Sega cd "new" laser issue

[omp]

Hey folks, recently I bought replacement lasers for all my sega/mega cd consoles. So that is jvc opt 5 for the model 1 and jvc opt 6 & samsung soh90-t4n for each of the model 2's. These were bought as spares, while they were available, for working consoles.

The model 2 lasers work fine. The model 1 however has been a no go. The first, I got had physical damage and didn't work. I had to post it back to America (from Australia) & they sent another one. This one doesn't work either! Surely I wasn't sent 2 faulty lasers, my luck can't be that bad? I did however notice that the seller changed the ad on ebay from "new" to "factory refurbished"or something along those lines.

The model 1 does work with it's existing laser, I was just after a spare. I looked for the "solder blob" & there doesn't appear to be one. Usually they are easy to spot and are very obvious.

Anyone got further idea's? Not keen to send this one back as I will be out of pocket further (since I paid for return postage the first time). My only other option I guess is to get my arse into gear and re-cap the model 1 and wrap it up and put it into retirement and use one of the model 2's instead. I want to pass all my retro consoles onto my son when he is old enough.

[villahed94]

Try to get a Sony KSS240A. Those are the original lasers for Model 1 SCDs/MCDs. The JVC might be a replacement part but I'm not so sure it's 100% compatible with the KSS240.

[omp]

This one is the jvc drive, ie it doesn't use that stupid black spindle thing to raise the laser sled, it uses the rail and pin arrangement.

I have one of those sega cd model 1s that use the sony laser as well but it is only a parts machine at the moment as it had been previously pulled apart and damaged in the process. It was purchased this way, to challenge myself one day I may try to fix it.

[akaviolence]

All the lasers i've ever replaced needed 'adjusted in,' but I can't say as I remember doing any segacds yet...
There is an awesome thread on pcenginefx forums about it. The second post talks about how to adjust the pots.