I have a Canon xm1 (Europe) / GL1 (USA) that has some mould / dirt on the inside lenses. I have already taken off the outer lens by removing the sticker and rotating it. However I need to go in deeper to clean glass/lenses below. I live in a place with no canon authorised canon repair. Please give me a link or some way to get hold of a service manual, NOT an operation manual.Searching the web, I see that Canon do not publish service manuals publicly, so I hope you can help.