iMac G4 to M1 conversion progress

[Pedro147]

For those who aspire to connect an HDMI source to the G4 screen I am having some TMDS to HDMI breakout boards made in the coming weeks so you can just plug the very unique video cable right into the board and wire it up as you like (may be different pins to connect depending on whether you have a 15"/17" or 20" G4 stand by for more updates in the coming weeks.

Nice work and although my G4 still sits waiting, I am definitely interested in this board while they are available.

 

[PML7554]

For those who aspire to connect an HDMI source to the G4 screen I am having some TMDS to HDMI breakout boards made in the coming weeks so you can just plug the very unique video cable right into the board and wire it up as you like (may be different pins to connect depending on whether you have a 15"/17" or 20" G4 stand by for more updates in the coming weeks.

Can’t wait to see this board! I was dreaming about something like that, but I don’t have the skills or tools…

 

[joeventura]

Can’t wait to see this board! I was dreaming about something like that, but I don’t have the skills or tools…

Its coming soon, probably mid april

 

[joeventura]

If you'd like to help in creating a final board that is an adapter vs a breakout (i.e. prerouted to work without jumpers) let me know if you have a pinout to try

 

[joeventura]

First working prototype

 

[mang0s]

Im realy waiting for this. I collecting parts to do the conversion on a 20" version. The next adapter that would be needed is for original speakers. My plan was cuting the amplifier from the G4 motherboard but it seams a bit harsh.
Was also looking at Juicy Crumb Systems adapter board that has everything, but its realy expensive and is aimed at converting the G4 to an external display.

 

[joeventura]

Im realy waiting for this. I collecting parts to do the conversion on a 20" version. The next adapter that would be needed is for original speakers. My plan was cuting the amplifier from the G4 motherboard but it seams a bit harsh.
Was also looking at Juicy Crumb Systems adapter board that has everything, but its realy expensive and is aimed at converting the G4 to an external display.

Well its ready for prime time

HDMI to TMDS Breakout board by Stillwell Labs on Tindie

Breakout board for HDMI to TMDS

www.tindie.com

 

[joeventura]

Nice work and although my G4 still sits waiting, I am definitely interested in this board while they are available.

HDMI to TMDS Breakout board by Stillwell Labs on Tindie

Breakout board for HDMI to TMDS

www.tindie.com

 

[PML7554]

Im realy waiting for this. I collecting parts to do the conversion on a 20" version. The next adapter that would be needed is for original speakers. My plan was cuting the amplifier from the G4 motherboard but it seams a bit harsh.
Was also looking at Juicy Crumb Systems adapter board that has everything, but its realy expensive and is aimed at converting the G4 to an external display.

To use the original speakers, you can use an amplifier board based on a TA2024, that is the original chip embedded on the iMac main board.
I soldered cables on the iMac cut main board to use the original connector, and powered it with a dedicated power brick.

 

[joeventura]

To use the original speakers, you can use an amplifier board based on a TA2024, that is the original chip embedded on the iMac main board.
I soldered cables on the iMac cut main board to use the original connector, and powered it with a dedicated power brick.

View attachment 2377905

Nicely done!

 

[Pedro147]

HDMI to TMDS Breakout board by Stillwell Labs on Tindie

Breakout board for HDMI to TMDS

www.tindie.com

Thanks a lot for making this board, but unfortunately they do not ship to Australia.

 

[mang0s]

Well its ready for prime time

HDMI to TMDS Breakout board by Stillwell Labs on Tindie

Breakout board for HDMI to TMDS

www.tindie.com

Fine just add shipping to Sweden then ill order one. EDIT, Saw the update on shipping, little pricy shipping rate.

 

[mang0s]

To use the original speakers, you can use an amplifier board based on a TA2024, that is the original chip embedded on the iMac main board.
I soldered cables on the iMac cut main board to use the original connector, and powered it with a dedicated power brick.

View attachment 2377905

This is the board we should remake with right alignment on connectors and TMDS-HDMI converter and TA2024 amplifier. What is the model on the board connector of TMDS?