PTS 68xx Field Service Manual
Note : Many chapters contain fold-out pages. As my scanner only takes A4 pages, the fold-out pages have been copied on A4,so you need to glue the pages together. Sometimes, there was text on the back op the fold-out page. These pages have been copied too. Where appropriate, blank pages have been inserted. I hope I did it the correct way. This should be taken into account when printing double-sided!