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| Siglent SDS1104X-E noisy fan replacement |
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| Neutrion:
Hi AdiGital! Do I see it right that the Rubycon caps are gone in the power supply? When was your scope built? What kind of caps do you have? When I measured the FPGA heatsink with the original cooling in a closed house, the FPGA temp was much higher than that (Don't remember right but around 50-60 degree Celsius) and the ADC also around 60. Are you sure that you attached the probes right? I measured it with a BM789 with original probes, and didn't even stick it to the metal correctly. Would be an interesting experiment to see whether the ADC would might be less noisier with a heatsink and much lower temp. Did you try to not to destroy the warranty sticker? |
| ceut:
--- Quote from: tautech --- --- End quote --- Hello ! Thanks to @tautech, I have bought a brand new Siglent SDS1104X-E but super noisy fan :-[ I use it at home for hobby, I live in a small apartement without any garage or lab, so this one is really annoying me :-\ He gaves me the link to this topic, so I have just tearing down my DSO to lower the fan voltage which seems to be the only solution available. Here are some photos of the beginning of the teardown. >I use my (great and beautiful 8) ) Xiaomi Soccas hairdryer to remove the sticker :-+ >Then doing some maths to get the 9V power with my Siglent silent ;) PSU Now thinking about which solution I will use inside it, without doing any irreversible mods for the 3-years warranty. So I will post my thought later.... |
| tautech:
At just 57mA fan draw use a LM7809 or LM78L09. Best to KISS. ;) |
| Muttley Snickers:
--- Quote from: ceut on March 18, 2022, 09:05:51 pm ---Thanks to @tautech, I have bought a brand new Siglent SDS1104X-E but super noisy fan :-[ --- End quote --- :palm: |
| ceut:
--- Quote from: Muttley Snickers on March 18, 2022, 09:53:44 pm --- --- Quote from: ceut on March 18, 2022, 09:05:51 pm ---Thanks to @tautech, I have bought a brand new Siglent SDS1104X-E but super noisy fan :-[ --- End quote --- :palm: --- End quote --- I was saying Thanks for Tautech to helping me to choose between Rigol anns Siglent models, and give me this topic link ;) Not for the noisy fan: that was a big (and bad) surprise when I switched it on yesterday for the first time ... |
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