Hardware - Epson PowerLite 5000 Service Manual

2.1 HARDWARE

The optical and electrical systems are the major areas of projector hardware.
The lower level (below the broken line in the figure) shows the optical system, and the
upper level shows the electrical system.
POWER SUPPLY:
Generates DC
voltages (+5 V, +12
V, +22 V, +3.3 V)
for the electric
circuits; also
generates DC
voltage (350 V) for
the light source.
CONTROL PANEL
EXHAUST FAN *2
LAMP INNER
HOUSING
150 W-350 V
(light source)
Notes:
*1: The intake fan cools the R/G/B light valves (LCD panel).
*2: The exhaust fan removes hot air around the light source.
MAIN BOARD:
Sets initial operation of
the circuit and controls
the computer interface.
Controls the sensors,
fans, speakers, and
control panel.
INTAKE FAN *1
Computer In 1/2
LIGHT GUIDE UNIT:
Divides light into 3
parts (R/G/B) for the
lens, filter, and mirror
Figure 2-1
EPSON PowerLite 5000 Service Manual
DRIVER BOARD:
Generates
R/G/B video
signals, outputs
to the light
valves, and
stores the image
correction data
in flash ROM.
OPTICAL UNIT: PRISM
(polarization R/G/B
composite
plate / light
valves R/G/B)
2-1
Audio In 1/2
AU BOARD:
Audio Out
Audio In/Out,
S-Video
Video In
Video
Audio In L/R
CN BOARD
Mouse/
FR BOARD
COM 1/2
PROJECTOR
LENS UNIT:
Focus/Zoom