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6

7

For all audio de-embed outputs:

 

There are no volume or tone control features

 

There are no DSP features

Audio Input  

Signal Format

Audio L/R  

Output

Digital Audio 

Output

2ch PCM

Pass-Through

Pass-Though

Multi-Channel PCM

Front L&R Pass-through

MUTE

Dolby DTS

MUTE

Pass-Though

HD Audio

MUTE

MUTE

RS-232:

 

3.5mm tip, ring ,sleeve (stereo) connection

 

Commands and feedback found in the RS-232 Commands section

 

Communication typically done with third-party terminal software like TeraTerm or PuTTY

 

Pin out:

 

»

Tip = RS-232 Tx Data

 

»

Ring = RS-232 Rx Data

 

»

Sleeve = RS-232 Ground

EDID Handshaking Rotary:

EDID authentication is provided from the KD-FIX418A to the connected input/source 

 

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 
behaves differently

 

Adjustments may speed up sync time during source selection.

Supported standard 4K Video Formats:

Resolution

Bandwidth

1

4K@24/25/30 [4:4:4] 8bit

< 10.2Gbps

2

4K@24/25/30 [4:2:2] 8/10/12bit

< 10.2Gbps

3

4K@50/60 [4:2:0] 8bit

< 10.2Gbps

4

4K@24/25/30 [4:4:4] 10/12bit

< 18Gbps

5

4K@50/60 [4:2:2] 8/10/12bit

< 18Gbps

6

4K@50/60 [4:2:0] 10/12bit

< 18Gbps

7

4K@50/60 [4:4:4] 8bit

< 18Gbps

AUDIO OUTPUTS:

Analog L/R Audio Output:

 

3.5mm stereo jack with de-embedded 
audio from the selected HDMI source

 

Drives audio signals up to 1 VRMS with a sampling rate of 192KHz

 

Automatically mutes if audio formatting is not PCM 2ch

PCM Digital Audio Output:

 

RCA audio output with de-embedded audio from the selected HDMI source

 

SPDIF IEC 60958 format

 

Compatible with sampling rates up to 192KHz

 

Supports multi-channel Dolby

®

 and DTS

 surround formats up to 5.1 

 

Automatically mutes if audio formatting is not PCM, Dolby

®

, or DTS

Summary of Contents for KD-FIX418A

Page 1: ...y cutting edge technology solutions for virtually all applications where high end video and control are important Key Digital is at the forefront of the video industry for Home Theater Retailers Custo...

Page 2: ...connected ARC supported HDMI source CEC Pass thru From connected display to selected HDMI source Control RS 232 control and connectivity status Included Accessories Power Supply KD PS5V1ASC 5V 1A 5W...

Page 3: ...e Short HDMI 18Gbps 4K Source Long HDMI KD FIX418A 18Gbps Short HDMI 18Gbps 4K AppleTV 18Gbps to 10 2Gbps Down convert Mode KD FIX418A HDMI HDMI HDMI 18Gbps 4K Source Audio DSP Amplifier Receiver Mult...

Page 4: ...acing of 2 912 2 582 or 2 252 Do NOT exceed 12 units as doing so will result in unit damage by overheating Connections LEDs Slide Switches and Rotaries VIDEO INPUTS AND OUTPUTS HDMI Input The HDMI inp...

Page 5: ...rming the source device what it should output Most sources will comply with a new EDID file without a power cycle but devices do behaves differently Adjustments may speed up sync time during source se...

Page 6: ...l be output of KD FIX418A at 4 2 0 lessening the overall TMDS bandwidth from 18G to 10 2G max When ON the above described color space adjustment will only apply if the incoming signal is greater than...

Page 7: ...SPC DF Reset to Factory Defaults RS 232 Commands KD FIX418A allows control over serial interface for bi directional communication Use a TRS cable for RS 232 communication Pin Out Tip RS 232 Tx Data Ri...

Page 8: ...or moisture Power Supply Use You MUST use the Power Supply PROVIDED with your unit or you VOID the Key Digital Warranty and risk damage to your unit and associated equipment Specifications Technical...

Page 9: ...t keydigital com Technical Support For technical questions about using Key Digital products please contact us at Phone 914 667 9700 E mail tech keydigital com Repairs and Warranty Service Should your...

Page 10: ...16 17...

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