Pioneer PDP-502MX Service Manual page 80

PDP-502MX
Note for repairing in case of blown fuses
Never turn on the power of the unit again just by replacing the fuse, when the fuse is blown.
Because, it is rare case that the fuse itself is defective. If the power is turned on again without resolving the cause of over
current, the unit is damaged more.
Be sure to check parts such as In-Rush current protective resistors where excessive current may flow.
Because, they may be damaged secondarily.
Be sure to find out all defective parts caused by a blown fuse.
Because, if the power is turned on with even one defective part left in the circuit, this may lead the other parts to become
defective again.
MAIN POWER ASSY
CN205
P5
D205
CN353
P2
Q415
CN354
Q426
P3
Q417
Q418
CN306
P6
Q419
Q421
S301
CN355
Q435
P4
D408
D448
80
D305
Q416
Q420
D355
D407 D443
TOP
S111
D405
Q111
D441 D439 D437
Fuse (FU101)