Amstrad CPC 6128 – HxC mod

… or Batman forever … forever

.

Short story

Recently, I’ve decided that I need to buy a larger Hard Drive lol …



/Short story

CPC 6128

I always wanted to put my hands on Amstrad CPC 6128.
It was kinda exotic in my country back in a day.
Today, we have bidding portals and INTERNETZ so getting one is obviously not a problem.
I’ve found a cool looking unit on eBay … and before I decided that I’ll buy it … left mouse button clicked somehow. I have NO IDEA how that could happen! Who could have clicked it ?!!


A couple of days later … I was like … YAY! I have it! 😀 Below some pics of it








… and pics of an inside

The Plan

The plan was to clean this unit as usual and start playing with it but since I didn’t have any 3-inch floppy disks to load software from I had to change that plan a bit.
I had a spare HxC on the shelf – Cheers Lotharek 😀
HxC is a great device that emulates floppy drives – MORE INFO

The Plan evolved quickly:

  • Clean a unit, whiten all keycaps, etc.
  • Swap original floppy drive with HxC
  • Burn DualROM and install a switch for it
  • Design and 3D print a front panel
  • Run Batman Forever DEMO 😀

Cleaning

This Amstrad’s case was in a very good condition so it only required good washing.
However, keycaps needed a solid de-yellowing treatment.






Unstocking a stock HxC

Stock HxC straight from Lotharek 😉


I wanted to put tact switches, LEDs, and LCD on a front panel so I had to modify it slightly which simply involved desoldering all of ’em.






I did a slight trimming of a case just enough to create a slot for an SD card.








A 34 pin cable adapter was required to connect HxC to original cable without cutting it. I’ve made it according to a drawing that Bryce put on a CPC wiki – Thx Bryce 🙂



I didn’t have a 34 pin header so I’ve trimmed a larger one.







Next, I had to mod an original 34 pin floppy cable.











Aaaaaaand …. after a bit of work I had an adapter NOT ready.



… as usual, I screwed up and soldered wires in a wrong order :/
I had to spend extra time and correct it.



Power connector needed a small mod too. Simply removing a 12V line was enough to get a HxC up and running.


DualROM

That was quite straight forward. After burning two OSs on a Winbond W27C512 flash chip, I only needed to desolder the original chip and put a modified socket in its place.






Front panel

I’ve done a quick design of a panel in CAD software and 3D printed it a while later.


I was quite happy with a result after trying it on with LCD and LEDs.


I’ve then applied black matt vinyl to cover LCD edges.


First dry-run and testing revealed that I will have to change tact(momentary) switch to regular switch If I am about to properly switch between OS ROMs.




Final assembly

Hot-glue FTW!






Works DONE 😀








All that left was to play mandatory Batman Forever DEMO!

Cheers and see you next time 😉

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