Author Topic: Computer Screen Flashing on/off  (Read 492 times)

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Offline mrrcompTopic starter

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Computer Screen Flashing on/off
« on: October 18, 2023, 02:01:50 am »
HI

I have a samsung Computer Screen. It has autodetect if the signal is analog or digital.It just keeps flashing on and off I can see the computer connecting using either the DVI input or the VGA gives the same situation. The computer signals are fine since i connected other screens without problems.


Suggestions??

Regards
 

Offline p.larner

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Re: Computer Screen Flashing on/off
« Reply #1 on: October 18, 2023, 03:41:07 am »
check the psu caps for esr,presume its a smps type?.
 

Online TERRA Operative

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Re: Computer Screen Flashing on/off
« Reply #2 on: October 18, 2023, 05:35:01 am »
How old is it?

I've fixed many flashing monitors and TV's by replacing the worn out crappy brand low-ESR capacitors on the output of the PSU board with new.

Ripple gets into the processor board and freaks it out until you replace the caps to provide nice clean power again.
Where does all this test equipment keep coming from?!?

https://www.youtube.com/NearFarMedia/
 

Offline p.larner

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Re: Computer Screen Flashing on/off
« Reply #3 on: October 18, 2023, 08:56:23 am »
if ts led/lcd are you sure its not just the backlight going on and off?.
 


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