ViewSonic VX500 Service Manual - Page 10

FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls Power Switch (Front Head) Power Control, soft Power Switch. Power LED (Front Head) Green - ON Orange - Active Off Dark = Soft Power Switch OFF Front Panel Controls (Head) Button 1 Down arrow button Up arrow button Button 2 Audio buttons: Mute, volume down & up Power Short Cuts Function from the button(s) [DOWN] or [UP] arrow = to activate contrast and brightness [2] = Input toggle (Analog or Digital) [DOWN] + [UP] arrows = recall at specific function or adjustment OSD Lock short cuts function for the buttons 1. The OSD lock will be activated by pressing the front panel control buttons "(1), & (up)" for 10 seconds. If the user then tries to access the OSD by pressing any of the buttons "1", "down", "up", "2" a message will appear on the screen for 3 seconds showing "OSD Locked". The OSD lock will be deactivated by pressing the front panel control buttons "(1), & (up)" again for 10 seconds. Note 1: Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate "OSD Locked". 2. The power button lock will be activated by pressing the front panel control buttons "(1), & (down)" for 10 seconds. Locking the power button means that the user won't be able to turn off the LCD while the power button is locked. If the user presses the power button while it is locked, a message will appear on the screen for 3 seconds showing "Power Button Locked". It also means that with the power button locked, the LCD would automatically turn back "On" when power is restored after a power failure. If the power button is not in the locked mode, then power should return to it's previous state when power is restored after a power failure. The power button lock will be deactivated by pressing the front panel control buttons "(1), & (down)" again for 10 seconds. Note: Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate "Power Button Locked". Control Type OSD Controls Digital with an OSD. OSD Functions - Contrast, Brightness, Auto Image Adjust, H/V Position, H. Size, Fine Tune, Color Adjust (9300, 6500, Video Enhanced Mode 1, 2, 3, user adjustment), sharpness (on/off), information, Language (English, Francais, Deutsch, Espanol, Italiano, Suomi), OSD position, OSD time out, Resolution Notifier, Memory Recall. Memory Recall is to recall the following functions to factory setting: Contrast, brightness, h/v size, h position, color temperature @ 6500K, OSD position, sharpness, and OSD timeout. OSD Auto Save ELECTRICAL REQUIREMENTS Horizontal / Vertical Frequency Horizontal Frequency ViewSonic Corporation The OSD shall save new settings when it is turned off the by the user or when it times out. There shall not be a separate save. 30 - 60kHz 7 Confidential - Do Not Copy VX500-1