Search found 5 matches

by Dave42
Tue Sep 06, 2016 2:51 am
Forum: DSO 068
Topic: BOBs and Power Supplies and schematics.
Replies: 4
Views: 5709

Re: BOBs and Power Supplies and schematics.

You can download a schematic from the bottom of the DSO 068 page
by Dave42
Tue Sep 06, 2016 2:47 am
Forum: DSO 068
Topic: Is there a way to check if JYE117 is working correctly?
Replies: 0
Views: 2425

Is there a way to check if JYE117 is working correctly?

Is there a way to check if JYE117 is working correctly? When JP2 shorted and powered by the USP everything works correctly. But when I unshort JP2 and momentary ( with the USB pluged in) if I Press the adjustment switch the oscilloscope only momentarily turns on , The LED on JYE118 blinks brightly a...
by Dave42
Mon Aug 22, 2016 3:37 am
Forum: DSO 068
Topic: Way to adjust vertical sensitivity
Replies: 1
Views: 3083

Way to adjust vertical sensitivity

Is there a way to adjust the vertical sensitivity? When I perform the 5v Test signal C8 compensation adjustment, I Get a 2.8 graticule deflection, instead of the 2.5 graticule deflection that I should see. I see similar results when I perform the test signal C5 compensation adjustment. I have measur...
by Dave42
Sun Aug 14, 2016 1:14 am
Forum: DSO 068
Topic: Gnd indicator does not point at gnd
Replies: 2
Views: 3563

Re: Gnd indicator does not point at gnd

Thanks that worked
by Dave42
Wed Aug 10, 2016 1:35 am
Forum: DSO 068
Topic: Gnd indicator does not point at gnd
Replies: 2
Views: 3563

Gnd indicator does not point at gnd

Hello,
The GND indicator does not point at grounded waveform when I ground the input (set S1 to GND).
Is there a way to reset the indicator?
Any help would be greatly appreciated
Thank you