Hello,
I acquired a Sencore LC103 from an auction this past summer. Luckily, it seems to work well. At the time, I did some digging for any information I could about the unit and, over time, came up with some interesting materials....
1. Complete BOM files for the LC77, LC102, and LC103
2. Calibration procedures for LC77, LC102, and LC103
3. Schematics and parts lists for the LC77, LC102, and LC103
4. Common fix list for the LC103
5. Sencore's "FinalCal" calibration software for the LC103
I'm assuming that item 5 will interest most people here.
The FinalCal software is complete (please see the attached pictures of the software up and running on my old XP laptop) and even includes the source code in a separate folder. There are some things to figure out though, see below:
• You will see in the calibration procedure instructions, included with the images, that there are a few separate items called for: final test box, cal disk (more on this in the next point), ringer test box, and ringer cal box. There is also a note towards the end instructing the operator to bring the unit to the z-meter bench in "Service."
• When opening the software, there is a prompt to insert the floppy disk NOW. This is also noted in step 4 of the calibration procedure document – but there it is called "cal disk" and not floppy. I believe this floppy would have included the two "cal" files called for in step 6: "P071_03.cal" and "P72_10.cal" – thankfully, I have these files as well. I haven't been able to try to include them on a floppy disk however as I don't have any floppies currently!
• There is an error shown in the pictures, related to LabVIEW. I'm not sure what this means. It is possible that even though my LC103 was hooked up via the RS232 port, it wasn't communicating properly. I didn't troubleshoot this.
• I am able to navigate to the two cal files, but I haven't run any of the tests or calibrations, since I'm still trying to figure this out – and I'm still missing essential parts of the calibration – the external "boxes."
So where do I go from here? I'm hoping that some of you can help! I think the biggest obstacles will be finding or reproducing the external "boxes" as I assume they were Sencore's proprietary units: final test box, ringer test box, and ringer cal box. That said –
• Maybe a former Sencore tech can help out here?
• Perhaps some information can be gleemed from the source code?
In any case, with this software, I think we are much closer to having these units be serviceable by their owners -- as it should be in 2020!
Looking forward to your thoughts.
Best Regards