Hi.
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> I meant to say: Can you push the jog button to the side (NOT down) WHILE RESTARTING the device?
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Yes, I held the rotary knob on the right side and then started the device until the image appeared on the screen.
I also did it while holding rotary knob on the left side. The situation does not improve.
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Is there any other test or electronic circuit to measure ?
(I have several Keysight lab measuring instruments)
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Sincerely,
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g.
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Gerd