Electronics > Beginners
Tektronix 547 Oscilloscope
Knox_Harrington:
Hello everyone. So I just picked up this Tektronix 547 scope. I don't know too much about it, but it doesn't seem to be working like the ones I've come across in other Youtube videos. I was hoping someone on here could help me test it or point me in the right direction? Below is a video I took of it powering on for about 45s. Thanks in advance for any replies.
Wimberleytech:
Did you try to turn the "Intensity" knob? Set the trigger mode to "auto."
Alex Eisenhut:
Look at the 4 lights above the CRT, they are telling you the trace is far below the screen, which either means the position control of the plugin needs adjusting, or the plugin might need repairing if the position control does nothing.
The other light tells you the trace is also way off to the left, which means the time base is not triggered, or the horizontal position control on the mainframe needs adjusting.
Please be aware that the 547 has the ability to throw a lot of brightness on the CRT, so much so that it can permanently burn the screen.
So keep the intensity down, at 4 or below. You can also keep it out of focus on purpose to prevent the beam being too powerful on one spot.
It's a nice scope. Lots of work to keep going at first. Tunnel diodes drift over time and some circuits may not work properly anymore.
alsetalokin4017:
RTFM. It will explain how to set the controls for basic display and what all the little lights mean. Once you've got a trace on screen (or fail to get such using the manual's setup) then we can proceed.
http://w140.com/tekwiki/wiki/547
basinstreetdesign:
Another good resource is this:
https://www.sphere.bc.ca/test/tek-parts/troubleshooting-scopes.pdf
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