the RF output of the preceding
unit to the TV input (loop-through)
of the next unit (see right
illustration).
CHAPTER 3 Operations and Management
SIGNAL-400 is controlled and managed through the key board and LCD display.
LCD Display – It presents the selected menu and the parameter settings. The backlight in the
display is on when the power is applied.
LED – These lights indicate the working status
Power: It lights on when the power supply is connected.
Alarm: It lights on when the there is error, such as the signal source loss.
Lock: It lights on when the signal source connected and goes off when the signal lose.
Left/Right/Up/Down buttons – Use these buttons to turn the screen pages, shift the target
items by moving the triangle, or change the parameter settings in the program mode.
Enter – Use this button to enter a submenu or save a new setting after adjustment; press it
to start adjusting the value of certain items with Up/Down buttons when the corresponding
underline flash;
Menu – Press this button to step back
Lock – Locking the screen / cancelling the lock state, and entering the main menu after the
initialization of the device. After pressing lock key, the system will question the users to save