151. Installation1-3. How to install the option boardsThe option boards are installed in the mainframe.For details, refer to the operating instructions of the option board concerned. The instructions set forth in the operating instructions of the option boards listed below describe the steps totake when the boards are to be installed in the AV-HS400AN or AV-HS400AE.When reading these instructions, change the wording used for all references to this model and its slots with theactual model and actual slots.Option boards and wording used in operating instructions When the option boards are to beinstalled in the AV-HS450EAV-HS04M1, AV-HS04M2,AV-HS04M3, AV-HS04M6SLOT 1 INPUT 5, INPUT 6 SLOT A IN A2, IN A1SLOT 2 INPUT 7, INPUT 8 SLOT B IN B2, IN B1AV-HS04M4, AV-HS04M5,AV-HS04M7SLOT 1 OUTPUT 3, OUTPUT 4 SLOT A OUT A2, OUT A1SLOT 2 OUTPUT 5, OUTPUT 6 SLOT B OUT B2, OUT B1Changes in wording used for setting switch SW501 of AV-HS04M6Wording used in operatinginstructionsWhen the option board is to beinstalled in the AV-HS450ESwitch No. Switch No.1 Y/C separation mode(INPUT5, 7)1 Y/C separation mode(IN A1, IN B1)2 23 Y/C separation mode(INPUT6, 8)3 Y/C separation mode(IN A2, IN B2)4 45 NTSC SETUP 5 NTSC SETUP6Reserved6Reserved7 78 8 Be absolutely sure to ask your dealer to do the job of installing or removing the option boards. Before installing or removing an option board, turn off the power, and disconnect the power plug. Before coming into physical contact with the option board, touch your hand to metal that has been groundedto discharge the static electricity in your body.A safe way to proceed is to wear an anti-static wrist strap.The option board may be damaged if you touch the board with static still in your body. Avoid damage to the option board by not dropping it or subjecting it to strong shocks or vibrations. After removing an option board, be absolutely sure to attach the blank panel. When installing or removing an option board, take care not to hurt yourself on the edges or metal parts of theboard.Notes