input source signal detected, it will flash off at an interval of 125ms, and this status will last
until an input source signal is detected. If the input source signal is lost during usage , it will
continue to blink.
3. When the BLACK button, DVI, HDMI, DP, EXT, VGA lights are all off, the BLACK light is
always on, press the BLACK button again, the BLACK light is off, and then proceed to step 2
according to the input source light of the current window Light status.
4. After pressing the FREEZE button, the button light is always on, press it again to go out.
5. LOCK
，
LOCK state is always on, and off when unlocked.
6. REV, currently has no function and does not support light status.
7. WIN1, WIN2. Which one of the windows is currently selected by TV, then which button light
will be lit. To switch between different windows, the button light of the input source needs to
synchronize the input source type of the current window.
8. When power off and restart, the following states need to be saved: the input source type of the
current window, the state of the BLACK light, the state of FREEZE, the selection state of
win1, win2.
Enter/Exit keypad lock explanation
1. Press LOCK to lock keypad.
2. Menu newly add function of keypad lock, could be set to turn on or turn off. If turned on, the
internal timer in the MCU will lock the keypad after the set time is recorded. At the same
time, the lock button lights up.
3. When in the locked state, press the LOCK key to unlock directly. If the timer automatic lock
button function is turned on, the timer will restart to count again.
