LKV841 8K 4X1 HDMI Switch User Manual
- June 17, 2024
- LKV
Table of Contents
LKV841 8K 4X1 HDMI Switch
Important Safety Instructions
- To prevent electric shock, please ensure that all devices are properly grounded.
- Do not place this device near or over a radiator or heat register, or where it is exposed to direct sunlight.
- Place the device in a well-ventilated area, do not block any ventilation openings.
- Do not expose this device to rain or place it near water. Any liquid that goes into the device may cause a failure, fire, or electric shock.
- Do not place the device on an uneven or unstable surface. The device may fall resulting in a malfunction.
- Never insert anything metallic into the open parts of this device. This may cause a danger of electric shock.
- The device should be repaired only by a qualified technician.
- If a third-party power supply is used, please ensure that the power supply specifications meet the product requirements.
Introduction
This is a 4-in-1-out 8K switch. It supports 4 HDMI signal inputs and 1 HDMI
signal output, the highest resolution is 8K@60Hz and is backward compatible.
A variety of control methods (IR remote control and RS-232 switch) can easily
switch the content of the 4 HDMI signal sources to the display. The product is
widely used in security monitoring, media entertainment, broadcasting, command
centers, etc.
Features
- Support 4 HDMI signal input and 1 HDMI signal output.
- 8K@60Hz resolution and backward compatible.
- Multiple switching modes: IR remote control, RS-232 command control.
- Support additional digital audio output from S/PDIF port.
- Firmware can be upgraded through Micro USB.
- Support EDID passthrough and HDMI 3D, VRR (Free Sync, G-sync).
- HDR10+, Dolby Vision, HLG, YUV4:4:4 supported.
- Lightning protection, surge protection, ESD protection.
- 24/7 working.
Package Contents
Installation Requirements
| Item | Description | Requirement |
|---|
Signal source
device
| PC, DVD, PS4, NVR, etc. with HDMI port| HDMI 2.1 cable ≤ 5m
Display
device
| 8K TV, projector, LED screen, etc. with HDMI port| HDMI 2.1 cable ≤ 5m
Panel Description
①| Power indicator (orange)| The indicator will turn on when the power is
turned on
---|---|---
②| HDMI input indicator (blue)| Corresponding to HDMI input 1, 2, 3, 4
respectively
③| IR receiving window| Receive IR signal
④| Switch button| Press the button to switch the input of the signal source
⑤| RS-232| RS-232 command control
⑥| S/PDIF| Output digital audio signal
⑦| Micro USB| For firmware upgrade
⑧| HDMI input| Connect with HDMI source device
⑨| HDMI output| Connect with HDMI display device
---|---|---
⑩| DC 5V| Connect with DC5V/1A power adapter
Remote Control
- “<” and “>” button, to choose channel forward or backward.
- “1-4” number buttons, to choose any source device directly.
Installation
Connection Diagrams
Connection Instructions
- Connect the source devices to the HDMI input ports with HDMI cables.
- Connect the display device to the HDMI output port with HDMI cable.
- If need an additional audio output, connect the digital audio device to the S/PDIF port.
Note: You can switch the signal source by pressing the switch button or use the remote control.
RS-232 control
- Baud rate: 9600
- Data bits: 8
- Stop character: 1
- Parity: none
/| HDMI1
input
| HDMI2
input
| HDMI3
input
| HDMI4
input
---|---|---|---|---
PAXR\n| PA1R| PA2R| PA3R| PA4R
FAQ
Q: No image output?
A:
- Check the power supply and make sure the power indicator is on.
- Check if the HDMI cables connected well.
- Check and make sure the TV has been set up to the right channel.
- While connect with PC or laptop via HDMI, please make sure the output mode is mirror or extend
Q: Picture quality is not fluent and stable?
A:
- Please check and make sure all HDMI cables are connected well.
- Try to connect the signal source directly to the display device, or try to change the signal source and HDMI cable and test again.
- Please use high-quality HDMI 2.1 cables when transmitting 8K content.
Specification
| Items | Specification |
|---|---|
| HDMI version | Support HDMI 2.1，backward compatible |
Support HDCP 2.3，backward compatible
HDMI port| HDMI input X4，HDMI output X1
Transmission speed| 48Gbps
Video bandwidth| 1200MHz
| 7680×4320@24/25/30/50/60Hz,
| 4096×2160@24/25/30/50/60/100/120Hz,
| 3840×2160@24/25/30/50/60/100/120Hz, 3440×1600@60Hz,
HDMI resolution| 3440×1440@60Hz、2560×1600@60Hz,
| 2560×1440@60/100/120Hz, 2560×1080@60Hz,
| 2048×1080@60Hz, 1920×1440@60/100/120Hz,
| 1080p@50/60/100/120Hz, 1080i@50/60Hz, 720p@50/60Hz
Supports audio formats
| S/PDIF output| LPCM5.1, DTS 5.1, Dolby 5.1
HDMI output| Dolby Atmos, Dolby Digital 7.1CH, Dolby True HD, DTS:X, DTS-HD,
LPCM 7.1CH, etc.
RS- 232| 3 pin (GND/RxD/TxD) , baud rate 9600
Voltage/Current| DC5V/1A
Power consumption| < 2.0W
Working temperature| -20℃~60℃
---|---
Storage temperature| -30℃~70℃
Humidity
(no condensation)
| 0~90%RH
Housing| Iron
Color| Black
Weight| 275g
Dimension| 160.0(L) x 58.0(W) x 20.6(H) mm
Protection
| ESD protection
1a Contact discharge level 2
1b Air discharge level 3 Implementation of the standard: IEC61000-4-2
Lightning protection, Surge protection
Disclaimer
The product name and brand name may be registered trademark of related
manufactures. ™ and ® may be omitted on the user manual. The pictures in this
user manual are just for reference. We reserve the rights to make changes
without further notice to a product or system described herein to improve
reliability, function or design.