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c0pperdragon / Amiga-Digital-Video

Add a digital video port to vintage Amiga machines
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non-destructive way of fitting an HDMI output to the Amiga 500. #47

Open NielsPlougman opened 3 years ago

NielsPlougman commented 3 years ago

This is a non-destructive way of fitting an HDMI output to the Amiga 500.

When adding the RGBtoHDMI adapter to the original Amiga 500, the problem arises how to get the HDMI cable out of the Amiga.

I've come up with the following solution: image4

This little housing, for a Female HDMI connector, clips right on the Amiga case. I tried to design it in the A520 TV modulator style, so it should not look too much out of place in the 80' computer design.

HDMI_Housing

The cables go through the small vents on top of the Amiga case. I've made a complete guide on prusaprinters.org, where you can download the STL files and see how to assemble it.

https://www.prusaprinters.org/prints/63688-rgbtohdmi-adapter-housing-for-amiga-500

Hope someone finds it usefull.

aiobofh commented 3 years ago

I did like this :) also non-destructive. Well... Restorable...

20210412_223146

20210412_215354

mthiesen commented 3 years ago

@NielsPlougman This looks very nice, good job! I thought about printing a custom expansion port cover with cut-outs for HDMI and the push button, but this is so much better. Definitely goes onto my ever growning list of things-to-print.

@aiobofh I am curious: what is the story behind those connectors with the LEDs and voltage labels?

LinuxJedi commented 3 years ago

@aiobofh I am curious: what is the story behind those connectors with the LEDs and voltage labels?

They will be ATK / DiagROM loopback testers.

krug3rf commented 3 years ago

My personnal design for single HDMI with or without µSD slot or dual HDMI (PiStorm and RGBtoHDMI), available here

IMG_20210221_220653

Amiga 500 Expansion Cover RGB2HDMI 20x16 Push Button v2 7 0 v7

A500 Expansion Cover RGB2HDMI 20x16 Special Edition v5

rkeniger commented 1 year ago

Are you all just ignoring the fact that with this mod in place you can't re-install the RF shielding on the Amiga? The installed Pi Zero totally blocks one of the screw holes.

LinuxJedi commented 1 year ago

Are you all just ignoring the fact that with this mod in place you can't re-install the RF shielding on the Amiga? The installed Pi Zero totally blocks one of the screw holes.

Is there a reason you would want to re-install it? I don't know many people who keep it on.

rkeniger commented 1 year ago

I guess just for completeness? Are there no issues with it off? Since it’s a hefty shield I’m assuming it’s there to prevent the Amiga interfering with radio, but if it’s unlikely to affect things then great - I know pretty much zero about RF when it comes to circuitry.

LinuxJedi commented 1 year ago

I guess just for completeness? Are there no issues with it off? Since it’s a hefty shield I’m assuming it’s there to prevent the Amiga interfering with radio, but if it’s unlikely to affect things then great - I know pretty much zero about RF when it comes to circuitry.

I believe it was mostly there to meet strict US regulations at the time. I've not had noticeable interference from even the Amiga 500 test motherboard I run outside the case in my workshop.