Products > Test Equipment
Agilent 34970A errors and battery replacement
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free_electron:
Thats corrupted cal memory. I can fix those.
plantgrower:
>Thats corrupted cal memory. I can fix those.

Can you please tell me how ? Does it involve soldering a new chip. I couldn't find that f-ram version only the eeprom version on digikey.

I presume it also involves the machine being recalibrated.

If you could tell me what to do it may be worth having a go rather than sending it back.
free_electron:
It involves replacing 1 chips programmed with a known good image. part number is FM24C04B-G
Then a recalibration is in order. it may still fail calibration if there is really a defect on the dmm card. but out of the 8 machines I fixed I've only had one with a broken card. The rest were all revived.


plantgrower:
How do I program the chip with the image ?

I paid £147/230USD for this machine I think its just seven years old. It looks immaculate on the inside very good on the outside. The person selling these had quite a few to sell and this was the only machine with a problem. The others he sold for £290/454USD.

Sounds like it may be worth trying to repair it. Agilent want a lot more than 75USD to calibrate it though more like 180USD.

Thanks for all the help.
free_electron:
you need an eeprom programmer that can handle the frams ... and the image file.
I can send you a programmed fram if you want. but you will have to wait a few weeks..
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