J-TECH JTECH-4K88-EX-RX User Manual (English)

Questions and Answers:

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davisderekAug 2, 2025
What to do if there is no output image when switching on my J-TECH Switch?
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  Tyler SparksAug 2, 2025
  If the J-TECH Switch displays no output image when switching, verify that there is a signal at the input/output end using an oscilloscope or multimeter. Ensure the connection is secure. If the input source uses HDCP, enable HDCP compliance by sending the command /%[Y]/[X]:1 or change the HDCP compliance status in the GUI. Also, the display might not support the input resolution, so switch to another input source or enable the display to learn the EDID data of the input.
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Derrick McphersonAug 6, 2025
What to do if I cannot control the J-TECH Switch via IR remote?
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  weaveranthonyAug 7, 2025
  If you cannot control your J-TECH Switch via the IR remote, replace the battery with a new one. If that doesn't work, the IR remote might be broken and needs to be sent to an authorized dealer for repair. Ensure you are within the effective range and pointing directly at the IR receiver. Also, verify that the IR receiver connected to the IR IN port has a carrier; if not, replace it with one that does.
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Jennifer RobertsAug 11, 2025
Why does the power indicator remain off when my J-TECH JTECH-4K88-EX-RX Switch is powered on?
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  Sean HernandezAug 12, 2025
  If the power indicator remains off when you power on your J-TECH Switch, check whether the power cables are connected correctly. It may be a fail or loose power connection.
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emilykimAug 17, 2025
How to unlock front panel buttons on J-TECH JTECH-4K88-EX-RX Switch?
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  Michael McdonaldAug 17, 2025
  If you cannot control the J-TECH Switch via the front panel buttons, the front panel buttons are locked. To unlock them, send the command /%Unlock; or select unlock in the GUI interface.

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

General

HDMI Version	2.0
HDCP Version	2.2
IR Passback	Yes
Speed	18 Gbps
Power over Ethernet (PoE)	No
Input Voltage	100-240VAC
Resolution Support	4K@60Hz
Transmission Distance	70m
Ethernet Cable	Cat6
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Humidity	20 - 90% RH (Non-condensing)