Key Digital KD-VW4x4ProK User manual

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com
Rev 1.0 –Jul, 2022
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4K UHD 4 input 4 output video wall processor and seamless
matrix switcher, includes 4 Rx units. Features 5 video wall
modes, independent AV routing, mirrored HDMI and
UHDoTP outputs.

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Rev 1.0 –Jul, 2022
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Table of Contents
About KD-VW4X4PROK 3
Quick Setup Guide 5
Connect 5
Configure 5
Control 7
Application Example 11
KD-VW4x4ProK Connections and LEDs 11
KD-EXMLVRx Connections and LEDs 11
Front Panel Control & LCD 17
IR Remote Control 18
Web User Interface 19
Video Wall Modes 21
Panel Flip 24
Bezel Control 25
Text Overlay 26
TCP/IP and RS-232 Commands 27
Integrating with AV over IP Systems 32
Specifications 33
Warranty Information 34
Product Warnings & Safety Instructions 34

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About KD-VW4x4ProK
Key Digital’s KD-VW4x4ProK is a 4 HDMI input with 4 HDMI + 4 UHDoTP mirrored output video wall processor
and seamless matrix switcher with independent audio routing.
KD-VW4x4ProK is perfect for video wall and large format viewing applications like Bar & Restaurant, Sports &
Gaming Caves, Digital Signage, House of Worship, Entertainment Centers, Museums, E-Sports, and more.
KD-VW4x4ProK has been specially engineered to cost-effectively create video walls with consumer panels and
monitors. The Panel Flip feature rotates the image 180 degrees on the desired outputs, enabling the top row of
monitors to be installed upside down, conjoining the narrow frame sides of the displays. Bezel Compensation
allows the image to be extended off the screen to create fluid screen transition and five supported video wall
layouts (2x2, 4x1, 3x1, 2 mirrored sets of 2x1, and 1x4) make KD-VW4x4ProK the ideal choice to build video
walls in any application and price point.
Mirrored HDMI and CAT6 AV outputs enable up to eight connected displays via the four included Rx units- Ideal
for dual video walls showing the same thing at the same time.
Alternatively, KD-VW4x4ProK may be used as a 4x4 video matrix so users may view their four connected video
sources on their four/eight connected displays. Source selection in video wall or matrix modes is completely
seamless and 4K down-conversion features enable integration with legacy 720p and 1080p displays for further
savings by the end-user.
4K / UHD content up to 3840 x 2160p 4:2:0 at 60fps is supported, as well as independent audio routing with de-
embedding on analog balanced/un-balanced and digital optical connections and surround formats up to 5.1
Dolby® / DTS™. Audio from any source may be selected while in video wall mode.
KD-VW4x4ProK joins a suite of Key Digital IP enabled products that are Web UI and iOS app ready. The
engineers at Key Digital have created an easy way for installers and users to switch inputs and control Key
Digital systems as if you were standing in front of the unit - all from the PC or portable device. IR from a control
system may be input at KD-MLV4x4Pro and extended to control the displays connected to the KD-EXMLVRx
units.
Key Features
•Video Wall Processing: Transform consumer and professional displays into a video wall with five video
wall modes: 2x2, 4x1, 3x1, 2 sets of 2x1, 1x4
•Seamless Switching: Un-interrupted screen transitions during source selection
•Built-In UHDoTP Tx with PoC: 4 included KD-EXMLVRx units are powered by KD-VW4x4ProK
•Dual Video Wall / Mirrored Outputs: Simultaneously active HDMI + UHDoTP mirrored connections per
output show same AV signal at same time for a total of 8 possible displays connected
•Independent Audio Matrix: Audio output ports may be routed separately from HDMI & UHDoTP ports.
Audio from any source may be selected while in video wall mode.
•Panel Flip: Enables use of consumer displays by mounting top row upside down and conjoining narrow
frame side.

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•Bezel Compensation: Create a fluid screen transition by removing pixels from top, bottom, left, and
right border independently
•Video Resolution: Up to 3840 x 2160p 4:2:0 at 60fps supported on inputs & 3840 x 2160p 4:4:4 at
30fps supported on outputs
•Signal Extension over CAT:
o4K/UHD: Up to 35m (115ft) using CAT5e/6, up to 40m (131ft) using CAT6A STP
o1080p: Up to 50m (164ft) using CAT5e/6, up to 60m (197ft) using CAT6A STP
oMinimum: 5m (17ft) CAT5e/6 cable length required for all resolutions
•Text Overlay: Assigned name of each output may be displayed in each window. 16 Characters
maximum with variable sizing and location settings.
•4K Down-Convert: Integrate 4K sources with legacy 1080p & 720p displays
•HDCP 2.2 Licensing: Fully licensed and compatible with HDCP 2.2
•Built-In Test Patterns: 9 selectable test screens help expedite installation
•IR Two-Way: Extend IR via Rx units to control displays or collect IR from remote to control a source at
head-end
•Web UI: Control AV routing and other basic functions from any web browser
•Audio De-Embed: 6 pin balanced / un-balanced and digital optical outputs
•Dolby Digital® & DTS™ Audio: Supports 2-channel and multi-channel surround formats up to 5.1
Dolby® / DTS™
•Full Buffer System™: Manages TMDS re-clocking / signal re-generation, HDCP authentication to
source & display, and EDID handshake to source
•EDID Management: Internal library with 8 EDID AV handshakes per input, in addition to ability to copy
from any connected display / output
•TMDS Re-clocking: Supports long HDMI connectivity using Key Digital® HDMI cables
•Deep Color Support: Up to 8 bits/color
•Control: Front panel buttons, IR, RS-232, TCP-IP and Web Control
•Key Digital® App Ready: Can be controlled over TCP/IP via Key Digital® App
•Control System Support: Key Digital® app ready. Key Digital Management Software™ Pro (KDMS™
Pro) ready, Compass Control® Pro ready. Fully controllable by all IR, RS-232, and TCP/IP supported
control systems via open API.
Accessories
•(1) Power supply, 12V 5A screw-type,
model KDPS60W12VC
•(1) IR Remote Control, model
KDRMVW44K
•(4) UHDoTP Rx units, model KD-EXMLVRx
•(4) IR Emitters with 3.5mm mono end. 6ft.
•(4) IR Sensors with 3.5mm 4 conductor
end. 6ft.
•(4) 6-pin Phoenix connector for audio, blue
•(1) 6-pin Phoenix connector for unit control
•(1) USB data cable, Micro to A, 6ft, USB 2.0
•(2) Rack ears

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Quick Setup Guide
Begin with the KD-VW4x4ProK and KD-EXMLVRx units, all source, display devices, audio system, and
any other connected peripherals powered off.
Connect
1. Connect video sources into the HDMI input ports
2. Connect video displays to the HDMI output ports on the main and/or Rx units
3. Connect CAT6 cabling from the main unit’s UHDoTP outputs to the RX unit’s UHDoTP input
4. Connect audio using the digital or analog outputs ports located on the main unit.
5. Connect Control System. For KD-App control and/or IP control from a control system or PC, connect
TCP/IP port to network. RS-232 and IR control may also be utilized
6. (Optional) Connect IR to / from Rx units
a. If controlling displays: Connect from control system into IR In/Out ports of main unit and
connect IR emitter to the IR Out port of the respective Rx unit (1→1 … 4→4).
b. If controlling video source: Connect IR sensor to Rx unit to collect line-of-site IR from a
remote. Connect IR emitter to the respective IR In/Out port of main unit (1→1 … 4→4).
7. Connect power. Screw-in power supply to the KD-VW4x4ProK unit, and then connect power to outlets.
8. Power on sources, displays, and audio systems to begin use.
Configure
Configure KD-VW4x4ProK with Key Digital Management Software Pro (KDMS Pro). Download HERE
1. Connect to KD-VW4x4ProK from your PC using the USB micro port on the face of the unit
2. Open the KDMS Pro software and perform a USB scan (2a). Choose “NO” and Start Scan when the
USB Device Scan prompt appears (2b)
3. Choose the detected device from the Devices window (fig. 3)
4. Enter the desired unit name (4a), IP address (4b) and IP gateway (4c) settings for the unit
5. Save (5)
6. Select the desired EDID handshake for each video source (6)
7. Enter the desired Input and Output names and press Update Names
8. (Optional) Use the Output Settings section to set the video output format for 4K to 1080p down-convert,
establish IR signal flow (default is IR In on the KD-VW4x4Pro4K and IR out on the Rx units to control),
and to choose a test pattern for outputting on your display if desired.

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9. Your unit is now ready to control from the web UI, KDMS Pro control panel, KD-App, or by professional
control system. Full access to all settings/commands is achieved via terminal session using Tera Term
or PuTTy software.

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Control
Option 1: Control via Remote Control
Refer to IR Remote Control section for complete control options via IR
•To enable video wall in desired mode (see below guide)
1. VW Mode button (section E)
2. VW Layout button 1-5 (section D)
Note: Source 1 is the default video wall source
•To select video wall source:
1. VW button (section A)
2. Input button (section C)
•To set Matrix mode:
1. Matrix button (section E)
Note: Source 1 is the default source for all outputs
•To matrix HDMI AV + External Audio:
1. A/V button (section A)
2. Output button (section B)
3. Input button (section C)
Note: When selecting a new source for while Video Wall mode,
only audio de-embed port #1 routes to the video wall source to
provide an audio zone synched with the video wall while
enabling the other three audio zones to be used for other
purposes.
•To matrix HDMI AV only:
1. HDMI button (section A)
2. Output button (section B)
3. Input button (section C)
•External Audio Source Selection:
1. Audio button (section A)
2. Output button (section B)
3. Input button (section C)
Note: this may be used while in Video Wall or Matrix modes

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Option 2: Control via KD-App, KDMS Pro™
KD-VW4x4ProK is controllable by Key Digital’s user-friendly iOS App
(downloadable in the App Store) or Key Digital® Management Software™ Pro
(downloadable here) for PC.
1. Connect and configure your KD-VW4x4ProK as described in the Connect &
Configure sections
2. Download and open KD-App and/or KDMS™
3. Ensure the iOS device and/or PC computer are on the same network with
KD-VW4x4ProK
4. Perform a network scan in the KD-App/KDMS™
5. Select and control the selected KD-VW4x4ProK
6. To enter KDMS Pro end-user mode, key CTRL + ALT + N after selecting
the unit in the devices tree.
Note: When selecting a video wall source while in the Video & Audio tab, the audio from the video wall source
is routed on external audio output 1
Control UI layouts. The assigned device, source, and display names show for a user-friendly layout.

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Option 3: Control via web UI
Access KD-VW4x4ProK’s web UI from any phone, tablet, or
PC. The web UI shows the input, output, and unit name, for a
user-friendly experience.
1. Connect and configure your KD-VW4x4ProK as
described in the Connect & Configure sections
2. Ensure the PC, phone, or tablet are on the network
with KD-VW4x4ProK
3. Enter IP Address of KD-VW4x4ProK unit into the web
browser search bar
4. Enter the password. Default password is “admin”
5. Use the web UI to choose video wall layout (5a) and
video wall source selection (5b) or select the source for each HDMI (5c) and/or external audio output
independently (5d).
Note: When selecting a video wall source while in the Video & Audio tab, the audio from the video wall source
is routed on external audio output 1

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Option 4: Control via professional control system
KD-VW4x4ProK allows control over serial interface for bi-directional communication.
•For RS-232 control use pins 4, 5, and
6 of the Unit Control port. Baud Rate is
57,600
•For TCP/IP control the default static IP
address is 192.168.1.239, with port 23.
•KD-VW4x4ProK supports KD’s standard matrixing protocol, so if you have controlled a KD matrix with a
third-party control system before, you will likely have success with the same driver/module.
a. Video Wall / Matrix Switching HDMI AV + External Audio together
i. SPOxxSIyy xx = output (01 if in video wall mode, or 01-04 in matrix mode),
yy = input (01-04)
Note: When selecting a new source for while Video Wall mode, only audio de-embed port #1 routes to
the video wall source to provide an audio zone synched with the video wall while enabling the other
three audio zones to be used for other purposes.
b. Video Wall / Matrix Switching HDMI AV Only
i. SPOxxSByy xx = output (01 if in video wall mode, 01-04 in matrix mode)
yy = input (01-04)
c. Matrix Switching External Audio only
i. SPOxxSAyy xx = output (01-04), yy = input (01-04)
Note: this may be used while in Video Wall or Matrix mode
d. Video Wall / Matrix mode select
i. SPOOMx x = 0 (matrix), 1 (2x2 VW), 2 (1Hx4V VW), 3 (4Hx1V VW),
4 (3Hx1V), 5 (2 mirrored sets of 2Hx1V VWs)
•A carriage return is required at the end of each string. See the TCP/IP and RS-232 Commands section
for full command set and protocol.
Test for proper operation of the unit and cables in your system before permanently securing the
unit for final installation. Ensure that you leave enough ventilation space to provide sufficient
airflow and cooling

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Application Example
Dual mirrored video walls achieved by using HDMI + UHDoTP AV. Audio de-embed ports connect to amplifiers
for up to 4 possible unique audio zones. Control over IP from Web UI on any phone, tablet, or PC.
KD-VW4x4ProK Connections, and LEDs

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HDMI Inputs (4): Using an HDMI cable, connect your HDMI sources.
•Supports up to UHD/4K @ 60fps [4:2:0], 8 bit color, 10.2Gbps maximum bandwidth
•Compliant with HDMI 2.0, HDCP 2.x and previous
•Supports surround audio formats including Dolby ®, DTS™ (formats up to 5.1 / 6.1)
•Does not support HDR, CEC, ARC, or 3D
•For Display Port sources use active DP to HDMI converter
•Blue Link LED to the right of port illuminates with an active HDMI signal from source.
HDMI Outputs (4): Using an HDMI cable, connect your HDMI displays.
•Supports up to UHD/4K @ 30fps [4:4:4], 8 bit color, 10.2Gbps maximum bandwidth
•Compliant with HDMI 2.0, HDCP 2.x and previous
•Supports surround audio formats including Dolby ®, DTS™ (formats up to 5.1 / 6.1)
•Does not support HDR, CEC, ARC, or 3D
•Output resolution of 4K @ 30fps, 1080p @ 60fps, or 720p @ 60fps may be selected per output using
KDMS Pro software or by sending command via TCP/IP or RS-232
•For Display Port monitors use active HDMI to DP converter
•Blue Link LED to the right of port illuminates with active Hot Plug Detection voltage from the display.
UHDoTP Output (4): Connect a CAT5e/6 cable to the Rx unit’s UHDoTP Input port using CAT5e/6 cabling in
568-B termination.
•Supports up to UHD/4K @ 30fps [4:4:4], 8 bit color, 10.2Gbps maximum bandwidth
•Compliant with HDMI 2.0, HDCP 2.x and previous.
•Distance performance:
oUHD/4K: Up to 115ft (35m) using CAT5e/6, up to 40m (131ft) using CAT6A STP
o1080p: UP to 164 ft (50m) using CAT5e/6, up to 60m (197ft) using CAT6A STP
•Supports Dolby®, DTS™ (5.1 / 6.1 formats max)
•Does not support HDR, CEC, ARC, or 3D
•Output resolution of 4K @ 30fps, 1080p @ 60 fps, or 720p @ 60fps may be selected per output using
KDMS Pro software or by sending command via TCP/IP or RS-232
•Provides 12V Power over CAT to each KD-EXMLVRx
•Blue Link LED to the right of port illuminates with active link with KD-EXMLVRx unit
•Important Notes:
oMinimum CAT5e/6 cable length required: 17ft (5m)
oNot compatible with HDBaseT or third-party Rx. Connecting to incompatible Rx may cause
damage and result in void of warranty.
Analog Audio Outputs (4): 6-pin phoenix balance / un-balanced
•Provides 2ch balanced or un-balanced analog audio output from the selected HDMI input source.
•The Pin assignment for the audio is as follows:
oLeft + is Pin 1; Left - is Pin 3; Left Ground is Pin 2.

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oRight + is Pin 4; Right - is Pin 6; Right Ground is Pin 5.
•For un-balanced audio, use the + and Ground pins of each channel
•Drives audio signals up to 2VRMS with a sampling rate of 192KHz
•Up to 255ms of delay may be added per output using KDMS Pro software or by sending command via
TCP/IP or RS-232. Delay settings apply to both the analog and digital ports for the output.
•There are no volume or tone control features
•There are no format conversion features. For example, to achieve 2ch analog audio output, the selected
HDMI input source audio format must be 2ch.
Digital Audio Outputs (4): Optical
•Provides digital audio output from the selected HDMI input source.
•Supports PCM, SPDIF (IEC 60958), Dolby Digital®, and DTS™ up to 5.1 / 6.1
•There are no volume or tone control features
•There are no format conversion features. For example, to achieve 2ch analog audio output, the selected
HDMI input source audio format must be 2ch.
Note about audio de-embed outputs: When selecting a new source while Video Wall mode, only audio de-
embed port #1 routes to the video wall source so as to provide an audio zone synched with the video wall while
enabling the other three audio zones to be used for other purposes.
IR In/Out (4):
•The default setting is IR Input for the 4x IR In/Out connections. Direction may be changed using KDMS
Pro software, TCP/IP or RS-232.
•IR In/Out ports correspond to their respective Rx unit. IR is not routable
•The KD-VW4x4ProK IR Input supports Serial IR input only. IR sensor connection not supported.
oThe KD-EXMLVRx IR Inputs support the IR Sensor only. Serial / hard-wired IR connection not
supported.
•Maximum supported IR burst frequency is 55kHz.
•Only the provided IR Emitters should be used. Third-party emitters may not be compatible.
•Pinout:
oTip = IR in/out signal, Sleeve = Ground
•RS-232 extension is not supported
Service USB (1):
•Micro USB port

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•Used for configuration and control from PC via KDMS Pro, KDMS, or third-party control terminal
•Used for firmware updates (consult with Key Digital tech support before updating firmware).
oNote: After updating firmware, all unit settings are restored to defaults except IP information.
Please collect all customized settings info before loading firmware.
•Supports USB driver for Windows, Mac
•Will register as “Prolific USB-to-Serial Comm Port in Device Manager
•Can be used as RS-232 control port. Baud rate is 115,200.
Ground Screw: Connect to ground screw on rack or direct to ground wire from ground post to ensure solid
grounding of the main unit.
TCP/IP Unit Control: Used for unit control from a control system and/or PC
•Connect ethernet cable from the KD-VW4x4ProK to a network router or connect a straight through cable
directly from a PC
•Default static IP address is 192.168.1.239, port 23
•Unit configuration, control, and firmware updates are
achieved with Key Digital Management Software™ Pro
(KDMS™ Pro) downloaded HERE.
•See TCP/IP and RS-232 Commands section for full API
RS-232 & IR Unit Control: Used for unit control from a control system and/or PC
•6-Pin Terminal Block for IR and RS-232
•Pin out:
oPin 1 = Serial (Wired) IR In
oPin 2 = IR Ground
oPin 3 = No Connection
oPin 4 = RS-232 Tx Data
oPin 5 = RS-232 Ground
oPing 6 = RS-232Rx Data

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•See TCP/IP RS-232 Commands section for full API
IR Sensor: Mount IR an IR emitter from control system or IR connection block over the optical IR Sensor on the
face of the unit. Refer to IR Remote Control section for correct button press sequence
KD-EXMLVRx Connections, LEDs, and Slide-Switches
HDMI Output: Using an HDMI cable, connect your HDMI displays.
•Supports up to UHD/4K @ 30fps [4:4:4], 8 bit color, 10.2Gbps maximum bandwidth
•Compliant with HDMI 2.0, HDCP 2.x and previous
•Supports surround audio formats including Dolby ®, DTS™ (formats up to 5.1 / 6.1)
•Does not support HDR, CEC, ARC, or 3D
•Output resolution of 4K @ 30fps, 1080p @ 60fps, or 720p @ 60fps may be selected per output using
KDMS Pro software or by sending command via TCP/IP or RS-232
•Source selection and down-convert settings are mirrored on UHDoTP and HDMI output connections of
the same port number.
•For Display Port monitors use active HDMI to DP converter
UHDoTP Input: Connect a CAT5e/6 cable to the Main unit’s UHDoTP Output port using 568-B termination.
•Supports up to UHD/4K @ 30fps [4:4:4], 8 bit color, 10.2Gbps maximum bandwidth
•Compliant with HDMI 2.0, HDCP 2.x and previous
•Distance performance:
oUHD/4K: Up to 115ft (35m) using CAT5e/6, up to 40m (131ft) using CAT6A STP
o1080p: UP to 164 ft (50m) using CAT5e/6, up to 60m (197ft) using CAT6A STP
•Supports Dolby®, DTS™ (5.1 / 6.1 formats max)
•Does not support HDR, CEC, ARC, or 3D
•Output resolution of 4K @ 30fps, 1080p @ 60 fps, or 720p @ 60fps may be selected per output using
KDMS Pro software or by sending command via TCP/IP or RS-232
•Provides 12V Power over CAT to KD-EXMLVRx
•Important Notes:
oMinimum CAT5e/6 cable length required: 17ft (5m)
oNot compatible with HDBaseT or third-party Rx. Connecting to incompatible Rx may cause
damage and result in void of warranty.
IR Out:

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•Connect the included IR emitter to control your display / projector.
•Pinout: Tip = IR in/out signal, Sleeve = Ground
•If the respective IR In/Out port on KD-VW4x4ProK has been set to IR Output, this port is no longer
active
IR In:
•Connect the included IR sensor to collect line-of-sight IR from your device’s remotes
•Pinout: Tip = IR in/out signal, Ring = +5V sensor power, Sleeve = Ground
•By default, this port is not active. You must set the respective IR In/Out port on KD-VW4x4ProK to IR
Output for this port to work.
•The KD-EXMLVRx IR Input port supports the IR Sensor only. Serial / hard-wired IR input not
supported.
•Only the provided IR Sensor should be used. Third-party sensors may not be compatible and/or may
result in damage
•The included IR Sensor Receives signals from a 90° angle at up to 30 ft. away.
•Maximum supported IR burst frequency is 55kHz.
•RS-232 extension is not supported on this port.
LEDs
Power (Blue)
•Solid illumination during power on state, as
provided by healthy connection with power
supply and healthy PoC extension.
•Steady blink if unit has a power short
Link (Blue)
•Solid illumination from healthy UHDoTP link
between Tx and Rx units
Video (Red)
•Illumination with active TMDS (video +
audio) signal
•Off with no TMDS (video + audio) signal
Live (Amber)
•Steady blink from healthy unit CPU state
HDMI Link (Blue)
•Solid illumination from active Hot Plug
Detection voltage with connected
display/output device
Forced HPD Slide Switch: In cases of many layers of connectivity or non-standard devices in-line, hot plug
detection (HPD) may be lost or drop below standard levels, leading to the video display not detecting a
connected source and resulting in no image.
•If set to ON, Hot Plug Detection (HPD) voltage is forced at the HDMI connection of the Rx unit. The
connected display will be fed a constant voltage to inform the device that a partner is always connected
and active.
•If set to OFF, Hot Plug Detection (HPD) voltage is passed thru from connected source to the display
FW (firmware) USB:
•Micro USB port

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•Used for firmware updates (consult with Key Digital tech support before updating firmware)
oNote: After updating firmware, all unit settings are restored to defaults except IP information.
Please collect all customized settings info before loading firmware.
Front Panel Control & LCD
•To enable video wall in desired mode:
1. Video Wall On / Matrix button (button illuminates indicating VW Mode)
2. Video Wall Mode selection button
Notes: Source 1 is the default video wall source. If the Video Wall On / Matrix button is
already illuminated, you may skip step 1 to choose another video wall mode.
•To select video wall source:
1. Video Wall On / Matrix button (button illuminates indicating VW Mode)
2a. Input select button to choose discrete input.
2b. Input Scroll button to advance to next input
Notes: With HDMI AV switching mode button illuminated, only the HDMI ports route to the
selected video wall input. With Ext. Audio button illuminated, only external audio output 1 routes
to the selected video wall input.
Input scroll button only works while in Video Wall mode.
If the Video Wall On / Matrix button is already illuminated, you may skip step 1.
•Matrix Routing HDMI AV only:
1. HDMI AV button (button illuminates to indicate selection)
2. Output button
3. Input button
•Matrix Routing External Audio only:
1. Ext. Audio button (button illuminates to indicate selection)
2. Output button
3. Input button
Factory Default Reset via Front Buttons: Simultaneously press & hold the HDMI AV + Video Wall On / Matrix
buttons for 10 seconds to reset KD-VW4x4ProK to its factory settings:
•All outputs select source 1

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•EDID setting 5 is applied at all HDMI inputs
•IP Address, input & output naming, and all other applied settings are defaulted
LCD Display
A. During bootup, the model number and unit’s IP address are shown
B. During Video Wall selection, the selected source number and VW layout is shown
C. During Matrixing for HDMI and/or External Audio, the selected source number is shown for each output
IR Remote Control
•To enable video wall in desired mode (see below guide)
1. VW Mode button (section E)
2. VW Layout button 1-5 (section D)
Note: Source 1 is the default video wall source
•To select video wall source:
1. VW button (section A)
2. Input button (section C)
Note: When selecting a video wall source, the audio from the
video wall source is routed on external audio output 1
•To set Matrix mode:
1. Matrix button (section E)
Note: Source 1 is the default source for all outputs
•To matrix HDMI AV + External Audio:
1. A/V button (section A)
2. Output button (section B)
3. Input button (section C)
•To matrix HDMI AV only:
1. HDMI button (section A)
2. Output button (section B)
3. Input button (section C)
•External Audio Source Selection:
1. Audio button (section A)
2. Output button (section B)
3. Input button (section C)

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Note: this may be used while in Video Wall or Matrix modes
•To enable / disable Panel Flip (180deg image rotation) on output:
1. R3 button (section E)
2. Output # (section B)
3. VW Layout button 1 (enable) or 0 (disable)
•To enable / disable Debug Mode on output:
1. R3 button (section E)
2. HDMI button (section A)
3. Output # (section B)
4. VW Layout button 1 (enable) or 0 (disable)
•To set EDID handshake for Source from built-in
EDID library:
1. R3 button (section E)
2. Input # (section C)
3. VW Layout # (section D) according to EDID
handshake table
Note: A unique EDID handshake may be
chosen for each HDMI input
Web UI
Use the web UI to select the desired video wall mode and control AV routing as well as applying commonly
needed settings for ease of installation and use. The web UI displays the input, output and devices names
applied for a user-friendly experience.
1. Open web browser and enter KD-VW4x4ProK’s IP address. The Default IP address is 192.168.1.239
2. Enter password. The default password is admin and may be adjusted in the network settings.
3. Use the Screen Mode selection at the left-side of screen to choose desired video wall layout or enter
matrix mode.
4. Use the Video & Audio tab to simultaneously route the desired Source to the HDMI Audio + Video as
well as the External Audio Ports to that selected source.
Note: When selecting a new source for while Video Wall mode, only audio de-embed port #1 routes to
the video wall source to provide an audio zone synched with the video wall while enabling the other
three audio zones to be used for other purposes.
5. Use the HDMI AV tab to route the desired Source to route to the HDMI output only.
6. Use the External Audio tab to independently route the desired audio source on the selected output /
audio zone.
7. Press the Settings Button in the upper-right corner of the web UI to access most common installer
setup options. These settings may also be applied using KDMS Pro or via IP/RS232 command strings:

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a. Enter the Naming Settings tab (7a) to assign a user-friendly Device Name, Input Name, and Output
Name settings.
b. Enter the Video Settings tab (7b) to apply Panel Flip and bezel adjustment settings. See the Panel
Flip and Bezel Adjustment sections for more information.
c. Enter the Network Settings tab (7c) to update the IP settings and web UI access password.