Hello Dave,
At first, this error 110 is probably caused by a hardware error. The
full error message, if you scroll right might read: 110 "Calibration
Required -- ACAL".
On eevblog, we had a 3458A with exactly this message, which was caused
by a faulty OpAmp in the input MUX, which was successfully repaired,
with remote failure tracing.
So I doubt that a CAL is required.
Memory errors concerning the three nvSRAMs usually create different
messages, I think it's # 212 or alike.
Therefore, please make a complete self test with the front panel TEST
function, and report back, which additional errors show up.
Your serial number relates to a basic instrument from around 1995, which
may have been refurbished, at least the front panel in the last 5 years.
The high calibration count denotes that it still has the old processor
board with 6 EPROMs.
Probably it has old nvSRAM, with nearly exhausted batteries.
Both you can easily see if you open the upper case lid and read the date
codes of the 3 DALLAS RAMs. Please report back.
I can't recommend at all to 'simply' let KS calibrate your instrument,
for several reasons.
If the DALLAS RAMs are affected, they will replace the A5 µP board for
1-2k$.
You could instead save the CAL RAM and exchange the RAMs on your own for
much less money, even if you'd have to buy an appropriate programmer.
If there's a HW error on the analogue board, KS will as well exchange
the whole board for 2-3k$, which you might repair yourself instead.
Now, I just want to wish you a successful knee surgery, and then
discussing your case soon.
Frank
_______________________________________________
volt-nuts mailing list -- [email protected]
To unsubscribe, go to
http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com
and follow the instructions there.
