Hi,
What options (other than the original CDTV keyboard) do I have to connect a keyboard to the CDTV?
I am looking at PS/2 PC keyboards that have the same pin signals, but I think its juts not a case of just wiring up a PS/2 plug to a CDTV mini DIN plug.
Can I use USB via some adapter?
Any help much appreciated
Thanks
CDTV - Keyboard options?
Moderators: terriblefire, Terriblefire Moderator
-
alexh
- Site sponsor

- Posts: 1340
- Joined: 17 Oct 2017 16:51
- Location: Oxfordshire
Re: CDTV - Keyboard options?
Any Amiga big box keyboards (A1000, A1500, A2000, A3000, A4000) they all need a passive adapter to change the pinout as the pinout on the CDTV is different to all others.
Also any Amiga keyboard adapter + passive CDTV rewire adapter.
Personally I would buy an A500 USB adapter and fit an internal USB Bluetooth receiver. You could then use a wireless black keyboard.
https://sordan.ie/product/1299/amikey50 ... e-adapter/
There have been some discussions about a "holy grail" CDTV bluetooth adapter which includes keyboard, mouse, and joypad but so far no luck. You need two.
Also any Amiga keyboard adapter + passive CDTV rewire adapter.
Personally I would buy an A500 USB adapter and fit an internal USB Bluetooth receiver. You could then use a wireless black keyboard.
https://sordan.ie/product/1299/amikey50 ... e-adapter/
There have been some discussions about a "holy grail" CDTV bluetooth adapter which includes keyboard, mouse, and joypad but so far no luck. You need two.
Senior Principal ASIC Engineer - SystemVerilog, VHDL
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
-
Steve_w
- Posts: 53
- Joined: 12 Aug 2024 19:27
Re: CDTV - Keyboard options?
Ah thanks, this goes over into the CIA socket, when you said "I need two", how will two fit over the same CIA?
I think Amiga big box keyboards will be too expensive to buy, personally a "holy grail" adapter would be awesome.
I've just got a RGB2HDMI v2 which includes 2 db9 ports, one could be used for a mouse, but it would be nice to have USB for the keyboard and mouse and maybe have this inside the expansion port along with a SD card IDE adapter to use WHDLoad....... wishful thinking.
You mentioned Amiga keyboard adapter, do you mean something like this, I would remove the a500 keyboard socket and replace with a CDTV wire with mini din plug?
https://www.ebay.co.uk/itm/143436940318
Thanks
I think Amiga big box keyboards will be too expensive to buy, personally a "holy grail" adapter would be awesome.
I've just got a RGB2HDMI v2 which includes 2 db9 ports, one could be used for a mouse, but it would be nice to have USB for the keyboard and mouse and maybe have this inside the expansion port along with a SD card IDE adapter to use WHDLoad....... wishful thinking.
You mentioned Amiga keyboard adapter, do you mean something like this, I would remove the a500 keyboard socket and replace with a CDTV wire with mini din plug?
https://www.ebay.co.uk/itm/143436940318
Thanks
-
alexh
- Site sponsor

- Posts: 1340
- Joined: 17 Oct 2017 16:51
- Location: Oxfordshire
Re: CDTV - Keyboard options?
No I mean Big Box Amiga USB/PS2 keyboard adapters like : Lyra, SUM, TruMouse etc.Steve_w wrote: 28 Aug 2025 14:02 You mentioned Amiga keyboard adapter, do you mean something like this
https://www.epsilonsworld.com/2016/04/s ... 4000t.html
Senior Principal ASIC Engineer - SystemVerilog, VHDL
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
-
alexh
- Site sponsor

- Posts: 1340
- Joined: 17 Oct 2017 16:51
- Location: Oxfordshire
Re: CDTV - Keyboard options?
I don't know. I have been trying to convince the developers to "merge" the two projects but so far no luck. They are open source so in theory it should be possible.Steve_w wrote: 28 Aug 2025 14:02 Ah thanks, this goes over into the CIA socket, when you said "I need two", how will two fit over the same CIA?
Here is the other project.
https://retrocu.xyz/index.php?route=pro ... blue+retro
I wanted one which supported, Keyboard, Mouse, 2x CD32 like Joypads.
Senior Principal ASIC Engineer - SystemVerilog, VHDL
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
-
Steve_w
- Posts: 53
- Joined: 12 Aug 2024 19:27
Re: CDTV - Keyboard options?
Ash I see, the SUM adapter is available, just can't justify the price of £70 odd posted.
And like you said, the blue retro is just for joysticks.
Be good to have a usb adapter that works for mouse and keyboard. Then either plug in wired usb keyboard and mouse or use a wireless keyboard or mouse.
And like you said, the blue retro is just for joysticks.
Be good to have a usb adapter that works for mouse and keyboard. Then either plug in wired usb keyboard and mouse or use a wireless keyboard or mouse.
-
alexh
- Site sponsor

- Posts: 1340
- Joined: 17 Oct 2017 16:51
- Location: Oxfordshire
Re: CDTV - Keyboard options?
You can probably make your own for ~£20 from the countless open source projects.Steve_w wrote: 28 Aug 2025 19:06 Ash I see, the SUM adapter is available, just can't justify the price of £70 odd posted.
https://github.com/SvOlli/USB2Amiga
https://github.com/borb/amigahid-pico
https://github.com/Jartza/PS2toAmiga
https://github.com/gianlucarenzi/stalker
Senior Principal ASIC Engineer - SystemVerilog, VHDL
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
Thalion Webshrine - http://thalion.atari.org
ST,STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
-
Steve_w
- Posts: 53
- Joined: 12 Aug 2024 19:27
Re: CDTV - Keyboard options?
AH, thanks, the USB2Amiga and PCS2Amiga look interesting. Gives a base to make create a dual USB adapter. :D
Who is online
Users browsing this forum: ClaudeBot and 5 guests