| Electronics > Repair |
| Tektronix DPO 4104 kernel panic |
| << < (3/10) > >> |
| pcwrangler:
That makes sense and is at least worth a try. I ordered the last 3 Digikey had in stock. Wish me luck. |
| adrianh:
Good luck! And if you need one or two extra DRAMS, drop me a PM. FWIW, I used air to get the old chips off the board (and lead-free takes some HOT air), cleaned the pads, and then drag soldered with lots of flux. I put kapton tape on all the little guys nearby and I didn't lose anyone! :phew: |
| pcwrangler:
I appreciate the offer and will definitely let you know. That's the same technique I usually do with one additional step; I add leaded solder to the leads to lower the temp required to remove the chips with hot air. That way I don't stress the board and hopefully don't kill the chips just in case they are still good. Still, a little stressful working on a valuable piece of equipment. I'll let you know how it goes. |
| pcwrangler:
Update: I just replaced both DRAM chips on the CPU side and it behaves the same exact way. I supposed that is good news that I didn't make it worse but it's still non-op. I hesitate to continue after seeing no progress. What do you think? |
| adrianh:
Well… I think you should keep going. The stack would be in high mem so maybe the other side of the board(?). And to motivate you I’ll donate two drams to the cause. PM me. |
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