Hello Hp/Agilent Fans. I recently accuired a HP8563E that I am bringing back to life. It has a Worn CRT but I have one in transit. Otherwise working ok but I want to enter option 008 and wanted to make a Copy of the EEProm first. I used the copy EEprom function but somehow it lost some of its calibration. I have not a flat response over 2.9Ghz.

Sorry for not replying right away I rarely get on here. To test YTO use the YTO adjustment in service manual as reference on the A14 move the jumper this will open YTO PLL and then you can set you YTO to multiplier frequencies and check the power level - If you have another spectrum analyzer I would recommend using spec an to view signal look for any distortion, the level and the frequency.

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I have an HP 8563E with a bad power supply. I have a shorted diode to ground, taking out the -15V supply. I am unable to determine the part no. (Agilent or generic) of the diode. I do not have the schematic for the supply & it is no loger available. I contacted Parts ID and they would not help because the Analyzer is no longer supported.

I did check the batterie and the voltage is normal. The symptoms are: When I power up the spectrum, the Center Frequency is off (like not lock), then when I hit the Center Freq button, I can see that the center frequency is moving toward where it suppose to be and then lock (like center at 900 MHz...this is a 1.8 GHz spectrum).

I have a HP 8563A and hp8563E CLIP from E-Bay. So I try to repair the Logarithmic Amplifie part of the A4 assembly. It seems probable U201 and U501 CA3127E transistor array fail. Thanks again. Cheers, James Liu

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Keysight no longer sells replacement EEROMs for the 8563E. If you have a replacement part, follow the steps on page 229 (227 of the PDF) of the same guide to properly replace the chip. If you prefer to have our expert technicians fix the instrument for you, extended service is …

Have a similar question, except for the HP 8563E/EC series, which have N connector input, 26.5 GHz max frequency, and option 026 available (3.5mm connector.) I selected N input (no option 026) for connector mechanical ruggedness, but will have measurements up to at least 24 GHz. 1.

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