Products > Test Equipment
Siglent SPD3303X(-E) calibration FW1.01.01.02.07R2 - best practice
orzel:
--- Quote from: BreakingOhmsLaw on April 19, 2024, 02:37:45 pm ---Hardware version 3.0 has that rectifier bug.
If it's still under warranty, revert to old FW and have it repaired.
--- End quote ---
Mine is version 3.0 as well, but i never had any problem.
Do you happen to know where we can have more information about this 'rectifier bug' ? Is that something easy to fix by ourselves ?
rolfdegen:
The bug does not occur in the old firmware 1.01.01.02.05. The voltage and current are very stable. Fan speed is normal.
Video Siglent SPD3303X, hot bridge, hot regulators, modification for long life time
https://youtu.be/nvGxl44cNno
Hardware hotspot: https://youtu.be/mdOauVzY9OU?t=1651
I think the best way is a small fan for chip cooling ::)
tautech:
--- Quote from: orzel on April 19, 2024, 02:53:49 pm ---
--- Quote from: BreakingOhmsLaw on April 19, 2024, 02:37:45 pm ---Hardware version 3.0 has that rectifier bug.
If it's still under warranty, revert to old FW and have it repaired.
--- End quote ---
Mine is version 3.0 as well, but i never had any problem.
Do you happen to know where we can have more information about this 'rectifier bug' ? Is that something easy to fix by ourselves ?
--- End quote ---
Easy fix for any capable hobbyist...although the soldering might be challenging for those not experienced in lead free solder rework.
This will provide guidance on the rectifier bridge failures and fixes:
https://www.eevblog.com/forum/repair/siglent-spd3303x-e-reboot-problem/
orzel:
--- Quote from: tautech on April 19, 2024, 08:30:36 pm ---Easy fix for any capable hobbyist...although the soldering might be challenging for those not experienced in lead free solder rework.
This will provide guidance on the rectifier bridge failures and fixes:
https://www.eevblog.com/forum/repair/siglent-spd3303x-e-reboot-problem/
--- End quote ---
Ah, indeed, doesn't seem difficult. I might even have a working version despite "3.0" being mentionned in the the about window.
I'm not a real "dave's fan", i haven't opened it yet :-[
I haven't even hacked it, i don't have the need for added precision, and it worked so well so far... "if it ain't broken, don't fix it"
tautech:
--- Quote from: orzel on April 19, 2024, 09:20:47 pm ---I haven't even hacked it, i don't have the need for added precision, and it worked so well so far... "if it ain't broken, don't fix it"
--- End quote ---
100%
AFAIK Siglent got a bad batch of those tiny 2A circular bridges and then we started having the odd failure so they they changed the PCB layout to accommodate a more robust bridge, 4A IIRC.
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