It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
Text excerpt from page 69 (click to view)
AVX-P7700W
- Removing the Mother PCB
1. Remove the screw M to take off the holder. 2. Remove the screw N. 3. Unsolder the tuner PCB the catches. 4. Straighten the nine catches marked with arrow to remove the mother PCB.
M
Holder
Mother PCB
Solder
N
- Precaution in assembling the drive mechanism
1. Insert the drive mechanism in the right and left rail units equally to the both side. If inserted unequally, the drive mechanism will not operate normally. 2. The screw marked with arrow is for preventing the drive mechanism from dropping. Be sure to fasten the screw to prevent danger in case of car crash. Drop prevention screw OK Drive Mechanism NG