Pioneer CT-W505R Service Manual page 7

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3. PCB CONNECTION DIAGRAM
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.
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
Connector Capacitor
P. C. Board Chip Part
3.1 TRANSFORMER 2 UNIT and SUB UNIT
TRANSFORMER 1 PCB
230–240V
AC POWER CORD
220–230V
LIVE
NEUTRAL
SIDE A
SUB UNIT
1
2
Symbol in PCB
Diagrams
B C E
B C E
SIDE A
D G S
SIDE B
To MAIN UNIT CN1503
2
3
Symbol in Schematic
Part Name
Diagrams
B C E B C E
Transistor
B C E B C E
Transistor
with resistor
D G S D G S
Field effect
transistor
TRANSFORMER 2 UNIT
POWER TRANSFORMER
3
4
CT-W505R
Symbol in PCB Symbol in Schematic
Diagrams Diagrams
Resistor array
SIDE A
(RNP1728–A)
To MAIN UNIT
J1001
(RNP1728–A)
4
Part Name
A
3-terminal
regulator
B
C
D
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