Panasonic WV-CF224 Service Manual page 16

POWER BOARD
(12V DC) (24V AC) CN1
F1 CF1
C
+
LIVE 1
– 3.15A
NEUTRAL 2
250V
3 4
GND 3
TO
POWER
2 1
CABLE
(E3)
B
A
AGND
Important safety notice
Components identified by " " mark have special characteristics for safety.
When replacing any of these components, use only manufacture's specified parts.
1
SCHEMATIC DIAGRAM OF POWER BOARD
D1
10
D2
D3
D4
C13
104
Q1
D
C7
R2
G
151
224
S
Q4 R14
221
Note: The value indicated in the schematic
diagram should be read as follows:
2
T1
D21
L21
330
9 2
D22
L22
8 3
330
7 4
6 5
Q2
1 4
2 3
R24 C23
Q3
4 1
123 105
3 2
C12
103
<Example>
For Resistor: For Capacitor (Exclude Electrolytic
330 → 33 x 10 = 33 Ω
0 and Tantalum Capacitor):
Multiplier (0–5)
561 → 56 x 10 = 560 Ω 820 → 82 x 10
1 0 = 82PF
2nd Significant Digit (0–9) 123 → 12 x 10 = 12k Ω 102 → 10 x 10
2 = 1,000PF = 0.001µF
3
1st Significant Digit (0–9) 0R00=0 Ω 104 → 10 x 10
4
= 100,000PF = 0.1µF
2R0 = 2.0 PF
3 4
4-4
<INDEX>
POWER
BOARD
IC1
Q1
Q2
Q3
Q4
D1
D2
D3
D4
D5
D6
D7
D8
D9
D21
CN2
D22
1 10.5V
D23
2 5V
D24
3 GND
4 GND
5 LLDET
6 LP
Attachment1
Attachment2
TO
SW
BOARD
CN3
DGND
For Coil:
270 → 27 x 10 = 27 µH
0
101 → 10 x 10 = 100 µH
1
8R2 = 8.2 µH
5
A4
B2
B3
A3
A2
C2
C2
C2
C2
A2
B2
B3
B3
A3
C3
B3,C3
C5
C5