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Old 04-30-2020, 07:07 PM   #4
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Default Re: DELL U2311Hb (E162032 Vol 3) Goes Black After 2 Seconds

Could be anything, from bad solder joints, bad capacitors, transformer going bad, bad connection somewhere...
You can’t check the health of a capacitor, by charging it up with your DMM in ohms mode and watch it climb. Only because they “look” good, doesn’t mean that they are good either. If you want to check caps you have to invest into an LCR or ESR meter.
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