fluke dsp-2000 and 4x00

[The1]

Looking for any suggestions as to why, after years of sterling service my Fluke DSP-4000 main unit suddenly just displays some horizontal bands when powered on...it was pworking perfectly when turned off the day before!

I have multiple 4100 units like this, i have checked the whole board and seems nothing wrong. I pulled both U17 & U18 AT29LV040A off the board and read in programmer but both modules are dead, i have new ones but unsure of how the flash should be done, the remote unit firmware is less than 4mbit so i have flashed onto both chips and replaced but remote unit still not booting.

The address lines of the 4mbit eeproms goto the MC68307V so it's likely i guess that the firmware is motorola assembly.

[hcmsun]

I have a DSP-4300 not booting, The U17 is damaged. Can anyone read the this chip?

[Ned70]

Hi Asis,
I’ve just been searching through form posts looking for firmware and standards files for my DSP-4300.  I know considerable time has passed, but do you still have 1.925 and do you have the Standard 5.17 file?  I look forward to hearing from you.

[asis]

Hi,

I'm already retired and don't work with these TDRs, but there are some files in the archives on the old PC.
Tell me what you need and give me a link to a file hosting service to which I will try to upload.

[The1]

Thanks for taking the time to post, we already have those files, what we need is a read of the internal eeproms from a working unit. To restore the bootloader.

[Swap007]

It is someone who can give me a firmware or database with some instructions for DSP-4300? I bought another remote for the main, but he arrived with 5.17 standards and older firmware, I found the firmware but database standards it remain at 5.17 and I must have 5.19c.
Or is good to downgrade the standard on main unit from 5.19c to 5.17? With another firmware write to main unit?

[asis]

.. see PM

[RobertD]

Hi,

same problem here. 4100 and flickerig screen on bootup. seems like U17 & U18. Does anybode have files in the meantime and managed to program them?

[AmishThunder]

Just signed up for EEVBlog Forum so I could say THANK YOU for posting that all over on your Google Drive, pete1zed!

I have a few DSP-100s that had mis-matched firmwares, and so they wouldn't work together. Although you don't have the -100 FW posted, you pointed me in the right direction with the wayback links.

Now some extra info for those struggling with LinkWare 6.2, and the info is probably useful to those that have a DSP-2000:

-Yes, LinkWare 6.2 installs and runs fine on Windows 11.
-Yes, Using a USB to Serial adaptor works fine (as long as it's in a null modem configuration, and correct drivers are installed on Win11).

For my first attempt at upgrading the firmware of the DSP-100, it appeared to be successful, but the DSP-100 wouldn't start up. It just made one beep, then the screen stayed blank. I thought I'd bricked it, but luckily Fluke made it so that even in that state I could just initiate another firmware update from LinkWare. The unit being upgraded must be in the Auto Test position, and even though the screen is blank, it's actually on and ready to accept firmware.

After firmware updates, you will need to do a self-calibration, and that WILL require either another DSP (with display) or a Smart Remote (no display)...Both the DSP and SR must have the same firmware. FYI, the update process for the remote is the same as the DSP: Turn on, connect serial, initiate an update, but instead choose the file beginning with "SR".

Hope the above helps someone, and thanks again pete1zed for your posts and files. I've had this DSP-100 since 1999, and although it isn't useful for qualifying any modern ethernet standard, it still is useful in many other ways. Glad it's a part of my kit!

[CM]

The internal battery on my DSP-4100 is dead.  Does anyone know the part number for a "drop-in" (solder in) replacement, or where I can get a CR2450 with the same pin configuration?