Also, go unlock options if you have a GPIB-USB adapter!
I don't know what I can do via GPIB on this particular model scope ?
And I don't have a GPIB-USB adapter ! ... I have a REAL National Instrument ISA interface card and the MS-DOS and Windows 95 S/W to go with it !
I set up an old IBM Aptiva Pentium computer solely to be able to use a PCI or ISA NI card.
Used it 5 years ago when I bought my TDS544A and wanted to clear the error log using a little S/W someone in the TekScope forum wrote.
Worked well. Then I had a bit of GPIB fun, see below !
What a bobby dazzler!
If you can send arbitary commands to the scope via GPIB with your setup, you are set for unlocking options.
Follow these instructions:
http://www.ko4bb.com/getsimple/index.php?id=enable-tds754d-optionsYou'll be able to enable options 1M, 2F, and 2C with no additional hardware. You have a floppy so option 1F is already enabled, I think 2F is enabled as standard on your unit?, and if you have the serial/parallel output board installed, you'll already have option 13 enabled too.
You can try option 2M, but it will only work if you have the extra RAM actually installed in your machine, that depends on model and serial number revision. You can try it and see if it shows 2M on the boot screen, if not, just revert it back and leave it at the 1M option.
2C might or might not work, I'm not sure on the 500 series scopes. I have all 600 and 700 series at the moment.
Option 05 requires the TV trigger board to be installed, and options 3C and 4C require the optical converter adapters etc. Not really useful unless you are doing optic fiber stuff anyway.
Also, take a look inside to see if you are lucky enough to have the hard drive option, and if you do, SELL IT TO MEEEEEEE!!!
I also have a spare serial/parallel board if you need it.