My DSO6034A tells me the cal data is protected, but I have moved the switch up and down and it doesn't recognize the unprotected position.
I've already opened the scope, and the physical switch is fine. When it's in the unprotected position, the center pin is grounded. I'm guessing in the protected position, it pulled up to VCC with a resistor.
Does anybody at Agilent know why this might happen and how I could fix it without sending it to Agilent for a multi-thousand dollar repair fee?
I've already opened the scope, and the physical switch is fine. When it's in the unprotected position, the center pin is grounded. I'm guessing in the protected position, it pulled up to VCC with a resistor.
Does anybody at Agilent know why this might happen and how I could fix it without sending it to Agilent for a multi-thousand dollar repair fee?
The actual problem that it has is a cold start issue. If I power it on when the room is cool, I get varying responses, and booting properly isn't one of them.
If I leave it on in this wacky state for 10 minutes, and then cycle power, it boots fine, reads the cal protect switch fine, and generally runs great.
So I looked on Agilent's site AND this scope has a known defect which prevents booting! Image that!!!
I called Agilent Friday, and they told me that this scope has already had its main board replaced and they won't do it again.
Hmmm, so they sell a defective product, fix it one time (with a defective part) and when that defective part goes bad again, I"m SOL.
Not a good way to stand behind your products Agilent. I love car analogies and I wonder if you purchased a car with a known window falling off the track defect (this is a real example from a friends BMW 3 series), would you expect the car company to only fix it once? When the window falls out two year later, should they say 'sorry, we replaced that defective plastic guide with another plastic guide and we won't do it again, sorry your window fell down into the door again. I think not. (and BMW will keep replacing it.)
If Agilent won't fix my scope, how about providing a schematic so I can fix my scope? How about telling the community what is failing on these defective boards, so WE can fix our scopes????
We have DSO7032A scopes, 8 of which had CAL PROTECT switch issues.
IN-CIRCUIT testing suggested that the switch was OK.
BUT, it was not.
Out-of-circuit testing revealed a BAD SWITCH. All 8 were BAD!
Take a look at this Instructable created to address this issue named:
Agilent DSO7032A Oscilloscope - Repair of CAL PROTECT Switch
See if this helps. Good luck.