An overall bloc diagram of the D-116 power supply including G1 and G2. http://www.zeltrax.com/classiccmp_forum/psu_overall_bloc_diagram.jpg
The complete schematics of the part of the power supply named G2. http://www.zeltrax.com/classiccmp_forum/g2_schematics.jpgA drawing of the regulation board of the power supply G2 with the physical locations of the components.
http://www.zeltrax.com/classiccmp_forum/g2_regulator_board.jpg The schematics of this regulation board. http://www.zeltrax.com/classiccmp_forum/g2_regulator_board_schematics.jpgAnd a bit of literature concerning the principle of operation about the regulation with this PSU (you will understand better why I am a little bit lost ;-) This principle of regulation with a panoply of verification and Protection systems everywhere is unusual for me)
http://www.zeltrax.com/classiccmp_forum/psu_regulation_principe.jpgI have already tried without the CPU board: same symptoms. Next step, try to check the capacitors in operation.
And because all this is a little bit boring, here is, as a small gift, a photo gallery of the machine under different angles ;-)
Ensemble http://www.zeltrax.com/classiccmp_forum/serie01/ensemble_01.jpghttp://www.zeltrax.com/classiccmp_forum/serie01/ensemble_02.jpg <http://www.zeltrax.com/classiccmp_forum/serie01/ensemble_02.jpg>
D-116 Front panel http://www.zeltrax.com/classiccmp_forum/serie01/d116_front_panel_01.jpg http://www.zeltrax.com/classiccmp_forum/serie01/d116_front_panel_02.jpg http://www.zeltrax.com/classiccmp_forum/serie01/d116_front_panel_03.jpg D-116 open rack http://www.zeltrax.com/classiccmp_forum/serie01/d116_open_01.jpg http://www.zeltrax.com/classiccmp_forum/serie01/d116_open_02.jpg G2 regulator board http://www.zeltrax.com/classiccmp_forum/serie01/g2_regulator_board.jpg Disk Pack drive Diablo Model 40 http://www.zeltrax.com/classiccmp_forum/serie01/diskpack_drive_01.jpg http://www.zeltrax.com/classiccmp_forum/serie01/diskpack_drive_02.jpg http://www.zeltrax.com/classiccmp_forum/serie01/diskpack_drive_03.jpg Mag-tape Pertec 8840A http://www.zeltrax.com/classiccmp_forum/serie01/pertec_close.jpg http://www.zeltrax.com/classiccmp_forum/serie01/pertec_open_01.jpg http://www.zeltrax.com/classiccmp_forum/serie01/pertec_open_02.jpg http://www.zeltrax.com/classiccmp_forum/serie01/pertec_open_03.jpg http://www.zeltrax.com/classiccmp_forum/serie01/pertec_open_04.jpg http://www.zeltrax.com/classiccmp_forum/serie01/pertec_open_05.jpg Drum printer Data Products model 2230 http://www.zeltrax.com/classiccmp_forum/serie01/printer_01.jpg http://www.zeltrax.com/classiccmp_forum/serie01/printer_02.jpg http://www.zeltrax.com/classiccmp_forum/serie01/printer_03.jpg Terminal Entrex http://www.zeltrax.com/classiccmp_forum/serie01/terminal.jpg http://www.zeltrax.com/classiccmp_forum/serie01/terminal_nacked.jpg Rear panel / connectors http://www.zeltrax.com/classiccmp_forum/serie01/rear_panel.jpg From inside http://www.zeltrax.com/classiccmp_forum/serie01/flat_cables.jpghttp://www.zeltrax.com/classiccmp_forum/serie01/from_inside.jpg <http://www.zeltrax.com/classiccmp_forum/serie01/from_inside.jpg>
Haa I can't wait to operate this heavy machine! ;-) Dominique
