SACD Player Won't Play Hybrid SACDs

Thanks for the info. Some problems have developed in attempting to get my unit repaired. There are now apparently 3 part numbers associated with KHM-230AAA. The original part # was 8-820-132-02. That was replaced by 8-820-132-03. The repair place ordered this part. It arrived, but was defective and was returned and another one ordered. Three weeks have passed and the part has not come in. Apparently, this part has been replaced by 8-820-132-09 and even this may no longer be available.
Is anyone familiar with 8-820-132-09 and is it now the "new" part for the SCD-C555es?

One last try. The first replacement part (from Sony) did not work. I purchased 2 replacements from someone in Taiwan that, based on various sites and blogs, is the go-to guy for laser assembly pickup replacements. He gets very favorable ratings and was certain the laser would work for my SACD player and all the ones that used that particular laser. The first one did not work. I'm getting ready to drop off the remaining laser to the repair shop.

There is a "solder blob" that needs to be removed from the assembly for installation. The repair person was well aware of this and properly removed it on each laser. Is there something we are not doing? It seems a bit crazy that none of the replacement lasers work.

Try checking the flexy-ribbon cable running from main to optic assembly board.
Occurred to me once where new optic wouldn't operate, and it turned out (after thorough
testing) one channel amongst six of what appeared to be still perfectly fine cable was bad.
After flexy-cable replaced, everything was good.

*Suspect also other connections that are possibly susceptible/get in the way/affected over
long haul when tray of disc travels in-out, or one that needed plug/unplugging when
technician is replacing the assy.

Just a thought. Wouldn't it be easier to purchase a different player?

unfortunately, "years" are centuries in digital. Unless you paid as much as a porsche for a cd player (I only paid as much as a hundai), it usually doesn't pay to repair them. Doesn't pay means alot of different things. To me, it means the inconvenience isn't worth the aggravation with the reward being listening to the same old cd technology. I buy my player form a dealer and he handles everything, and when its so bad that I cant repair it - or it ain't worth it - time to trade up with my dealer. You get a new car every few years... do the same with your cd player.