Panasonic WV-CF224 Service Manual page 14

MAIN BOARD
D
C
TD1 TD5 TD9 TD13 TD17 TD21 TD25 TD27 TD29
TD3 TD7 TD11 TD15 TD19 TD23 TD26 TD28 TD30
CN1
3.3V 1
5V 2
-9V 3
OSC
OSC CONT 4
VCXO
VCXO LPF 5
BLC
BLC ON/OFF 6
SOFT/SHARP
SOFT/SHARP 7
+15V 8
PCO
PCO 9
ALC/ELC
ALC/ELC 10
DAMP 11
DRIVE 12
AF OUT 13
IRIS ADJ 14
CO-LPF
CO-LPF 15
ALC VREF 16
FLC
FLC 17
GND 18
Y OUT
Y OUT 19
GND 20
C-OUT
C OUT 21
B GND 22
GND 23
DAC B/W 24
VD2
VD2 25
LL DET
LL DET 26
LLP
LL PULSE 27
FWHD
FW HD 28
CSYNC
CSYNC 29
CBLK
CBLK 30
TO
SENSOR
BOARD
TD18 TD22 TD24
TD14 TD20 TD42
CN1
A
1
SCHEMATIC DIAGRAM OF MAIN BOARD
LP SYNC
3.3V
L1
8R2
IC3
1 8
COMMON VDD
2 7
INH CH0
3 6
R3 VEE CH1
4 5
VSS A
IC1
0R00
1 8
R4
2 7 R7
102
3 6
220
4 5
3.3V 5V
ALC
R15
102
Q1
Q2
R8 102
R12
334
C6
R6
C7
154
104 473
C3 222
2 3
R46
241
R42
161
TP1
(LL
OPEN
VCO)
Q7
Q3
C16
R24
TP1
514
OPEN
OPEN
Q6
R27
101
OPEN
D100
VD2 SYNC
Q13
C18
R33
B 2
102
8R0
R34
Q10
222
R41
363
5V
L2
8R2
Q9
Q4
R21
563
Q5
Note: The value indicated in the schematic
diagram should be read as follows:
Multiplier (0–5)
R25 2nd Significant Digit (0–9)
104 1st Significant Digit (0–9)
4
4-2
R82
D3 Q14 360
C26
-
+
Q19
D6
4.7/25
C32
Q15
FWHD
105
C29
- +
C33
1/25
105
D4
D5
DC-DC
C27
OPEN
OPEN
OPEN
C30
Q17
OPEN OPEN
Q8
R67
CBLK
OPEN
R100 OPEN
R71
OPEN
R70 R72
OPEN OPEN
IC100
3.3V
C100
8 1
OPEN
7 2
6 3 ALC/ELC
5 4 SOFT/SHARP
CLIP CIRCUIT BLC
R103
INT/LL
OPE N OPEN
FLC
OPEN
LL DET
LP
9V
L4
TD32
8R2
Q16 TD31
Q11
R80 R83
Q18 620 100
Q12
R58 R79
100
102
R62
0R00
R51
102
VIDEO OUTPUT
<Example>
For Resistor: For Capacitor (Exclude Electrolytic For Coil:
330 → 33 x 10 = 33 Ω 270 → 27 x 10 = 27 µH
0 and Tantalum Capacitor): 0
561 → 56 x 10 = 560 Ω 820 → 82 x 10 101 → 10 x 10 = 100 µH
1 0 = 82PF 1
123 → 12 x 10 = 12k Ω 102 → 10 x 10 8R2 = 8.2 µH
2 = 1,000PF = 0.001µF
3
0R00=0 Ω 104 → 10 x 10
4 = 100,000PF = 0.1µF
2R0 = 2.0 PF
5
<INDEX>
MAIN
BOARD
9V
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
TD37 TD41
TD40
5V 9V 3.3V
CN3
1 ALC/ELC
2 SOFT/SHARP
3 BLC ON/OFF
4 INT/LL
5 FLC
6 VIDEO(I)
7 GND
8 5V
9 9V
10 3.3V
11 GND
12 LL DET
13 LP
TO
SW
BOARD
TD34 TD36
TD33 TD35 TD38 CN2
6