9 RET-A selector switch [RET A]This switch is used to select the return images to beswitched by RET-A.The return images which have been set on the ROPmenu are allocated to this switch. RET-B selector switch [RET B]This switch is used to select the return images to beswitched by RET-B.The return images which have been set on the ROPmenu are allocated to this switch. CALL LEDThis lights up green when the CALL switch is pressedfrom the ROP, MSU or CCU. CALL switch [CALL]This lights the CALL LED on the ROP or MSU andsounds the buzzer (when ON has been selected as thebuzzer setting). OPT LEDThis indicates the camera’s optical signal receptionstatus. It normally lights up green. When any problem hasoccurred, it lights up red.When a problem has occurred, clean the optical fiberconnector.If the problem is not cleared up, immediately turn off thepower, and contact your dealer. Back tally LED selector switchThis is used to set the back tally LED to ON or OFF. Back tally LEDThis lights when the tally signal is supplied.This lights up red when the R tally signal is supplied,green when the G tally signal is supplied, and red whenboth the R and G tally signals are supplied. RET switching control connector [RET CONT]The cable of the RET switching box (optional accessory)is connected here for controlling the ON/OFF of RET1, 2,3 and INCOM1, 2 MIC. External I/O [EXT I/O]This signal interface connector is designed to supportfuture interfacing with external devices. Camera HD-SDI output1 connector (BNC)[HD-SDI1]The camera HD-SDI images are output from thisconnector. Camera HD-SDI output2 connector (BNC)[HD-SDI2]Camera images, VF images or RET images can beselected on the camera menu to output HD-SDI signalsfrom this connector. Optional video connector (BNC) [AUX]This is an auxiliary input/output connector.The HD analog Y input or Prompt2 output (when the CCUhas a Prompt2 input) can be selected.When a down-converter (optional accessory) has beeninstalled in the camera, this connector can be used as aVBS or D1 output connector. Genlock sync input/PROMPT output connector[PROMPT/GL]When the GL/PROMPT selector switch is set to GL,the reference signal (tri-level SYNC or B.B.) which isused to genlock the camera is input to this connector;Genlock sync signals are input to this connector whenthe CCU is not connected. When it is set to Prompt, thePrompt images input from the CCU are output from thisconnector. GL/PROMPT selector switchThis is used to select the genlock input or the input/output(genlock input and PROMPT output) signals of thePROMPT output connector. Remote connector [REMOTE]The remote operation panel (ROP, optional accessory) isconnected to this connector.The [SYSTEM], [FUNC] and [SD DTL] menus of the ROPcannot be controlled.Neither can the [HEAD POWER], [CHARA], [BAR],[MONO], [SD DTL OFF] and [MONITOR (R/G/B/SEQ/ENC)] switches be controlled. External power supply input connector [DC IN]The input of the external DC power supply is connectedto this connector. (DC 10.8 V to 17 V) MIC1 selector switch [LINE/FRONT MIC/MIC]This is used to switch the input signal to LINE, FRONTMIC or rear MIC.Controls and their functions