This player appears to be the equivalent to the US model, CLD-S303.
Unfortunately, there doesn't appear to be a lot of information on it on our archives nor hifiengine's site. Regardless, you can still research for points by simply looking inside for hints on where the points might be. Here is an example inside of a
CLD-M90.
Look for labels on jumpers........ as well as labels where the connectors attach to different boards (if your player has multiple boards). All of these points can be directly soldered to an AC3-RF board once you build one.