Question about HP w1907 LCD Monitor

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I have an HP vs17e flat sceen monitor that will not power up. Checked the power supply cord and it is fine, just acts like it is not getting power ????

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I'm working on exactly this board right now, same problem. Two of the capacitors (c822 and c824, right at the top edge center of the board) are bulged and blown, causing my power-fail situation. They're available for about thirty cents a capacitor from any specialty electronic place. Piece of cake to solder in with the right tools and a bit of care. Hope it might be another clue to your problem. Good luck.

Posted on Dec 04, 2009

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COULD BE BAD CAPACITORS, MINE HAD NO POWER,WHEN I TRIED TO BOOT IT FROM THE POWER BUTTON. OPENED IT UP AND IT WAS THE CAPACITORS THEY WERE NOT FLAT THEY WERE SWELLED UP. REPLACED NEW ONES AND IT WORKED FINE .

Posted on Mar 17, 2010

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HI,

ITS PROBLEM WITH URS LCD SMPS (SWITCH MODE POWER SUPPLY)

IF U R FAMILIAR WITH ELECTRONICS CHECH AC INPUT WHICH IS GOING TO LCD SMPS,IF IT IS OK CHECK SMPS DC OUT,IT SHOULD BE 12 VOLTS DC WHICH IS SUPLLY TO LCD INVERTER,
WHEN VOLTAGE IS PERFECT THEN ONLY THE LCD LIGHTS UP....

TNKS

RABBANEES

Posted on Nov 12, 2009

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Posted on Jan 02, 2017

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1 Answer

Why is my HP vs17e monitor blue power light blinking?


the blinking of power led means that the power supply is not working fine, this can be caused by:
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to solve the problem, unplug the LCD from the power source, wait for 30 mn to discharge the main filter capacitor (150 uf, 400 V), look at the capacitors, if they looks good, check the transitors, if you find a shorted one (0 ohm read) change it. don't forget to test the continuity of the flyback transformer (primery and secondery). i hope that this will help you to solve the problem.

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Have 10 Broken monitors with simalar problems. 1. Dell e153FPB- Video for 2 seconds than screen goes blank. 2. Dell e153FPB- After 20 mins, Display stops working. 3.Dell e1724FPB-Video for 2 Seconds than...


Pleasec look through my albums so you will know what to look for.

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

Dell bd: http://www.lcdrepair.us

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Hello

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