The early versions of the CDX2 used the Philips VAM1250. These were short-lived and new ones are long gone, so because of this some years back Naim re-engineered the CDX2 to use the VAM1202. At the same time they also offered a re-engineered VAM1202 based update solution for anyone with a VAM1250 machine who needed a new mech fitted.
From what I gather from @NeilS, Naim can no longer offer the VAM1202 update for VAM1250 equipped CDX2s, however, if yours is a later VAM1202 unit, or an earlier one that has already had the VAM1202 update fitted then you should be OK for the time being, although @NeilS will no doubt know the most up to date info here.
Richard is correct in that we can no longer offer the update for 1250 machines to 1202.
To the best of my knowledge, we still have supply issues with the 1202 mechs at the moment
We can still service all CD players as far as capacitors are concerned, however, shipping working examples of these older players can be risky given the current situation.
According to the data I have, the 1202 was introduced to the CDX-2 in 2006. I’m unable to verify that data is correct though - somebody may be able to confirm.
If the mech fails in a CDX2 with a VAM1250 then you would need to replace with a VAM1250. Apart from some rather dubious mechs available on certain auction sites, the VAM1250 is long gone and extremely hard to find. You could, of course, scavenge an old working mech from another suitable old player (mech lists can be found online), but that’s outside of what Naim can offer, and being one of the higher-end Philips Mechs means that there’s no nice plentiful and cheap player to source from. There are though a number of “kitchen table” techs that might be able to help here, but again, that’s a discussion that’s rather outside the AUP of this forum.
The CDX2 was a great player but it’s days are, sadly, over. I moved from a CDX2 to an HDX and, while the presentation was subtly different, I never looked back. The HDX uses generally available 5.25" optical drives and 3.5" HDDs. They can be replaced by NAIM, albeit a little on the expensive side. It can also operate as a stand alone CD player as desired.