Electronics > Repair
Agilent 34461A corrupted flash
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analogRF:

--- Quote from: Eng_tech on January 17, 2025, 03:31:05 am ---Jumped the gun I guess. It is randomly doing the same thing upon booting up. Sometimes the meter is working normally and sometimes I just get what I was getting before. It is a big step in the right direction I think. I have to find out why it is randomly working. Yeap, the error had something to do with calibration an serial numbers not matching. But for some reason after looking at the log the errors went away. Still gotta find out what is going on. Maybe I have a bad solder connection on that LAN chip. It was a bit of a pain getting it mounted and soldered. I used hot air on it both on top and below with and Chip Quik paste.

--- End quote ---

very much sounds like a soldering issue either with the LAN chip or the CPU itself. solder paste can be a pain...
Eng_tech:
Well, it completely stop working. I used the LAN chip from off another front panel. So, desoldering and then resoldering it to another pcb may have done damage to it. Maybe I applied heat too long or too much heat I don't know as it has a ground pad under the chip and had to make sure it connected. In any case I'm pretty sure this can be resolved. I'm ordering a new chip actually a couple from Digikey and replace the one I think is defective. This is going to take about a week or so before I get the new chip and put it on. So, I'll give an update when that is accomplished.
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