Electronics > Repair
Tektronix DPO 4104 kernel panic
<< < (4/10) > >>
aibi1590:
Hey I got one mso2012 and a white screen appears.
I watch the ubootlog and stop at DRAM:64MB
I infer that the flash is faulty.
adrianh:
That looks basically identical to pcwrangler's failure. I'm curious how his DRAM experiment will turn out...
aibi1590:

--- Quote from: adrianh on October 07, 2021, 10:04:12 pm ---That looks basically identical to pcwrangler's failure. I'm curious how his DRAM experiment will turn out...

--- End quote ---
Yes, but I don't know if it is DRAM or flash failure.
The four DRAMs on my MSO2012 are not the same.
And I don’t think I can buy a new flash and pre-burn the firmware into it.
pcwrangler:
SUCCESS! I replaced the DRAM and it came right up. I can't thank Adrian enough for the support on this. Although only 2 confirmed cases is anecdotal so far, Adrian might be right; these scopes could have faulty DRAM. I hope more people see this thread.

aibi1590, your bootlog stops almost exactly where mine did. Even though your version is 2000 series, I would still bet the RAM is bad. Give it a try, the cost is minimal.


Now...... where did I put all those screws?!
pcwrangler:
For the record: The bad ram was the bottom one on the back side (opposite of CPU) of the board.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod