SCART2DVI

 

The SCART2DVI is an open-source (CERN OHLv2) device, designed for 15KHz (240p & 480i) retro gaming signals.  The gerbers, as well as the Eagle design files can be downloaded here.  These boards are tested and confirmed working:  http://retrorgb.com/assets/dvi/SCART2DVIv1.1.zip

 

Purchase:

Insurrection Industries has made the SCART2DVI available for purchase.  Please read this page and in the video capture section before purchasing…this is NOT a scaler!:  https://insurrectionindustries.com/product/scart2dvi/

 

Introduction

This device is powered by USB, passes through audio and has toggle switches for both the LPF and sync stripper.  My advice is to start with both switches off and toggle as needed.  I’d expect in most cases you’d need the sync stripper on.  If you’re not sure if your console already has a LPF (such as something modded with a THS7314) then try toggling to see if it removes noise.  More detailed information on how to use this adapter can be found here:  http://www.retrorgb.com/datapathcapture.html

 

3D Printed Case

A 3D printed case will soon be available for the SCART2DVI.  This will be available as a free, open-source 3D print file and also available to purchase.

 

DVI-I Cable / Connector

This device connects to your capture card via a DVI-I cable or coupler.  Make sure whatever your connection is using has the analog pins, otherwise it won’t work!

DVI-I Cables:
https://amzn.to/2Ndxglu
https://amzn.to/2T2QuQb

DVI-I Coupler:
https://ebay.to/2DUk9BD
https://www.mycablemart.com/store/cart.php?m=product_detail&p=5987

 

Other Cables & Accessories

If you’re keeping the SCART2DVI close to your capture card for the least amount of signal loss, you’ll want some short cables.  I also like to use a cable tie, to help with strain relief when a coupler is used:

1Ft Micro USB Cable:  https://amzn.to/2WsrG35
3.5mm 1ft Audio Cable: https://amzn.to/2MEpAZr
Cable tie:  https://amzn.to/2GShtrc

 

Full Bill Of Materials

Here’s some component links, to try and make your ordering easier!  As an FYI, all small components are SMD 0603.

Here’s an all-in-one BOM (without the SCART connector) that was provided based on the below links (personally untested) that might make ordering easier:  https://www.digikey.com/short/pqr5z4

7x Capacitor 0.1uF (100nF):  https://www.digikey.com/product-detail/en/CL10F104ZO8NNNC/1276-1258-1-ND/3889344/

2x Capacitor 100uF:  https://www.digikey.com/product-detail/en/panasonic-electronic-components/EEE-0JA101WR/PCE3853CT-ND/766229

2x Inductor:  https://www.digikey.com/product-detail/en/MPZ1608S331ATA00/445-5221-1-ND/2117955/

1x Audio Jack:  https://www.digikey.com/product-detail/en/cui-inc/SJ1-3524NG/CP1-3524NG-ND/738691

1x MicroUSB Port:  https://www.digikey.com/product-detail/en/629105150521/732-5960-1-ND/5047555

8x Resistor 75ohm:  https://www.digikey.com/product-detail/en/rohm-semiconductor/ESR03EZPF75R0/RHM75.0ADCT-ND/1983773

1x Resistor 680k:  https://www.digikey.com/product-detail/en/te-connectivity-passive-product/CRGP0603F680K/A130450CT-ND/8578282

2x MicroSwitch:  https://www.digikey.com/product-detail/en/c-k/JS202011AQN/401-2000-ND/1640096

1x THS7374:  https://www.digikey.com/product-detail/en/texas-instruments/THS7374IPWR/296-41661-1-ND/5224405

1x LM1881:  https://www.digikey.com/product-detail/en/texas-instruments/LM1881MX-NOPB/296-47437-1-ND/2139048

1x SCART Connector, female:   
https://www.ebay.com/itm/321474089583
https://console5.com/store/female-scart-jp21-through-hole-pcb-mount-21-pin-connector-right-angle.html

1x DVI Input Port:  https://www.digikey.com/product-detail/en/molex-llc/0743201004/WM5600-ND/356066

Cheaper links, but either long or expensive shipping (better for 5 or more though!):
https://lcsc.com/product-detail/Audio-Video-Connectors_CONNFLY-Elec-DS1091-VN0X_C77847.html
https://www.aliexpress.com/item/Free-shipping-10pcs-DVI-29Pin-to-PCB-90-Degree-Female-Connector-Plug-24-5-Pin-Female/32224360849.html

2x Screws (need to double check):  https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/5207953-3/5207953-3-ND/1121976

4x Resistor 100ohm:  https://www.digikey.com/product-detail/en/te-connectivity-passive-product/CRGP0603F100R/A130404CT-ND/8578236

Note:  If audio is too quiet for you, replace the components in R7 & R8 with 0 Ohm resistors:  https://www.digikey.com/product-detail/en/CRCW06030000Z0EAHP/541-0.0SBCT-ND/2222749/

I’d like to look into improving this device any way possible.  The first thing on my list would be to have a switchable low-pass filter that can handle multiple frequencies for use across all analog resolutions (240p – 1080i).  I’d also like to see a VGA version, but held off on making one until the filtering options were solved, as most VGA uses would be 480p and up.

People with the necessary knowledge are encouraged to edit and modify this as they find ways to improve or change the design.

Voultar has also prototyped a similar product with dual DVI + SCART output designed for streamers.  No pricing and availability though.

 

A detailed guide on how to use this device with your capture setup can be found here:  https://www.retrorgb.com/videocapture.html