C.E.C. TL-1 CD Belt Drive Transport which strangely failed to play test racks with larger faults.

It happens quite often that some tracks with larger interruptions in data layer or black dots painted on the surface of the test CD, provide some challenge for players prior to service.
Normally, you observe poor tracking or skipping or just some audio hiccups.
This Transport was quite strange. It would play tracks with faults up to 0.6mm perfectly but would not even entertain to provide a hint of playback of tracks past that. Just sat there and was spinning a CD.
It would play CD-Rs with good reflectivity only.
There was plenty of good and sharp R.F. signal, with about 150µW of laser power.
As always in these cases, I checked capacitors which were still within specifications and proceeded to align the servo.
The aftermarket clock (mod) could not be adjusted to correct frequency and only "kicked in" after about 10 minutes.
Normal servo adjustment fixed the reluctance to read tracks with 0.9mm faults and now also it reads pretty much any CD-R.
The PSU filtering mods appear quite reasonable and filtering of AES-EBU signal cannot hurt either.
Not sure though about the quality of the clock and if this was a worthwhile mod. Does not appear to work better than the factory one.

[@Andre-bs5nl]

Did you had a listen to it and formed an opinion how it sounds?

[@hear-net-au]

No. I did not consider it high enough model to hook it up. Had two of them before and never tested any of them. I consider them technically deficient. Boombox electronics housed in an elaborate box.
In comparison to engineering found in Wadia, Levinson or even Sony, it is trivial.
I did hook up C.E.C. TL-0 though, and it was a fine sounding unit. I used a Wadia 16 DAC for this. But then every transport sound fine through its inputs ;-)

[@Andre-bs5nl]

@@hear-net-au Thank you for the answer!
In the end I saddled down with a Rotel RDD980 with a cdm9, solid and cheap machine.