Right.
Definitely replacing servo op amps could cause real instability, but people should know better. That is so obvious! The OP seemed to be on an audio upgrade only.
I do not believe there is any problem with the laser diode. Servo issues may make reading the TOC problematic, and skipping tracks will really show off servo issues.
anatech
I am hot trying to hijack this thread but I am trying to get in contact with argonrepublic about his Luxman L100. If you can do that for me that would be great. I need some small parts. I know it's a REAL long shot because he posted about it 4 years ago. Any help would be great. ThanksHere is a link to his post's in another thread
https://www.diyaudio.com/community/threads/luxman-l-100.41783/page-2