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6

7

Forced HPD Troubleshooting Tool

 

»

When ON, Hot Plug Detection voltage is fixed on to the connected display

 

»

Standard HPD behavior when set to OFF position

EDID Handshaking Rotary

 

»

EDID authentication is provided from the unit to the connected inputs/sources. 

 

»

The EDID file (AKA “handshake”) is selected using the EDID rotary on the unit and provides a list 
of compatible video and audio formats as well as digital data, informing the source device what it 
should output.

 

»

Most sources will comply with a new EDID file without a power-cycle, but devices do behave 
differently

 

»

Adjustments may speed up sync time during source selection.

Position EDID Handshake Description

EDID Rotary

0

Copy EDID from HDMI Output

Note: Default position 
is “

A

1

1080i, 2CH AUDIO

2

1080i, DOLBY/DTS 5.1

3

1080i, HD AUDIO

4

1080p, 2CH AUDIO

5

1080p, DOLBY/DTS 5.1

6

1080p, HD AUDIO

7

4Kx2K@60, 10.2G, HDR, 2CH AUDIO

8

4Kx2K@60, 10.2G, HDR, DOLBY/DTS 5.1

9

4Kx2K@60, 10.2G, HDR, HD AUDIO

A

4Kx2K@60, 18G, HDR, 2CH AUDIO

B

4Kx2K@60, 18G, HDR, DOLBY/DTS 5.1

C

4Kx2K@60, 18G, HDR, HD AUDIO

IMPORTANT: 

Please 

apply light pressure 
to the EDID rotary 
when making your 
selection.

D

1280x720p@60 DVI (no audio)

E

1920x1080p@60 DVI (no audio)

F

4Kx2K@30, 10.2G, HDR, 2CH AUDIO

IR Sensor

 

»

Used to collect line-of-sight IR from remote control

 

»

Receives signals from a 90° angle at up to 30ft away.

 

»

Mount an IR emitter from Compass Control Pro or to control by another professional control system

IR Remote Control

Model: KDRMSWPROK (uses CR2025 battery). Please note that some remote buttons may have no 
functionality. 

Discreet 
Input Select

Incremental 
Input Select

R1, R2, R3
(Reserved) 

Device Select  

(used for  

addressing 

mode)

Auto 

Sensing 

Enable

Auto Sensing Mode

Press the 

AUTO

 button on the IR remote control to enable Auto Sensing Mode 

Auto Sensing mode is automatically disabled

 when the KD-S2x1X/4x1X is manually controlled by 

the front panel button or IR remote control.  If fixed Auto Sensing is required, please contact Key Digital 
Technical Support for a list of applicable models.

 

ON 

» Unit will automatically select a newly detected active source.  If current source is disconnected 

or becomes inactive, auto sensing will sequentially advance to an active input/source

 

OFF

 » Unit is in normal mode and regular switching functionality will occur 

KD-S2x1_4x1X Manual.indd   6-7

3/20/19   11:00 AM

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