PDA-4003
14
A
B
C
D
1
2
3
4
1
2
3
4
A
4. PCB CONNECTION DIAGRAM
DOWN CONVERTER ASSY
A
+
–
4.1 DOWN CONVERTER ASSY
NOTE FOR PCB DIAGRAMS:
1. Part numbers in PCB diagrams match those in the schematic
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol in PCB
Diagrams
Symbol in Schematic
Diagrams
Part Name
Transistor
Transistor
with resistor
Field effect
transistor
B
C
E
B C E
B C E
D G S
B
C
E
B
C
E
B
C
E
D
G
S D
G
S
3. The parts mounted on this PCB include all necessary parts
for several destination.
For further information for respective destinations, be sure
to check with the schematic diagram.
4. Viewpoint of PCB diagrams
Resistor array
3-terminal
regulator
Capacitor
Connector
P. C. Board
Chip Part
SIDE B
SIDE A
