Author Topic: New Guy seeking Oscilloscope advice  (Read 2401 times)

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Offline Gyro

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Re: New Guy seeking Oscilloscope advice
« Reply #50 on: March 18, 2018, 01:55:21 am »
A useful list, saved for future reference. Thanks!  :-+
Chris

"Victor Meldrew, the Crimson Avenger!"
 

Offline The_Boots

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Re: New Guy seeking Oscilloscope advice
« Reply #51 on: March 18, 2018, 10:22:15 am »
I don't know... I tried hooking the A gate output on the back to another oscilloscope (a cheap USB one) as was recommended in the "Troubleshooting Your Oscilloscope" manual and nothing.
I also now have no dot at all, and back when I did, the intensity knob just messed with the focus, although not as much as the actual focus knob. Beam finder still makes the dot show up just fine.
It feels like things are deteriorating... I'm thinking of trying to find a local hobbyist who might help. Any suggestions on where to look?
 

Online rhb

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Re: New Guy seeking Oscilloscope advice
« Reply #52 on: March 18, 2018, 10:52:02 am »
Knowing where you are would help.
 

Offline The_Boots

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Re: New Guy seeking Oscilloscope advice
« Reply #53 on: March 18, 2018, 11:01:19 am »
I'm in Ann Arbor, Southeast Michigan.
 

Online james_s

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Re: New Guy seeking Oscilloscope advice
« Reply #54 on: March 19, 2018, 05:04:14 am »
You said you heard an audible pop, that suggests that there should be some visible sign of problems somewhere. Given the age of the scope, I would suggest starting by looking at the electrolytic capacitors in the power supply and check all the voltages there. Capacitors have been known to pop their seal and that could cause a low or missing power supply voltage.

If you feel like you're getting in too far over your head I would suggest putting it all back together so you don't forget where anything goes then set it aside until you have some more experience. Heck sometimes just setting something aside for a day or two then looking at it again works wonders.
 

Online Peabody

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Re: New Guy seeking Oscilloscope advice
« Reply #55 on: March 19, 2018, 05:16:38 am »
I'm thinking of trying to find a local hobbyist who might help. Any suggestions on where to look?

Try to contact some of the organizers of this Meetup group in Ann Arbor, and see if they know of anyone who might be able to help:

https://www.meetup.com/AllHandsActive/
 

Online rhb

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Re: New Guy seeking Oscilloscope advice
« Reply #56 on: March 19, 2018, 07:38:15 am »
I second the suggestions by @james_s.  You've got a power issue if the beam  goes off the screen.
 


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