Epson Computer Hardware User Manual page 9

Power supply connector pin assignments (CN1)
Diskette drive connector pin assignments (CN11)
**All odd-numbered pins are grounds
Hard disk drive connector pin assignments (CN12)
'Active low logic
Speaker connector pin assignments (SP1)
Pin Signal
1 Speaker
2 (+)
Battery connector pin assignments (CN3)
Pin Signal
1 RED wire (3.6v)
2 BLACK (Ground)
Option card riser board connector pin 1;
*Active low logic
Option slot connector pin assignments
*Active low logic
3/94
EPSON Endeavor L
assignments (CN2)
EPSON Endeavor L - 9