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| Tektronix P6245 Active Probe issues with config data |
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| snoopy:
Hi Just got a 2nd hand Tek P6245 Active Probe. Probe seems to work but the scope (TDS784A) cannot read the configuration data from the probe and as such cannot run a probe compensation procedure which results in "Probe comp failed". I note that the probe has TDS500/600 written on it but I thought the newer scopes would still be able to read the data. What data is stored in the EPROM ? Any thoughts ? Cheers |
| snoopy:
For those interested in this probe I have uploaded all of the information I have on it which includes schematics, EEPROM dumps etc. cheers |
| d37duck:
Hi snoopy, Thanks for the Tek 6245 data download, nice work. Please tell us what equipment you used and your procedure for recording the data. Regards, |
| snoopy:
--- Quote from: d37duck on May 20, 2022, 03:11:25 pm ---Hi snoopy, Thanks for the Tek 6245 data download, nice work. Please tell us what equipment you used and your procedure for recording the data. Regards, --- End quote --- It was a while ago but I picked up a small EEPROM programmer from ebay I think called CH341A programmer and used that to read and write the data on the probe EEPROM (24C02). From memory I may have used EZ hooks connected directly to the pins on the probe scope connector whilst it was not connected to the scope of course. Supply required. cheers |
| Mechatrommer:
mind to tell what was the issue with config data? i have the Tek P6245 probe but dont have a Tek scope. was bought faulty with some ribbon carbon traces broken... i wonder how Tek scope communicates with the probe? does the Tek scope modify the eeprom content during recalibration? |
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