[AMMRL] #agilent #Hardware #VarianAgilent

From: Lin, Penghui via groups.io <penghui.lin=uky.edu_at_groups.io>
Date: Fri, 28 Feb 2025 11:33:21 -0800

Dear AMMRLers,

We had a 600 MHz Agilent DDR2 system.

I recently noticed the proton channel (1st channel) tune has some problems.
It shows very noisy signals (first picture). But the carbon channel (channel 2)
is normal.

If I swapped the cables on the VFS between channel 1 and channel 2, and the
proton went back to normal and I am having troubles with carbon tune now.
(proton tune back to normal 2nd picture).

When I check the signals coming out from the VFS on channel 1 and channel 2
with an oscilloscope, the "problematic" channel 1 signals look like 3rd picture
and the normal channel 2 signals look like the last picture.

Does this mean this VFS board has problems? If so, is there an easy way to
fix it?

Thanks,
Penghui


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Received on Fri Feb 28 2025 - 11:53:08 MST