R45
222
L4
8R2
C27
OPEN
OPEN
C32
C33
105
105
R46
241
R80
R79
620
100
R53
222
R33
102
R34
222
R41
363
R35
242
R44
821
R47
103
R43
752
R49
103
R50
102
R60
201
R62
R58
0R00
R69
302
R73 332
Q16
R68 123
C31
106
R78
392
D7
DC-DC
VIDEO OUTPUT
Q18
102
R65
222
R66
242
R77 332
R74 392
R64
392
R104
0R00
Q4
Q5
R28
684
R17
R23
R21
563
R15
102
R20
682
R14
104
C11
4.7/16
+
-
+
-
R18
OPEN
OPEN
C10
C9
15/16
+
+--
+-
+-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC2
R11
104
R10
563
C8 473
C6
104
C7
473
C3
222
R12
334
R9
333
R6
154
R13
153
R8
102
R16
OPEN
OPEN
OPEN
L2
8R2
Q2
Q1
R5
222
R1
222
R22
134
R24
514
R27
101
R29
102
R26
474
C12
225
C14
104
Q3
C13
105
C15
104
R30
OPEN
1
2
3
4
2
3
4
5
6
7
8
IC1
C1
103
R3
0R00
R4
220
R2
OPEN
R7
102
C4
103
C5
105
R25
104
TP1
R31
104
R32
104
L1
8R2
ALC
LP SYNC
C2
OPEN
+
-
3.3V
1
2
3
4
2
3
4
5
6
7
8
COMMON VDD
INH
VEE
VSS
INH
VEE
VSS
CH0
CH1
CH1
A
IC3
1
2
34
6
Z1
C16
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
Q6
Q6
OPEN
Q7
C21
R40
R56
OPEN
R55
R57
R52
R48
Q8
OPEN
R67
C30
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
R63
R100
R71
R70
R72
R76
Q17
R75
C34
3.3V
1
2
3
4
2
3
4
5
6
7
8
IC100
C100
D100
R103
OPE N
R19
304
TD1
TD3
TD5
TD7
TD9
TD11
TD13
TD15
TD17
TD19
TD21
TD23
TD25
TD26
TD27
TD28
TD29
TD30
OSC
VCXO
BLC
SOFT/SHARP
PCO
ALC/ELC
CO-LPF
Y OUT
C-OUT
VD2
LL DET
LLP
FWHD
CSYNC
CBLK
TD14
TD18
TD20
TD22
TD42
TD24
TD41
TD40
TD37
3.3V
5V 9V
TD36
TD38
TD35
TD34
TD33
TD32
TD31
SOFT/SHARP
ALC/ELC
BLC
INT/LL
INT/LL
LL DET
LP
LP
R101
OPEN
R102
OPEN
C28
5V
LLP
LP
INT/LL
LL DET
PCO
OSC
CO-LPF
VCXO
BLC
9V
CSYNC
ALC/ELC
VD2
C-OUT
Y OUT
CBLK
FWHD
9V
CLIP CIRCUIT
OPEN
3.3V 5V
VD2 SYNC
FLC
FLC
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
11
12
13
3.3V
9V
INT/LL
BLC ON/OFF
ALC/ELC
VIDEO(I)
GND
GND
GND
LL DET
LP
LL DET
LP
5V
SOFT/SHARP
FLC
CN3
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
11
12
13
14
15
16
17
18
19
20
ALC/ELC
AF OUT
FLC
5V
-9V
FW HD
CSYNC
+15V
Y OUT
C OUT
DAC B/W
CBLK
VCXO LPF
PCO
BLC ON/OFF
VD2
SOFT/SHARP
GND
GND
GND
GND
GND
3.3V
OSC CONT
LL DET
LL PULSE
ALC VREF
IRIS ADJ
21
22
23
24
25
26
27
28
29
30
22
23
24
25
26
27
28
29
30
CO-LPF
DAMP
DRIVE
CN1
Note: The value indicated in the schematic
diagram should be read as follows:
Multiplier (0–5)
2nd Significant Digit (0–9)
1st Significant Digit (0–9)
2nd Significant Digit (0–9)
1st Significant Digit (0–9)
<Example>
For Resistor:
330
→
33 x 10
0
= 33
Ω
561
→
56 x 10
1
= 560
Ω
123
→
12 x 10
3
= 12k
Ω
0R00=0
Ω
For Capacitor (Exclude Electrolytic
and Tantalum Capacitor):
and Tantalum Capacitor):
820
→
82 x 10
0
= 82PF
102
→
10 x 10
2
= 1,000PF = 0.001
µ
F
104
→
10 x 10
4
= 100,000PF = 0.1
µ
F
2R0 = 2.0 PF
For Coil:
270
→
27 x 10
0
= 27
µ
H
101
→
10 x 10
1
= 100
µ
H
8R2 = 8.2
µ
H
1
A
C
D
MAIN BOARD
B
3
4
5
6
2
<INDEX>
MAIN
BOARD
BOARD
IC1
C2
IC2
A3
IC3
C3
Q1
A2
Q2
A2
Q3
C3
Q4
A3
Q5
A3
Q9
A4
Q10
B4
Q11
B4
Q12
B5
Q13
B4
Q14
D5
Q15
D5
Q16
B5
Q18
B5
Q19
D5
D1
D4
D2
C4,D4
D3
D5
D4
D5
D6
D5
D7
B5
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