Philips CDI660 Mono IV NVRAM and 60 Hz Modification

The CDI660/00 is one of the last professional CD-i players by Philips. The mainboard, Mono IV, is also used in various consumer players. So far, there are no tutorials for 60 Hz modification. When this topic came up in the community on The world of CD-i, I looked it up in the CDI220/80 service manual (also Mono IV, with plenty of remarks for other player models) and attempted the modification myself. It has been on my to-do list for quite some years now.
First, we need full access to mainboard. Remove the marked screw of the DVC plastic holder.

CDI660 inside
CDI660 inside
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Pippin Atmark Floppy Adapter

A floppy disk drive for to the Pippin Atmark is nothing new. In fact, an expansion dock called Pippin Atmark Floppy Unit was released back in the days. These units are incredibly rare and I was never able to get ahold of one of them. Apart from an Apple floppy disk drive with 20-pin ribbon cable, these units contained no additional hardware but a simple X-PCI adapter board. It didn’t take long until Japanese enthusiasts tried to replicate these adapters. When I recently rediscovered my Pippin Atmark PA-82001-S, I also looked around for additional hardware. I found this article about an adapter board that had been finally replicated two years ago. This board can still be ordered from OSH Park.

Pippin Atmark Floppy Adapter
Pippin Atmark Floppy Adapter
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Capcom CPS2 Digital AV and I/O Interfaces

After finishing the repairs on my CPS2 in April, I had already some more additions in mind:

I had already ordered the digital AV interface kit from VideoGamePerfection.com in the beginning of the year and was only waiting for the I/O interface to get started. Last month, it finally arrived. Also on the picture: a home-made kick harness and a RG174 coaxial cable.

Capcom CPS2 digital AV and I/O interfaces
Capcom CPS2 digital AV and I/O interfaces
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