Keysight DSOX1102G Repair Question
Hello All,
I have a 6-year-old Keysight DSOX1102G scope. After sitting for about 6 months in a closet I went to use it and it booted up with an error message “System Concerns Detected – P-Clock failure – The default setup was loaded.”
After consulting the Keysight website (Not user friendly) I found a reference to that problem that suggested upgrading to the latest firmware, and running “Utility > Service > Diagnostics > Hardware Self Test.” I did that, but I still have the problem, but with a slightly different error message “ System Concerns Detected – System clock is defaulted – The default setup was loaded.” The last suggestion from the website document is to try a “Secure Erase” which is defined as an “aggressive reset.” Not sure what that may mean, and I have not tried it yet.
If I reset the date and time the machine seems to work, but once I power down, I am back to “System clock is defaulted” situation
Keysight wants $744.00 for a repair.
Any advice appreciated.
Thanks
ceulrich
Hello All,
I have a 6-year-old Keysight DSOX1102G scope. After sitting for about 6 months in a closet I went to use it and it booted up with an error message “System Concerns Detected – P-Clock failure – The default setup was loaded.”
After consulting the Keysight website (Not user friendly) I found a reference to that problem that suggested upgrading to the latest firmware, and running “Utility > Service > Diagnostics > Hardware Self Test.” I did that, but I still have the problem, but with a slightly different error message “ System Concerns Detected – System clock is defaulted – The default setup was loaded.” The last suggestion from the website document is to try a “Secure Erase” which is defined as an “aggressive reset.” Not sure what that may mean, and I have not tried it yet.
If I reset the date and time the machine seems to work, but once I power down, I am back to “System clock is defaulted” situation
Keysight wants $744.00 for a repair.
Any advice appreciated.
Thanks
ceulrich
I know nothing about this but if resetting time & date fixes it then does it just need a new memory battery/capacitor to retain settings?
russc, thanks for the comment. I had the same thoughts, but did not want to tear into the instrument based on only my guess at the problem. I was hoping that someone on the Forum might have direct hands-on experience with this problem.
I have done a bit more Internet research, and found a comment by someone with the same problem, and confirmed that a coin-cell was mounted on the motherboard, and replacing it solved his/her problem. So, with that info, I decided go ahead and open the instrument up. In case some future reader stumbles on this post, I will provide a bit of detail on the process.
To remove the plastic case, remove two screws on each side of the handle, and two screws on the bottom (all #3 Torx). The plastic case comes apart very easily. There are 9 screws holding the metal case over the motherboard, again all #3 Torx. Once the screws are removed, a little jiggling is needed to remove the metal case, it will not come completely off since it is tethered to the motherboard by a few power wires. However, the CR 2025 coin-cell is easily accessible for replacement. The power button is free floating, mine fell on the floor, so keep an eye on it. Everything went back together again without a hitch, but the two little flip-up feet on the bottom of the case may also come dislodged, so also keep an eye on them.
Replacing the battery seems to have solved my problem. I did a rough calibration check against my HP 33120A function generator and the match was as good as could be expected.
Cheers,
ceulrich
I have done a bit more Internet research, and found a comment by someone with the same problem, and confirmed that a coin-cell was mounted on the motherboard, and replacing it solved his/her problem. So, with that info, I decided go ahead and open the instrument up. In case some future reader stumbles on this post, I will provide a bit of detail on the process.
To remove the plastic case, remove two screws on each side of the handle, and two screws on the bottom (all #3 Torx). The plastic case comes apart very easily. There are 9 screws holding the metal case over the motherboard, again all #3 Torx. Once the screws are removed, a little jiggling is needed to remove the metal case, it will not come completely off since it is tethered to the motherboard by a few power wires. However, the CR 2025 coin-cell is easily accessible for replacement. The power button is free floating, mine fell on the floor, so keep an eye on it. Everything went back together again without a hitch, but the two little flip-up feet on the bottom of the case may also come dislodged, so also keep an eye on them.
Replacing the battery seems to have solved my problem. I did a rough calibration check against my HP 33120A function generator and the match was as good as could be expected.
Cheers,
ceulrich
Thank you ceulrich. Your excellent description was a lot better than the response I got from Keysight which was to offer me a service quote. They didn't even answer my question "Is there a button cell that I can replace", as I assumed that was why it no longer remembered settings. I do love my DSOX1102G so I'm happy that this was such an easy fix.
Hello EwenF,
Thanks for your comment. I am pleased that my post was of help to someone.
Unfortunately, in this day and age, company profits are more important than customer service. A little background story: I had been using Tektronix analog scopes for decades when I bought my DSO, and I was very confused that after of weeks of trying to get the new scope to work, it never seemed to work right. Finally, I sent it back for a no charge warranty repair, they returned it a couple of weeks, and it has been fine ever since. I asked what the problem was, but no response. I assume it was faulty when it left the factory. More than the name has changed.
Cheers,
ceulrich
Thanks for your comment. I am pleased that my post was of help to someone.
Unfortunately, in this day and age, company profits are more important than customer service. A little background story: I had been using Tektronix analog scopes for decades when I bought my DSO, and I was very confused that after of weeks of trying to get the new scope to work, it never seemed to work right. Finally, I sent it back for a no charge warranty repair, they returned it a couple of weeks, and it has been fine ever since. I asked what the problem was, but no response. I assume it was faulty when it left the factory. More than the name has changed.
Cheers,
ceulrich