J-TECH JTECH-4K88-EX-RX User Manual

Problems
Potential Causes
Solutions
Power Indicator
remains off when
powered on.
Fail or loose power
connection.
Check whether the cables
are connected correctly
EDID management
does not work
normally.
The HDMI cable is broken
at the output end.
Change for another HDMI
cable which is in good
working condition.
There is a blank
screen on the display
when switching.
The display does not
support the resolution of
the video source.
Switch again.
Manage the EDID data
manually to make the
resolution of the video
source automatically
compliant with the output
resolution.
Cannot control the
device by control
device (e.g. a PC)
through RS232 port.
Wrong connection.
Check to ensure the
connection between the
control device and the unit.
Wrong RS232
communication
parameters.
Type in correct RS232
communication
parameters: Baud rate:
9600; Data bit: 8; Stop bit:
1; Parity bit: none.
Broken RS232 port.
Send it to authorized
dealer for checking.
If your problem persists after following the above troubleshooting steps, seek further
help from authorized dealer or our technical support.
TROUBLESHOOTING & MAINTENANCE
36

J-TECH JTECH-4K88-EX-RX Specifications

General

Brand	J-TECH
Model	JTECH-4K88-EX-RX
Category	Switch
Language	English