PHILIPS TC8276X
Manual de Usuario

Freeze Mode When any of the FREEZE buttons are pressed, the VIDEO OUT, and QUAD VIDEO OUT monitors will freeze the video image corresponding to the button(s) pressed, and flash the LED above the FREEZE button(s). When a quadrant is frozen, a flashing icon will be displayed in that quadrant on both the VIDEO OUT, and QUAD VIDEO OUT monitors. The VIDEO OUT monitor will also display the flashing on-screen text FRZ in each of the frozen quadrants. The following keys are functional when in the FREEZE Mode: SEQUENCE will switch the VIDEO OUT monitor to the Sequence Mode. QUAD will switch the VIDEO OUT monitor to Quad Screen Mode. FULL VIEW will switch the VIDEO OUT monitor to a full screen display of the video that corresponds to the FULL VIEW button pressed. The FULL VIEW LED that corresponds to the video displayed on the VIDEO OUT monitor will light. If the selected video is frozen, the frozen video will be zoomed to fill the entire screen on both the VIDEO OUT, and QUAD VIDEO OUT monitors. The text ZOOM FRZ will be displayed on the VIDEO OUT monitor. A flashing icon will be displayed on the QUAD VIDEO OUT monitor. Subsequent pressing of the corresponding FULL VIEW button will toggle between the frozen image and a live image on the VIDEO OUT monitor and toggle between the full screen frozen zoomed image and the quad view on the QUAD VIDEO OUT monitor. FREEZE will clear the frozen image corresponding to the button pressed. Alarm Mode An alarm event is triggered when a contact closure is applied to one of the four external alarm input lines; see Pinouts - Alarm/Accessory illustration. When an alarm event is triggered, the VIDEO OUT monitor will display the full screen video of the camera in alarm. In the event of multiple alarm inputs, the VIDEO OUT monitor will sequence between each alarmed video at a dwell time of two seconds. The flashing on-screen text ALARM is added to the display of the video inputs for which there is an alarm event. The QUAD OUT monitor will display a quad view with a frozen image of the camera that is in alarm. If the Quad Sequence is enabled (See Quad Sequence Enable), the quad view, with the frozen image, will be added to the alarm sequence on the VIDEO OUT monitor. If the camera input was frozen prior to the alarm, the display will flash on-screen text OLD FRZ along with the ALARM text. In the alarm mode, the FREEZE buttons are not functional. Any OLD FRZ images can not be cleared until the alarm clears. The alarm event will last for the duration of the contact closure with a minimum duration of 10 seconds (alarm

capture time). An alarm relay output provides a contact closure for the duration of the alarm event. See Pinouts - Alarm/Accessory illustration. The following keys are functional for the Alarm mode: SEQUENCE will clear all alarm events and put the system back to previous mode before the alarm(s) occurred. QUAD will clear all alarm events and put the system back to previous mode before the alarm(s) occurred. FULL VIEW will clear all alarm events and put the system back to previous mode before the alarm(s) occurred. Video Loss This unit has the ability to detect the loss of sync caused by a cut or disconnected video cable. If the sync is lost for any camera for which the video loss function is enabled, the video loss open collector transistor output will be asserted low for 10 seconds, after which it will be +5 volt logic-high. When there is a video loss, the unit will display the quad video screen format on the VIDEO OUT monitor; the following information will be displayed in each quadrant that has a video loss: The on-screen text VIDLOSS is displayed in the quadrant. The flashing icon is displayed on both the VIDEO OUT and QUAD VIDEO OUT monitors. The FREEZE LED corresponding to the video input under video loss flashes. NOTE: If the unit is powered up while there is loss of sync, the flashing icon will not be visible since the quadrant will become white and be the same color as the flashing icon. CAUTION: The following special setups should only be done by an authorized service center or installer.

Quad-Sequence Enable
The quad screen will be sequenced with the four fullscreen video inputs with resistor R259 installed. If R259 is removed, the quad screen will not be included in the sequence. As factory default, the unit is shipped with R259 installed. The cover must be removed to access R259. Refer to Cover Removal and Dip Switch and Resistor Locations - TC8276 Series illustrations.

Video Loss Defeat
Internal DIP switch S201 can be used to defeat the video loss function of the video inputs. The cover must be removed to access S201. See Cover Removal and Dip Switch and Resistor Locations - TC8276 Series illustrations. This is used if less than four cameras are to be connected to the unit. The factory default is video loss enabled for all four video inputs.

9