I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
Text excerpt from page 7 (click to view)
D-NE20/NE20LS
Note: Follow the disassembly procedure in the numerical order given.
3-2. LID UPPER ASSY
2 two screws (upper lid) 3 bracket (hinge R)
4 bracket (hinge L)
1 Push two knobs and open the lid upper.
8 lid upper assy
5 Close the cover until the tip of the cover of the top cover assembly is left open by 5 mm, then slide the top cover assembly in the direction of the arrow.