Pioneer PDP-503PC Service Manual page 4

1
Charged Section
The places where the commercial AC power is used without
passing through the power supply transformer.
A
If the places are touched, there is a risk of electric shock. In
addition, the measuring equipment can be damaged if it is
connected to the GND of the charged section and the GND of the
non-charged section while connecting the set directly to the
commercial AC power supply. Therefore, be sure to connect the
set via an insulated transformer and supply the current.
1. AC Power Cord
2. AC Inlet with Filter
3. Power Switch (S1)
4. Fuse (In the SW POWER SUPPLY Module)
B
5. STB Transformer and Converter Transformer
(In the SW POWER SUPPLY Module)
6. Other primary side of the SW POWER SUPPLY Module
C
D
∗
Remove the IF Earth Metal (No.14 on the page 25)
beforehand when inclines the power supply unit
as the right figure.
E
F
4
1
2
Y DRIVE
Assy
SCAN (A)
Assy
SCAN (B)
Assy
SW POWER SUPPLY
Module
Fig.1 Charged Section and High Voltage Generating Point (Rear View)
PDP-503PC
2
3
High Voltage Generating Point
The places where voltage is 100V or more except for the charged
places described above. If the places are touched, there is a risk of
electric shock.
1. SW POWER SUPPLY Module ...................................... (225V)
2. X DRIVE Assy ............................................... (–300V to 225V)
3. Y DRIVE Assy ................................................................(355V)
4. SCAN (A) Assy .............................................................. (355V)
5. SCAN (B) Assy .............................................................. (355V)
6. X CONNECTOR (A) Assy ............................ (–300V to 225V)
7. X CONNECTOR (B) Assy ............................ (–300V to 225V)
: Part is Charged Section.
: Part is the High Voltage Generating Points
other than the Charged Section.
AC Inlet with Filter
Power Cord
3
4
Top
Front
X CONNECTOR (A)
Assy
X DRIVE
Assy
X CONNECTOR (B)
Assy
Power Switch
(S1)
4