Sanyo PLC-XF45, Service Manual

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This projector is equipped with the following protec-
tions to operate in safety.
Protections
❏
Fuse
for circuit protection
The fuse is located in the rear inside a projector. (Refer to figure.) When
either the LAMP indicator or the READY indicator is not illuminated,
fuse may be opened. Check the fuse as following steps.
1. Remove the Cabinet-top following to “Mechanical Disassemblies”.
2. Remove the fuse from fuse holder.
3. Check the resistance of fuse using a tester.
To install the fuse, take reversed step in the above.
It should be used the specified fuse as follows;
Fuse Part No.: 423 028 4209
TYPE 15.0A400V FUSE
SOC CORP. SHV14 15A N4
■
The Lamp circuit (the lamp and the electrode of the lamp socket) of this
projector is not insulated from AC line, and it is "HOT." Therefore,
when replacing lamp assembly, an electric shock may be received.
However, the interlock switch (SW902) is designed so that it may protect
from the accident.
■
This switch(SW902) insulates a lamp circuit from AC line, when cover-
top is opened. (The lamp circuit changes to "COLD.")
❏
Protection equipment for users
Electric shock protection. (Interlock switch)
Co
ver top
Lamp socket
Interlock
switch
AC INPUT
Fuse
F901
Main sw
SW901
Interlock SW
SW902
Ass'y
Power
P.F.C.
P.F.C.
Lamp
ballast
Lamp 1
Lamp 2
Lamp
ballast
Lamp 3
Lamp 4
The label of the right figure sticks near the Fuse.