Re: How to troubleshoot a faulty 7B92A?
The horizontal line is generated, of course, by the 7B53. That the line is in the middle or can be adjusted so suggests that the position control and circuitry into the frame is working. Now what doesn't work in the vertical compartment would be blanking, which would make no sense to have.toggle quoted messageShow quoted text
What I suspect is that the sweep is never triggering, remains in a holdoff state. That would blank the display, which I think you see.
I'd be looking at the sweep.
On 3/19/2021 4:56 PM, Thierry Delaitre via groups.io wrote: