Search
Member List
Calendar
Help
|
HP-19C Repair Odysee
|
|
07-05-2021, 04:41 PM
(This post was last modified: 07-05-2021 04:41 PM by PANAMATIK.)
Post: #70
|
|||
|
|||
RE: HP-19C Repair Odysee
(07-05-2021 12:47 PM)Artur - Brasil Wrote: You said:"After removing the printer from the circuit and simulating the ON/OFF switch, MAN/TRACE/NORM and the home switch" -well, I did the connections for ON state: connecting S1c – S1d – S1e (12-9-2) togheter. But, what to do with HOME and MAN/TRACE/NORM? Could them be left open just for simple tests? The MAN/TRACE/NORM switch is connected to pin 2,3,6 of the 25-pin keyboard connector. when 2-3-6 open this is TRACE mode, 2-3 connected NORM, 3-6 connected MAN mode. If HOME is open at power up, the motor moves endlessly until HOME connects to GND, indicating the motor home position. Bernhard That's one small step for a man - one giant leap for mankind. |
|||
|
|
« Next Oldest | Next Newest »
|
User(s) browsing this thread: 12 Guest(s)