Search found 11 matches

by albenbrewder
Mon Dec 04, 2017 10:55 pm
Forum: DSO Shell
Topic: Missing button response
Replies: 8
Views: 7219

Re: Missing button response

20171204_160755_resized.jpg 20171204_160733_resized.jpg Boot Screen.jpg Boot Screen.jpg I have reduced the resistor to 470 ohms... with no affect... V/Div button will still not select the Voltage box on the screen Very strange symptoms.. Voltage sensitivity can be adjusted directly upon boot of the...
by albenbrewder
Fri Dec 01, 2017 9:08 pm
Forum: DSO Shell
Topic: Missing button response
Replies: 8
Views: 7219

Re: Missing button response

sch-1.jpg Photo-1.jpg sch-2.jpg Sorry for the long delay... I am back on this project.... I have measured everything in the V/DIV circuit... The only thing found in error was the resistance reading across R-26... It is supposed to be 10 K, It measures 5K. I replaced the resistor with another 10 K r...
by albenbrewder
Wed Oct 25, 2017 8:30 pm
Forum: DSO Shell
Topic: Missing button response
Replies: 8
Views: 7219

Re: Missing button response

I originally posted this in the "Tips and Troubleshooting" topic.... But it fits better here... Everything running EXCEPT...V/DIV not working Postby albenbrewder » Mon Oct 23, 2017 8:17 pm Ref: boards: 109-15000-00E (Display); 109-15001-00E (Analog) Software: 113-15001-064 Initial Display ...
by albenbrewder
Mon Oct 23, 2017 8:17 pm
Forum: DSO Shell
Topic: FAQ, Tips, and Troubleshooting [Updated Oct. 11, 2017]
Replies: 13
Views: 100367

Everything running EXCEPT...V/DIV not working

This has been re-posted to 'Missing Button Response' section... Ref: boards: 109-15000-00E (Display); 109-15001-00E (Analog) Software: 113-15001-064 Initial Display board check showed everything working EXCEPT V/Div push button did nothing. I have checked all connections and DB4-DB7 appear OK, (Pull...
by albenbrewder
Sat Oct 03, 2015 8:48 pm
Forum: DSO138
Topic: New kits - 13803/4K - F/W .050
Replies: 43
Views: 42200

Re: New kits - 13803/4K - F/W .050

Is this topic still active? I posted a question on a different forum section (DSO138 firmwareupdate) and have not received any reply...
Hello.... anybody there?
by albenbrewder
Wed Sep 30, 2015 8:08 pm
Forum: DSO138
Topic: DSO138 firmwareupdate
Replies: 10
Views: 23986

Re: DSO138 firmwareupdate

OK, I have read the link that states you will sell an updated board for $18 with the -50 software... Does the board have all components mounted, the SMD's mounted, or nothing mounted? If only the SMD's are installed, and remaining parts are supplied (so I can enjoy re-soldering the board...), May I ...
by albenbrewder
Sat Sep 26, 2015 10:39 pm
Forum: DSO138
Topic: Case suggestions?
Replies: 4
Views: 5737

Re: Case suggestions?

I found one here http://www.thingiverse.com/thing:959009/#files.
Is that what you found?
by albenbrewder
Sat Sep 26, 2015 10:29 pm
Forum: DSO138
Topic: Case suggestions?
Replies: 4
Views: 5737

Re: Case suggestions?

Where did you find 3D printer plans?
by albenbrewder
Sat Sep 26, 2015 10:07 pm
Forum: DSO138
Topic: DSO138 firmwareupdate
Replies: 10
Views: 23986

Re: DSO138 firmwareupdate

I find that there is a new firmware version for the DSO 138. (-050) I also see that I apparently, cannot receive it because of "imitation" problems... I have a "legal" kit and would like to keep it updated. I do not believe I do not believe I should be penalized. May I receive an...
by albenbrewder
Mon Apr 27, 2015 8:53 pm
Forum: DSO138
Topic: DSO138 firmwareupdate
Replies: 10
Views: 23986

Re: DSO138 firmwareupdate

Success! Thank you! Problem with SEN2 was traced to resistor R23 not being soldered correctly to one end... (Thank you for including a spare. The original SMT resistor is now located somewhere within my carpet). Problem with flash programming was with a poor crimp connection on one of the UART conne...