Overview Of Operation - Epson EMP-S4 Service Manual

EMP-S4

2.3.2 Overview of Operation

Digitalization control of the picture signal
Converts the analog RGB image signals input from Computer/Component Video port from
analog to digital form.
Frequency transformation control
Transforms the picture signal into the appropriate signals to drive the R, G and B LCD panels.
On screen display
Displays the menu and other information overlaid onto the input picture signal.
Remote control
Receives and decodes IR signals from the remote control and supplies control signals to
various MA board circuits.
Mouse control
Converts pointer information contained within the remote control signals into mouse signals in
PS/2 and USB serial format to send them to the computer.
Lamp control
Controls the ballast and lamp illumination.
LED control
Controls the display characteristics of the LEDs that indicate the power, temperature and
operational status of the projector.
Cooling control
Measures temperature and controls the speed of the fan.
Power supply control
Controls low-power consumption, sleep and stand-by modes.
SEIKO EPSON 2-9 Revision:B