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Chapter
Left/Right Orientation: When referring to the left or right in this chapter, it is with reference to standing at the rear of the projector, facing the screen.
Connectors on subassemblies and PCBs have tabs that must be released first before pulling on the connector. The proper procedure is to push slightly IN on the connector, then squeeze the tab, then pull the connector out.
3.2.Incoming Power Circuit
AC Power Cord
The Power Cord performs one basic function: to deliver the AC power from the power source to the projector. It must be configured to meet the Electrical Specifications for the region the projector will be used. The Power Cord type is NEMA
AC Circuit Breaker
The AC Circuit Breaker has two basic functions: one is to connect and disconnect electrical power from the projector, the second is to protect the projector from
When the AC Circuit Breaker is in the OFF position, no electrical energy will reach any part of the projector except for the AC Circuit Breaker. When the AC Circuit Breaker is in the ON position, electrical energy goes to the AC Line Filter and on to the Low Voltage Power Supply and Arc Lamp Power Supply. When the AC Circuit Breaker is in the ON position but the projector has not received the POWER ON command either from an IR Remote Control or from a PC or Laptop computer, the projector is in Standby mode. In the Standby mode, the +5.1 V Standby and the +24 V Standby Voltages maintain power to the CPU chips on the System Controller PCB, the IR Detectors, and to the cooling fans.
The AC Circuit Breaker is rated at
The power requirements of the Model 250 Projector are
AC EMI Filter
The AC EMI
Model 250 Service Manual |