-5-
Fuse
Cover
Holder
This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro-
jector, it will automatically turn off by operating one of the following protection circuits.
Circuit Protections
A fuse is located at bottom of the projector. When the
POWER/LAMP indicators are not lightning, the fuse may be
opened. Check the fuse as following steps.
The fuse should be used with the following type;
Fuse Part No. : 323 028 4202
TYPE 15.0A 400V FUSE
SOC CORP. SHV14 15A N4
How to replace the fuse
1. Turn the projector upside down and remove the bottom
cover.
2. Remove the cover and fuse from fuse holder.
To install the fuse, take reversed step in the above.
There are the thermal switches (SW903 and SW904) inside of the projec-
tor to detect the internal temperature rising abnormally. When the internal
temperature reaches near 80˚C, the thermal switch opens to cut off the error
detection signal supplied to the system control part and then the projector will
set in the power failure mode.
The thermal switch will automatically return to normal condition when the
internal temperature becomes normal.
Thermostat
(SW903)
Thermostat
(SW904)
Fuse
Thermal switches (SW903, SW904)
DS+750 Service Manual
020-000211-01 Rev. 1 (06-2009)
Содержание DS+750
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Страница 47: ...45 Electrical Adjustment Test Points and Locations K66S 1 7 DS 750 Service Manual 020 000211 01 Rev 1 06 2009...
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Страница 154: ...152 IC Block Diagrams L K4S641632K SDRAM IC3401 L PW392 Scaler IC301 DS 750 Service Manual 020 000211 01 Rev 1 06 2009...
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