Great price for the manual and easy to locate on the site and download. I would buy again.
Text excerpt from page 7 (click to view)
Front Control locations and functions
For an optimized adjustment of the picture following controls are available at the front.
POWER. Press this knob, the green LED lights and the power is ON. Press this knob again, the green LED disappears and the power is OFF. CONTRAST Used to adjust the picture contrast level. BRIGHTNESS Used to adjust the overall screen brightness as a compensation for ambient light. "+" or "-" Press "+" or "-" to adjust the selected function. SHIFT key To select the level of function. "Shift" LED off - Control is on first level "Shift" LED on - Control is on second level