Sanyo PLC-WU3800 Service Manual

-5-
Circuit Protections
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.
Thermal switch
There is the thermal switch (SW902) inside of the projector to de-
tect the internal temperature rising abnormally. When the internal
temperature reaches near 100˚C, the thermal switch opens to stop
the operation of the power supply circuit.
The thermal switch cannot be reset itself automatically even if the
internal temperature becomes normal. Reset the thermal switch
following to the below procedure.
How to reset the thermal switch
1. Insert the sharp tool like a screwdriver into a hole on the cabinet
from the cabinet bottom.
2. Press the reset button on the thermal switch with the screw-
driver.
CAUTION:
Before press the reset button, make sure that the AC cord must be
disconnected from the AC outlet.
Thermal switch (SW902)
Lamp cover switch
(SW901)
Lamp cover switch
The lamp cover switch (SW901) cuts off the drive signal to the lamp
circuit when the lamp cover is removed or not closed completely.
After opening the lamp cover for replacing the lamp ass’y, place the
lamp cover correctly otherwise the projector can not turn on.
Fuse
A fuse is located inside of the projector. When the POWER indicator
is not lightning, the fuse may be opened. Check the fuse as follow-
ing steps.
The fuse should be used with the following type;
Fuse Part No.: 323 025 1204
TYPE 8A 250V FUSE
LITTEL FUSE INC. TYPE 215008.
How to replace the fuse
1. The fuse is placed on the filter board under the main board. Re-
move the cabinet top and main board.
2. Take the fuse off, and replace the new one with the specified type.
Fuse

Sanyo PLC-WU3800 Specifications

General

Matrix size	0.59 \
Projection distance	0.99 - 12.1 m
Vertical scan range	50 - 100 Hz
Horizontal scan range	15 - 100 kHz
Projection technology	LCD
Contrast ratio (typical)	500:1
Screen size compatibility	40 - 300 \
Projector native resolution	WXGA (1280x800)
Keystone correction, vertical	±40 °
Audio input	2
Aspect ratio	16:10
Network ready	Yes
Power supply type	AC
Dimensions (WxDxH)	335.7 x 257.5 x 93.6 mm
Connectivity technology	Wired
Focus	Manual
Digital zoom	16 x
Focal length range	19.2 - 30.2 mm
Noise level	35 dB
Noise level (economic mode)	31 dB
Dot clock scanning frequency	140 MHz
Lamp type	NSHA
Lamp power	275 W
Light source type	Lamp
Service life of light source	2500 h
Service life of light source (economic mode)	3000 h
DVI port	No
Composite video in	-
Serial interface type	RS-232
USB 2.0 ports quantity	0
Supported video modes	1080i, 1080p, 720p
Analog signal format system	NTSC, NTSC 4.43, PAL, PAL M, PAL N, SECAM
Supported graphics resolutions	1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 800 (WXGA), 1400 x 1050 (SXGA+), 1600 x 1200 (UXGA), 1920 x 1200 (WUXGA), 640 x 480 (VGA), 800 x 600 (SVGA)
Product color	White
AC input voltage	100 - 240 V
Power consumption (standby)	0.7 W
Power consumption (typical)	317 W
Power consumption (PowerSave)	280 W
Cables included	VGA

Weight and Dimensions

Depth	257.5 mm
Width	335.7 mm
Height	93.6 mm
Weight	3500 g