ENERGY SAVING MEASURES DEVICE FOR MONITOR CONTROL SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent screen burning of a CRT device and to save energy in its system. SOLUTION: The CRT device 11 is constituted of a CRT main body 11a and a source switch 11b turning on/off a source supply to this CRT main body 11a, and the CRT device 11 is connected with a CPU main body 12 loaded on a computer by an RGB cable 13. An output circuit (DO module) 14 is mounted on the CPU main body 12, and this CPU main body 12 sends an output signal (DO signal) out through the output circuit 14, and controls a relay circuit 16 provided between a power source 15 and the CRT device 11 by this output signal, and operates so as to turn the source supply of the CRT device 11 off.