Good scan of the original service manual. All schematics and adjustment procedures are there. It helped me to fix a long lasting problem with the tracking circuitry. The manual also includes the supplementals 1,2 and 3. Included are; electrical schematic's , pcb layout's, mechanical drawing's and exploded views, disassembly manual and maintenance procedures. 236 pages.
Excellent copies.
I will use "Owner Manual" again a second time.
Text excerpt from page 23 (click to view)
5-2. Precautions for Handling the Drive
In performing a repair, observe the following precautions.
1 Do not turn the power switch on until the palmrest and the keyboard are installed completely. 1
2 If the power switch is to be turned on with the set in disassembled state, be sure to load a dummy disc in the drive. 2
Keyboard
Palmrest
3 If the power switch is to be turned on with the set in disassembled state for checking the drive condition, be sure to turn the power switch on with the tray drawn out. 3