PDP-502MX
80
D441 D439 D437D443D407
CN353
P2
TOP
D205
D305
Fuse (FU101)
MAIN POWER ASSY
CN354
P3
CN205
P5
D355
S301
Q419
Q435
D408
D448
Q421
Q418
Q426
Q417
Q420
Q416
Q415
CN306
P6
CN355
P4
S111
Q111
D405
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.
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