Hi Duncs-598-Modders

As soon as I arrived home it was out with the Torx-driver. The cables and SDI card were installed in about 10 minutes, with the most difficult part of the job being the careful removal of the blanking plug from the back panel of the 598!

As soon as I fired-up the 598 and Crystalio it was immediatley evident from the 598 logo screen that the image was sharper. Stangely that was when the Crystalio was detecting a seemingly default NTSC signal on start-up. When a PAL disc was subsequently inserted, played and removed the 598 logo sreen was somewhat blurred. Anyone any ideas as to this quirk?

Regardless of the logo screen issue, there's a noticeable improvement in picture quality - most definitely sharper and with the colours seemingly more vibrant.

When the 598 is switched off, the logo screen remains on-screen as long as the Crystalio is powered-up. Presumably the SDI card (and other existing 598 components?) remain in a powered-up state enabling the logo screen stored in ROM being output to the Crystalio.

Aside from the noted quirks, I'm delighted with the SDI mod to the 598 - it has produced a marked improvement in picture quality.

Thanks again to Duncs for the leads!

System 1:
568.2MM, G98DH, Denon DVD-A1, UHD722, D5KC, D5500.2K, DSP33, Sony UDP-800, AppleTV 4K, Sony KE85XH9096BU

System 2:
562V, M20, AppleTV

System 3
501, 555, AppleTV, Acoustic Energy AE1