Electronics > Repair

Tektronix MDO4104-6 Front Panel Microcontroller Failure

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joebot5:
interestingly enough, my scope does boot up all the way after about 1min 30sec. i do have the power supply forced on through the remote on jumper on the power supply. i can get to the screen where it says the scope hasn't been compensated. this screen showed up after i used the "forceinstall.txt" method to force an install of an earlier version of the firmware, thinking that maybe an earlier version could install to the micro but that didn't work. thanks everyone for your thoughts and options!

joebot5:
i just got off the phone with Norway Labs and the price they quoted is almost the cost that tektronix quoted for their repair efforts, a bit under nevertheless. i might just try going back to the drawing board on this one unless i can justify the expense. thanks everyone!

feedback.loop:

--- Quote from: mikehank on May 13, 2022, 03:12:01 pm ---Hello,

The front panel controller is not copy protected.  I have burned images into this processor and fixed front panels many times.  Without the front panel working correctly the boot sequence will hang.  The micro controller is on the I2C bus and when not happy the bus hangs.

--- End quote ---

Could you share the image please?

joebot5:
hi mikehank - does the image have to specifically be from an mdo4104-6 or can a similar model work? just trying to keep options open if possible since mdo4104-6 models that are used are still fairly expensive, at least to me  :)

mikehank:
Hello joebot5,

Any MDO4K will work.  A MSO/DPO will not work due to the keypad functionality.  Also MDO4KB, or MSO4KC will not work.   I would send you the program image but I don't have one.

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