We’re building a Multiface 128 clone today. Originally by Romantic Robot, this device allows you to freeze, inspect and dump the content of memory to a storage device, which in no way was a boon for pirates at all, nope!
00:01, Introduction to the Multiface 128 clone for 48k and 128k ZX Spectrums.
00:13, Mark Fixes Stuff Intro.
00:18, PCBWay Sponsor Thanks.
00:31, Multiface Clone project parts required.
01:57, A ready-made ZX Spectrum edge connector from https://www.thefuturewas8bit.com/shop/sinclair/sinclair-spares/zxedge.html
02:13, Cleaning the Multiface 128 recreation PCB.
03:17, Soldering the decoupling capacitors.
06:01, Installing the resistors.
06:30, Installing the DIP14 sockets for the 74 series logic chips.
09:49, Installing the DIP28 sockets for the 27C64 EPROM and the SRAM chip.
11:40, Installing the momentary tactile switch for the NMI function.
12:10, Installing the ZX Spectrum Edge connector!
14:07, Why you still need to clean “No-Clean” flux!
14:39, Programming the EPROM for the Spectrum Multiface 128.
17:15, Installing the supporting 74 series logic chips in the Multiface.
18:15, Inserting the EPROM prgrammed with the Multiface 128 v87.12 ROM file.
18:23, Installing the SRAM chip.
18:36, The Romantic Robot 128 recreation for ZX Spectrum is complete!
18:45, Testing the build works on a 48k Spectrum
19:25, Test on a 129k +2 (Grey/Gray) Spectrum
19:30, Incompatabilities with later models.
20:05, Further viewing that you might enjoy!
The project was reversed by Stephen Smith and has been used here with his express consent. You can order your own boards from https://www.pcbway.com/project/shareproject/Romantic_Robot_Multiface_128_Recreation_for_ZX_Spectrum.html, where you will also find a parts list.
The file you need for programming the EPROM is here: Multiface 128 V87.12 ROM file
Visit the ProjectSpeccy Tindie store here, https://www.tindie.com/stores/projectspeccy/
