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| Oscilloscope HP 54600A |
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| radiohomebrewer2000:
iMo, Thank you. I watched the video. So, I probably need to get a programmer that can read both the DALLAS and the ROM but also be able to write to the DALLAS replacement. Interesting how he needed to change the caps because they were leaking even though the scope works. I did see a comment on the video that said: "You do not NEED to save the Dallas chip. Replace it and power cycle the scope. Then run it's internal calibration. Done." I am not sure how true that is. |
| iMo:
I saw an YT video where the guy did the calibration on a 54xxx that way - he simply replaced the Dallas and ran the calibration (you have to connect the rear BNC with a BNC on the front panel during the calibration). Perhaps it works fine that way - what the service manual says? PS: The 54600A/B's SM says for the Vertical selfcal you need to connect the rear output to the specific input, for Delay selfcal you have to connect a pulse generator set to 100 kHz and 1 V p-p and with a rise time less than 5 ns to both channels 1 and 2 (50ohm). |
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