HP, Touch terminals, models:

13220	Technical Information
2621B	Service Manual
2640B	Reference Manual
ElitePOS G1	Disassembly Instructions Manual
Engage Go Convertible System	Hardware Reference Manual Maintenance & Service Manual
Engage Go Mobile System	Product End-Of-Life Disassembly Instructions
Engage One Pro	User Manual
HP700/22	User Manual
RP7 Model 7800	Hardware Reference Manual Maintenance And Service Manual
Rp3000 - Point of Sale System	Reference Manual Installation Manual
rp5800	Maintenance And Service Manual Reference Manual Installation Manual