On Thu, Mar 31, 2022 at 05:22 PM, Mike Merigliano wrote:
After switching to Ext Horiz, the trace was way off to the left, so I have to
turn up the intensity knob to 3 o'clock and the Horiz Position knob to 1
o'clock. Normally, In A sweep, the Intensity knob is around 11 o'clock, and
when in A Intens B or B delayed, the Intensity is at noon.
Is the low intensity and shifted position while in Ext Horiz normal? I did not
see anything in the manual about this. Also, the phase shift a 1 MHz is 42
degrees. Is this excessive? The shift negligible/invisible at 100 KHz.
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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
