UVGEN Amiga 2000 Genlock (Video overlay)

An internal genlock for the Amiga which plugs into the video slot (OCS/ECS style). This genlock appears to have been developed for use with the A2000 clone called the Sneak Prevue, a system for broadcasting programming information. The genlock was used to supply video from the Laser Disc Player. (https://bigbookofamigahardware.com/bboah/Product.aspx?id=440)

I bought this device on eBay and decided to make a replica of it. I did not found any other open source genlocks for Amiga so it would be nice to have something in this niche. 

First of all, WARNINGS:

1) The project is completely untested. I plugged in the original card, but it is not a correct test. This project may not work at all, because there are many copper traces. 

2) UVGEN Genlock works on A2000 NTSC machines only, you need to modify circuit for PAL(and I am not sure it is possible to do that)

3) FPGA onboard has its own ROM and it was dumped. EEPROM dump is provided only for home and non-commercial usage. If you want to sell this - write your own ROM for XC2018. 

4) Of course, I am not responsible for any loss, damage, or other things caused by this project to your expensive Amiga desktop. 

5) If you successfully managed to start up this card - please tell me, if I need to do any changes in the project files. Your help will be much appreciated.

6) Inductor values should be inspired from the datasheet

UVGEN genlock consists of video overlay IC MC1378P. See its datasheet: https://pdf1.alldatasheet.com/datasheet-pdf/download/168761/MOTOROLA/MC1378P.html

This IC is controlled by FPGA with OEM ROM which makes all the necessary signals. There are also 4 switches(and thus 16 modes) of Genlock. I do not know how it works. From what I've seen on a screen - it chooses signals from Amiga for gen-locking and overlaying. 

HOW IT WAS USED:

- To add Teletext to videos + some effects

- To add captions and credits list

- To make music videos

Original UVGEN Genlock was used for Sneak Prevue TV broadcasting system.

IDEAS ON HOW TO USE IT:

1) Make retro wave videos using composite Amiga video and other video source

2) Make original and 90s-like video clips for music

3) Output composite video from new Amiga 2000s, Amiga 2000 EATX (from jasonbeer, my respect)

I'll share the original files within several months but first I want some orders to appear from PCBWay to generate some income from my work. Next, I'll share original schematics and board files too. Please support my work. 

I also plan to make a small SMD-based board with the same functions.

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Firmware for FPGA: https://github.com/Sgw32/UVGEN_Genlock_Replica/blob/main/Firmware/UVGen_Genlock_AM27C64%40DIP28.BIN