Signal source with HDCP,
while the system is set to
HDCP is not compatible
Send instruction HDCP ON to open HDCP
protocol
Control terminal can not
control the machine
Control terminal
communication port
damage
Carefully check whether the communication
serial port loose or damaged
Communication protocol
is not set
Check as follows: baud rate: 9600 data bits:
8 stop bit: 1: no parity bit
Panel buttons,
communication ports,
remote control can not
control
Internal damage to the
host
Send to professional maintenance point