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Front Panel Controls
POWER (STANDBY) SWITCH ON FRONT PANEL
When you plug the ATP 8500 into a “live” mains power wall socket and turn the rear panel POWER switch ON, it will
power up in “standby” mode. In this mode the internal circuit of the ATP 8500 is powered but inactive.
When you press the front panel power button (which effectively functions as a “standby” switch), the ATP 8500
circuitry is activated and the INPUT last used, the MODE last used, and the volume level (unless it was too loud) are
automatically selected. The LINE outputs will be muted for a few seconds. If the volume is turned down and you are
next to the ATP 8500, you may hear some slight “clicking” noises. This is normal, and the clicking noises you hear are
from the switching relays. When you press the front panel power button again the device will return to standby mode
and the LED above the power button will glow red again.
NOTE: Always switch the ATP 8500 to STANDBY before switching the POWER OFF at the rear panel.
DANGER: In the STANDBY mode, the internal circuitry is still “live”.
Therefore, follow all safety precautions to prevent electric shock or fire!
PREVIEW ON/OFF
When you press this key once, the status of the ATP 8500 will be displayed on the OSD. The status display shows
selected source, audio and video signal type, audio output type and volume information. The status display disappears
after ten seconds or when you press the same key again. Note: There will be no status information if you have selected
“Temp.Display-Off” from the OSD setup menu.
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