I picked up this scope from the LeCroy eBay store earlier this year, and with it's 2GHz bandwidth its been a great help in checking DDR3 signal integrity.
However it's in really rough shape. The printer died almost immediately and I've had to replace all of the encoders on the front panel. The LCD is bit flaky too. And while it was supposed to be freshly calibrated, the trigger seems to be a little off. However I got a fantastic deal on it, and it serves it's primary purpose of checking signal integrity so I am happy.
Lecroy was kind enough to send me a service manual, but they omitted the schematics. By the way, Lecroy customer service has been great; very friendly and helpful.
So does anyone here have schematics for this scope? I'd like to try to get the printer going again.
Now for the fun part: I have this crazy idea that I might be able to repurpose the capture board and build a more modern scope around it. 16Gs/s is just too tempting... Schematics would be very helpful for that endeavor.
Thanks!
Your crazy idea is genuinely crazy. This was a very high end scope in its day, even if that was 15 years ago. You won't be able to do better on a hobby level. I'd suggest putting that idea away.
Does your scope have any software options like wave analyser pro? That has very powerful FFT, histograms, jitter analysis, and more. I bought one of these about a week ago, and it has that option plus the DDA/PRML analyser options. The jitter analysis is really fantastic. Lecroy's manual for this option is split up into a dozen files but I put together a single file version just today. I'll share my files if you share your service manual.
Do you have an issue with the rotary encoders responding too slowly? I find that if I want to move the cursors or so other large adjustments, I might have to twist the thing a hundred times to get it to where I want it. It is the one big annoyance I have with this thing.
I don't know, it seems like it is severely limited by the embedded processing power available back then, and that a more modern CPU and FPGA combo could really make difference.
Honestly though, I love this scope so much just for the extra bandwidth that I'm reluctant to mess with it.
No, I don't have any options on this scope, which is why it was so cheap. LeCroy still wants real money for the options. Not UNREASONABLE money per se, just too much to put into a scope that could fail at any time.
I would love to have that jitterpro option for an upcoming project, and I may just have to buy it.
Yes, the rotary encoders are handled poorly. Mine were actually worn out to the point where they really barely worked at all. After I replaced them, they worked perfectly, but they were still very slow to move the cursor. This appears to be just how they are coded. It's a giant pain.
There's a single 68K (I think) microcontroller on the front panel board, if I remember right... Chances are decent that the encoder acceleration is handled within and could be tweaked without messing with the main CPU board.
LeCroy customer service emailed me the service manual just for the asking. I will check and see if I am allowed to share it. Or you could just ask them and they will probably just email it to you.
Anybody have the 9xx series front bezel, 3-d printing model??
Hi! I replaced the LCD panel with a new one and the backlight brightness is a little brighter than I would like. In the menu i can only change the brightness of the text, but I need to change the global backlight brightness and possibly contrast. I can't find such a function in the manuals. is it possible to do this?