Thanks Ozan -- I will look into R1003 and 3F? too.
The last time I checked (a while ago) all of the power supply voltages were good. But when I open it back up I will double-check.
Except for the odd shift and intensity problem in the Ext Horiz, position, everything else works fine.
My profession is plant ecology, and although there are some plant physiology parallels to circuits, fixing a scope is a bit out there for me. But it's a nice change, and I would rather do that than crossword puzzles. I also have a lot of old audio gear that needs maintenance once in a while, and I have built some things, like a preamp.
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On 3/31/2022 8:13 PM, Ozan wrote:
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For horizontal shift Mark's reply is most likely. If it doesn't fix the shift confirm that you see 0V at connector CJ of sheet <10> with Ext Horiz grounded, and Ext Horiz mode selected.
Intensity could be because of shifted R1003 on page <14> or dirty contact 3F in the same sheet.
Are all supply voltages at their target levels?
Ozan
