This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
Text excerpt from page 11 (click to view)
7. EXPLODED VIEW 22
21
DISASSEMBLY 1. Remove the battery cover M, and loosen the six screws H on the lower case 8, then open the lower case. 2. Loosen the six screws I on the PCB ass'y 1, and remove the PCB ass'y.