Yamaha IMX644 Owner's Manual - Page 10
Rear Panel, STEREO INPUT REC OUT
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Controls and Functions Rear Panel NOTE • Refer to "Connectors and Cables" on page 13 for details on connectors and cables for use with the IMX644. 1 3 5 7 89 2 4 6 ) 1 [AC IN] Connector Connect the supplied AC cable here. First connect the AC cable to the IMX644, then plug it into an appropriate AC outlet. 2 Earth Screw For maximum safety, please earth the unit properly. The supplied AC power cable is a 3-wire type, so if the AC outlet used is properly earthed the IMX644 will be earthed as well. Hum and interference may by further reduced in some cases by also connecting the earth screw to an earth point. 3 [REMOTE] Connector This RS-232C connector allows communication with a computer running the IMX644 Manager application or external controllers. The [REMOTE] connector cannot be used simultaneously with the front-panel [USB] connector. If both connectors are connected, the front-panel [USB] connector takes priority. 4 [GPI] Connector This 25-pin D-sub GPI (General Purpose Interface) connector provides eight input ports and eight output ports for a variety of control signals, plus one dedicated output port that indicates the unit's power ON/OFF status. ■ STEREO INPUT Section 5 L/R Connectors 1, 2, 3, 4A, and OPTICAL 4B The output from CD players and other stereo line-level sources can be connected to these stereo inputs. NOTE • The 4A (L/R) connectors and 4B (OPTICAL) connector cannot be used simultaneously. ■ REC OUT Section 6 L/R Connectors A and OPTICAL B A CD recorder or other stereo recorder can be connected here. NOTE • A feedback loop can occur if a CD recorder or similar device is connected to both a STEREO INPUT and the REC OUT connectors. In such cases use the IMX644 Manager application MATRIX controls to turn the OUTPUT channel to REC OUT connector assignment off. ■ MONO INPUT Section 7 Euroblock Connectors Microphones and similar mono sources can be connected to these balanced input connectors. High-quality head amplifiers are built in. Refer to page 13 for instructions on connecting to the Euroblock connectors. 8 [PAD] Switches When ON, input to the corresponding mono channel is attenuated by 34 dB. The pads are ideal for matching input sensitivity to the output from wireless microphone tuners and similar highoutput source devices. 10 IMX644 Owner's Manual