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Radio Wrangler · 17th Mar 2020, 3:10 pm

I don't have the service info handy at the moment and I've only been in my 465Bs a couple of times (I used to design instruments for 'the other brand' including bits of one scope) So I'm not exactly familiar with the circuitry.

Try to identify the latch that holds the sweep running/sweep stopped information. See if it is stuck in stopped (it likely is) then look to see if it gets trigger impulses from the trigger channel or from the auto-run timer.

David

17th Mar 2020, 3:10 pm	#6
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,902	Re: Tektronix 465 not sweeping I don't have the service info handy at the moment and I've only been in my 465Bs a couple of times (I used to design instruments for 'the other brand' including bits of one scope) So I'm not exactly familiar with the circuitry. Try to identify the latch that holds the sweep running/sweep stopped information. See if it is stuck in stopped (it likely is) then look to see if it gets trigger impulses from the trigger channel or from the auto-run timer. David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done