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Old 01-25-2019, 12:43 AM   #21
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Join Date: Jan 2019
City & State: richmond
My Country: canada
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Default Re: Dell U2413 turning off

Hi djatila666,

I just bought a refurbished unit of this monitor and have the same problem. I'm glad I found your post and this forum. Is your monitor still stable now more than 2 months after your last post?

If so, I'm tempted to try the same fix (versus returning my unit to the dealer and dealing with shipping etc).

What was the process involved in applying new thermal paste to K15A60U? Is there a recommended method to remove the heatsink (is there any best practice I should be aware of)?

And is adding the radiator to LD7904jgp7 as straightforward as it sounds? I can look up how to do this, I assume also with some application of thermal paste etc.

Thanks in advance for any help and for your contribution to this thread!
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Old 02-01-2019, 04:58 PM   #22
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Default Re: Dell U2413 turning off

Hi misteeka
My monitor is working good. Look the image.
That is my repair.
Attached Images
File Type: jpg Dell.jpg (133.3 KB, 45 views)
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Old 06-12-2019, 10:39 PM   #23
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Default Re: Dell U2413 turning off

I got the same problem.

- Standby power (5V) still on
- PS1 (24V): 0V

Already replaced some following components: 03 schottky diodes (SRF 30-10) + 1 opto coupler at Main Switched PS; IC LD7904JGPN; MOSFET K15A60D at FPC area; 02 MOSFETs K10A60D closely to the main transformer. Nothing changes.

When used a laptop CPU cooling fan and directed the air flow to the main switched PS area, the screen turned on in 3 seconds.

I used a meter to check the value of components around the PFC and main switched PS areas. All components seem to be still in good condition.

Thanks for any help
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Old 07-17-2019, 06:54 PM   #24
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Default Re: Dell U2413 turning off

check the capacitor if theres a leakage
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