Products > Test Equipment

LeCroy WaveRunner 606Zi starting only every Nth try

(1/6) > >>

0xdeadbeef:
I have a LeCroy WaveRunner 606Zi at my desk at work which recently became somewhat difficult to start. If you press the power button in OFF state, you can hear a faint clicking from inside the device but now the fans usually don't start and the scope doesn't boot (at all). If you press the power button for a few seconds in this state, you hear the faint clicking again (indicating that it tried to switch OFF the power supply).
At the moment, I have to repeat this several times until finally the fans start and the scope boots. It seems that starting happens randomly after N attempts, but N seems to get larger every day.
I figure the power button and the whole soft on/off mechanism is still working in principle (relay clicking), so it's probably a start issue of the power supply. I would assume that it's not a major problem as the scope works normally for hours when it finally decides to start. Maybe just a capacitor gone bad in the start circuit of the power supply or whatever.

This scope has a sibling which showed similar issues already some years ago and LeCroy gave us a cost estimate of ~2400€ as fixed rate for exchange of the power supply and calibration - which nobody was willing to pay even a few years ago. At this point, it's almost certain that the scope will be disposed of if I officially declare it defective. Also, it's a large company where equipment like this is never officially repaired in house and taking defective equipment from the waste container is considered theft and sufficient for instant dismissal. No discussions about this please. It's sad, but there is no way to change this.
Anyway, there might be a small chance to attempt an "unofficial" repair if it could be quickly done.

Which brings me to my actual question: is this a known issue for this series and if so: can it be repaired with minimum effort?

joeqsmith:
From my own experience with old test equipment from LeCroy and HP, once that battery starts to fail, they will not power up.  I do not know why.   My WaveMaster behaves like that.   I am not sure with the WaveBlunder as I replaced the battery when I received it and I just dropped a new one in.   

Changing the battery on my 64Xi is a complete tear down.  Even with a zip gun and knowing what I am doing, it still takes me a fair bit of time. 

Posted a link recently of someone pulling theirs apart.  There's only one video on YT so easy enough to find.   You can see how much is involved.   Don't do what this guy does, no ESD mat, wrist strap, bags....  I was cringing while I watched. 

figgie:
I have a WaveRunner HRO 66zi which is the same family. What OS is it running? What version of Xstream/MAUI?

The simple things you can try is take it apart and see if the large LVD connector (red cable) is straight in its socket. In mine it was slightly crooked and was causing all type of odd issues to include power on but no boot. It was also causing a degradation of the hard drive which corrupted a couple of sectors. The CMOS battery is easily accesible and replacable. You will note an issue with the battery when time starts to deviate from where it was set.

I got those corrupted sectors fixed before cloning and installing on a Corsair 1 TB SSD.

No issues with long term measurements (48 hours plus).

Outside of that, you are looking at sending it in to Lecroy unfortunatly.

Kosmic:

--- Quote from: 0xdeadbeef on April 17, 2024, 04:17:52 pm ---I have a LeCroy WaveRunner 606Zi at my desk at work which recently became somewhat difficult to start. If you press the power button in OFF state, you can hear a faint clicking from inside the device but now the fans usually don't start and the scope doesn't boot (at all). If you press the power button for a few seconds in this state, you hear the faint clicking again (indicating that it tried to switch OFF the power supply).
At the moment, I have to repeat this several times until finally the fans start and the scope boots. It seems that starting happens randomly after N attempts, but N seems to get larger every day.
I figure the power button and the whole soft on/off mechanism is still working in principle (relay clicking), so it's probably a start issue of the power supply. I would assume that it's not a major problem as the scope works normally for hours when it finally decides to start. Maybe just a capacitor gone bad in the start circuit of the power supply or whatever.

This scope has a sibling which showed similar issues already some years ago and LeCroy gave us a cost estimate of ~2400€ as fixed rate for exchange of the power supply and calibration - which nobody was willing to pay even a few years ago. At this point, it's almost certain that the scope will be disposed of if I officially declare it defective. Also, it's a large company where equipment like this is never officially repaired in house and taking defective equipment from the waste container is considered theft and sufficient for instant dismissal. No discussions about this please. It's sad, but there is no way to change this.
Anyway, there might be a small chance to attempt an "unofficial" repair if it could be quickly done.

Which brings me to my actual question: is this a known issue for this series and if so: can it be repaired with minimum effort?

--- End quote ---

I would check the PSU. I had a WaveRunner 6100 doing something similar and I had to recap the whole PSU. I normally don't do shotgun replacement like that but in that case so many were faulty and venting that it was just simpler to replace them all.

The scope worked perfectly after that.

Martin72:

--- Quote ---LeCroy gave us a cost estimate of ~2400€
--- End quote ---

They always do this with older models, for our Wavesurfer 422 they also wanted a flat rate of around 2500€.
My tip is also C-Mos battery, then the power supply unit itself (electrolytic capacitors).

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod