Re: HP 83592B hangs 8350B sweeper
¿ªÔÆÌåÓýThanks for the replies. Cliff: I tried the contact cleaner. No improvement but it was worth a try. There are no error messages. ? Chuck: I found the battery. Slight corrosion mainly on the battery, a little on the metal clip. Cleaned it up and borrowed a battery from my HP35. I found a supplier of bad HP35 batteries that only lasted a month, also a supplier of good ones that have lasted several years and hold a charge. I will try to find them again and post a link. These batteries are used in the HP8672A and HP8566A, probably others. Anyway this is not the problem because both my 8350B work fine with other plugins. There is no sign of damage to the 8350B or the 83592B, they are clean and shiny like new. That is not to say there is no problem caused by chemical fumes. A scrub in soapy water and rinse would be a last resort but I have done it before. ? Dennis: Yes that was the first place I looked. It passed all the tests. See below. ? Dave: I will re-check the capacitors. My resistance measurements showed a drop when A7 was removed but it was masked by the 22 ohms of the RPG lamp. I will try my ESR meter. ? The hanging occurs when starting in start/stop mode. Once I get it into CW it remains on for hours. I think it best to carry on with the full calibration. Also INSTR PRESET freezes the 8350B with blank start/stop displays. Cycling the ?power and catching CW is the only way to recover. Once the CW setup is recovered it comes on reliably in that mode. ? Is -2 to +23 dBm normal for this plug-in? (no opt 002 attenuator) Does anyone have a spare cover for the PCBs for sale? The plate that goes on top of the 83592B and has many screws. it also holds the big heat sink in place. It is obvious that someone else's fingers have been inside this plug-in. Peter. ?
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