10-6 Troubleshooting of Regular Malfunctions
10.5.2 Key Points Supporting Troubleshooting
Key Points Supporting Troubleshooting
Working condition of the control panel
Confirm if the USB main device is functional
since the control panel is connected by internal
USB cable
Working condition of each USB port
Working condition of Video, S-video and
VGA video interfaces
Printing condition of video printer
Check if output of connected video printer is
normal
10.5.3 Troubleshooting
LCD displays normally;
NO video printer output when
press <print> on control panel
Remote printing control failure
or video output failure if there is
no user-defined key failure.
Two speakers have no sound
Only one speaker has no sound
USB device cannot be
recognized while connecting to
the USB port
Control panel works well
Network disconnected or
abnormal
CPU module or IO board
malfunction if there is no
network or setting failure.
Confirm by replacing
CPU module or IO
board.
10.6 Control Panel
10.6.1 Module or Board Related