CRT oscilloscope display problem !!

[R_J]

Re: CRT oscilloscope display problem !!

These may also be of help?

[SM-Piyes90]

Re: CRT oscilloscope display problem !!

Thanks to all of you for the support , and for the PDFs , they will be certainly helpful .

[audiofreak19]

Re: CRT oscilloscope display problem !!

What did you figure out with it. What was the issue

[SM-Piyes90]

Re: CRT oscilloscope display problem !!

What did you figure out with it. What was the issue

I have not figured anything out yet , i am still analysing the schems and mainly the attenuators circuits witch i suspect the most .

I hope i can find something in that section .

[SM-Piyes90]

Re: CRT oscilloscope display problem !!

Hi again everybody. Am back to the scope repair .

This time i got the real5502 schemes.


Can someone here explain how the signal is transmitted from the input to the HV crt screen?


Here are the schemes :

[Joseph23]

Re: CRT oscilloscope display problem !!

o.k. i did some searching.

they trade under the name "Protek"
and i found a newer manual that may be close.

hello, I have a protek 6506 with excess brightness, I hope with this diagram that you have published to be able to fix it, thanks