Hello everyone. I'm new to the group, so I really appreciate your messages, which have helped me a lot with the input attenuator repair on my HP 8594E analyzer.
The last thing I have done is change the button cell (from 1995) and the supercapacitor that supports it, since it was swollen and damaged (of course, entering the correction data by hand after the change).
Before, it indicated me, in the options screen, the following:
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004: OVEN
101: FADC
103: GATE REV B
010: TG
043: RS232 + PARALLEL
8594E? #1870
Firmware rev 950914
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Now, after changing the RAM battery and capacitor, the options window shows
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004:OVEN
101:FADC
010:TG
043:RS232 + PARALLEL
8594C? #-13585
Firmware rev 950914
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Option 103 no longer appears... and the serial number has changed and the model too... OMG...
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Also, when powering on the analyzer, it previously displayed a 360-second countdown during warm-up and no longer displays it after a battery change.
Does anyone have any suggestions or ideas where the problem could come from?
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I also have problems with the TG as it seems to put out too much power, although I haven't looked into this yet... Between 0dBm and -10dBm the trace is +4dBm. Then when I turn down the power or dim by hand, it gets even more out of place, dimming as it pleases, which I will review, but the excessive power is not a consequence of that dimmer, or so I think...
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