2-14
EMP-S4
SEIKO EPSON Revision:B
2.6 RC Board Assembly
The Remote Control (RC) board is equipped with sensors that detect (receive) infrared signals
transmitted from the remote control. The two RC IR sensors are mounted on the front and rear
of the projector.
Figure 2-15. RC Receiver Sensor
The output signals (serial data) received by the sensors are sent to IC104 on the MA board. The
MA board uses the serial data received from the remote control button switches to control the
power ON/OFF status, menu start, and control the display (temporary stop, blank, etc.).
The remote control function is illustrated in Figure 2-16.
Figure 2-16. Remote Control Circuit Block Diagram
Rear IR Receiver Sensor
Front IR Receiver Sensor
RC Board
CN300
IC300
CN104
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