Pioneer PDP-434PU Service Manual page 4

1
Charged Section
The places where the commercial AC power is used without
A
passing through the power supply transformer.
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
B 3. Power Switch (S1)
4. Fuse (In the POWER SUPPLY Unit)
5. STB Transformer and Converter Transformer
(In the POWER SUPPLY Unit)
6. Other primary side of the POWER SUPPLY Unit
43 Y DRIVE Assy
43 SCAN
C
B Assy
43 SCAN
A Assy
D
E
F
4
1
2
Fig.1 Charged Section and High Voltage Generating Point (Rear View)
PDP-434PU
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 Unit......................................
2. 43 X DRIVE Assy ...........................................(–225V to 215V)
3. 43 Y DRIVE Assy ...........................................................(345V)
4. 43 SCAN (A) Assy ..........................................................(345V)
5. 43 SCAN (B) Assy ..........................................................(345V)
6. X CONNECTOR AAssy ............................
7. X CONNECTOR B Assy ............................ (–225V to 215V)
: Part is Charged Section.
: Part is the High Voltage Generating Points
other than the Charged Section.
POWER SUPPLY Unit
AC Inlet with Filter
3
4
(215V)
(–225V to 215V)
43 X DRIVE Assy
X CONNECTOR
A Assy
X CONNECTOR
B Assy
Power Cord
Power Switch
(S1)
4