This is a collection of all official PC-Engine documentation that exists out there. If you have something that we don't, please add it.
Clicking on a document will take you to a PDF view of that document.
huc6260_cmos_video_color_encoder
huc6270_cmos_video_display_controller_vdc
huc6280_cmos_programmable_sound_generator
huc62_system_outline_note
huc62_tech_notes
hu7_cd_system_software_manual
hu7_cd_system_bios
hu7_cd_system_psg_driver