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ESA Hardware ID Codes

Question asked by MarkBielman on Jun 7, 2019
Latest reply on Jun 9, 2019 by MarkBielman

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Hello. Just picked up a used E4407B (needs help) and wondering what's up with the strange results on the hardware screen.

Not sure if HW ID 226 is real or not.

Anyone have a list of these ID codes? The unit aligns fine (no errors at least) but it does say "Frequency Reference Error" sometimes... intermittently. Not sure what that means either. The 10 MHz looks spot on. (so does the 50 MHz cal signal)

Have NOT opened up the unit yet.

Cheers!

Mark

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MarkBielman Jun 7, 2019 8:22 AM
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I may have figured this out. Looking at similar screens it looks like the "Front Panel Interface" is missing. So the goofed up line with ID 226 should be that interface w/ID of 12.

This is from my E4402B
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MarkBielman Jun 9, 2019 12:41 PM
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This "Frequency Reference Error" is not going away now. Is this referring to the 10 MHz PLL? It does the alignments w/o error BUT if I cycle power it requires ALL alignments every time.

Another interesting item: in the Licensing Screen, it shows the key for an RF Preamp. But no preamp On/Off in the menus.

This is becoming a challenging repair/restore project!

Mark
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ESA Hardware ID Codes

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