Search
Member List
Calendar
Help
|
HP-65 card reader problems
|
|
02-16-2020, 10:33 AM
(This post was last modified: 02-16-2020 10:34 AM by teenix.)
Post: #14
|
|||
|
|||
RE: HP-65 card reader problems
(02-16-2020 10:21 AM)coitboy2000 Wrote: Thanks Tony. Maybe its time to buy my first oscilloscope You'll never regret it  A voltmeter will work for these measurements as they stay in that state while the card is in the slot, or at least until it times out if there is an error. The Logic LO signal from the HDS to the CRC starts the process. This is on the CPU board connector pin #9. Pin #1 is marked on the board on the RHS looking down at it with the row of pins on the bottom. cheers Tony |
|||
|
|
« Next Oldest | Next Newest »
|
User(s) browsing this thread: 1 Guest(s)