Optoma W501 User's Manual - Page 43
Audio Settings - rs232
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Security Timer Use this function to set the how long (Month/Day/Hour) the projector can be used. Once this time has elapsed you will be requested to enter your password again. Change Password First time: 1. Press "Enter" to set the password. 2. The password has to be 4 digits. 3. Use number button on the remote to enter your new password and then press "Enter" key to confirm your password. Change Password: 1. Press "Enter" to input old password. 2. Use number button to enter current password and then press "Enter" to confirm. 3. Enter new password (4 digits in length) using the number buttons on the remote, then press "Enter" to confirm. 4. Enter new password again and press "Enter" to confirm. If the incorrect password is entered 3 times, the projector will automatically shut down. If you have forgotten your password, please contact your local office for support. Note Password default value is "1234" (first time). Projector ID ID definition can be set up by menu (range 0~99), and allow user control an individual projector by RS232. Audio Settings Internal Speaker Use the internal speaker of projector. Mute Cut off the sound temporarily. Volume Adjust the volume level for Audio or Mic input source. EN-43