/members-area/personalblogs/b/nexgen-flight-simuator/posts/nexgen-collins-radio-813h-1-cdu---tear-down+5vdc regulator+12vdc / +15vdc regulator-12vdc / -15vdc regulatorVideo MonitorChar DecemptyLine MemoryPOS DECDIOCK/DI dug this CDU out of my shed. The only document that I have was the pinout of the two rear connectors . I wish to thank KG at Collinsen-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/nexgen-flight-simuator/posts/nexgen-collins-radio-813h-1-cdu---tear-downWed, 15 Jul 2020 17:56:34 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5fc4a8ae-74d2-4a50-88dc-d19e4747f82aDAB1<p>Your tear down takes me back many years when I used to do avionics work.</p><p>&nbsp;</p><p>DAB</p><img src="https://community.element14.com/aggbug?PostID=9611&AppID=300&AppType=Weblog&ContentType=0" width="1" height="1">