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8720D Repair

Question asked by egore on Aug 7, 2012
Latest reply on Aug 18, 2012 by egore
I'm trying to repair 8720D network analyzer. There is no internal or external monitor picture. Red led light on CPU board always on, the light is DS403. The manual say that in this case replace A7 CPU board assembly. I would be happy to do so, but nothing is available on eBay, Agilent parts, etc. Just trying to understand this error, may be fixing the board. No documentation available anywhere.
Please, help to find definition of this red LED error, or may be someone has this board laying around.

Thank you in advance.