| Electronics > Repair |
| Fluke PM6666 counter freezing after 3 seconds from turning on. |
| << < (26/27) > >> |
| shakalnokturn:
--- Quote from: pizzigri on October 14, 2020, 12:42:58 pm ---I don’t have the 6669 any more- waiting on an Hp 5385a with which I replaced it. --- End quote --- But the next person who runs into a freezing PM6666 that has both GPIB and MTCXO could give it a try. |
| FransW:
--- Quote from: shakalnokturn on November 01, 2020, 10:56:27 am --- --- Quote from: pizzigri on October 14, 2020, 12:42:58 pm ---I don’t have the 6669 any more- waiting on an Hp 5385a with which I replaced it. --- End quote --- But the next person who runs into a freezing PM6666 that has both GPIB and MTCXO could give it a try. --- End quote --- I am wondering whether this a TE step forward. However, it gives me the time to pdf the service manual and upload to KO4BB. Frans |
| 0xdeadbeef:
If I pull the MTCXO board, the counter won't start anymore. I didn't get why you guys would suspect the MTCXO board anyway. It's working fine and from the previous discussion, it seems clear that the fault is clearly related to the GPIB board. |
| pizzigri:
May I also add that, differently from 0xdeadbeef, my PM6666 never showed (and still doesnt show) any freezing or problems of any kind as long as the GPIB card is removed from it. So it is the card undoubtedly, in my case, causing the lockup. And, the card works perfectly in the PM6669, and viceversa, the card from the 69 freezes the 66! Bah BTW, I have been doing some tests and been surprised with the stability of the MTCXO, I thought it would have been some sort of gimmick instead it actually works, at least as well as a decent TCXO. Definitely better than the TCXO from the HP5385, that's for sure... I havent given up, but the meter is reassembled and working as a standalone counter for now. And again, I want to thank everyone for your time spent trying to help me! |
| pizzigri:
--- Quote from: shakalnokturn on November 01, 2020, 10:56:27 am --- --- Quote from: pizzigri on October 14, 2020, 12:42:58 pm ---I don’t have the 6669 any more- waiting on an Hp 5385a with which I replaced it. --- End quote --- But the next person who runs into a freezing PM6666 that has both GPIB and MTCXO could give it a try. --- End quote --- I still have the PM6666, I sold the PM6669, which btw worked perfectly. |
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