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7. Power on Sequence
7.1 Open the package, check appearance, switch, key button, socket, and interface port on front
and back panel.
7.2 Turn power switch on the “OFF” position and connect power cord to power source.
7.3 Connect audio, video, RF cable on the back panel. Connect RF out port to a 50 Ohm dummy
load or antenna through a cable.
7.4 Turn power switch to “ON” at the back panel, then turn power switch to “ON” at the front
panel.
7.5 Turn off RF power.
7.6 Set working parameters.
7.7 Turn on RF power.
8. System Control Logic
8.1 RF Output Control
This TV transmitter’s RF output can be controlled by RF Switch, which is on the “Main Page”
of the LCD.
When RF Switch is OFF, turn off RF power.
When RF Switch is ON, and the video signal input is normal, turn RF power on.
8.2 Remote Control
When remote control is enabled, remote LED on front panel is lit. And power output is
controlled by remote host and can not be changed locally except “Remote” flag is disabled.
RS232 or RS485 are used for remote control. User can ask either of this two. Before enabling
remote control, baud rate and device address should be properly set.
8.3 System Protection
In some urgent cases such as exceeded forward power, reflect power, current and over
temperature, system will reboot. If it is failed successive 3 times, the system will automatically
turns off RF power and just acts display function.
