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My hp pavilion f1903 turns on than shutts right off

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  • abbyandant Oct 08, 2009

    i did that it does the same thing the pc im on right now works with the screen it has

  • abbyandant Oct 08, 2009

    My HP pavilion f1903 shuts off right sfter you turn it on screen comes on than goes off power light stays on though.I tried a different pc it does same thing

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2 Answers

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Hi,

1) there are many possibilities why your HP Pavilion monitor shuts right off

a) one possibility is software related , might be on the resolution

or the driver of the monitor.

b) might also be a hardware , an electronic component /circuit failure.


2) here is a link , for initial troubleshooting of your monitor might

help , try these:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01295035&tmp_track_link=ot_faqs/top_issues/en_us/c01295035/loc:2&lc=en&dlc=&cc=us&lang=&product=348756


3) if the initial troubleshooting still don't and still shuts right off

then you might need someone to help you, open the unit

and measure the power supply output voltages on the monitor,

these only applies if the problem is really the monitor.

4) if it is, saying that the computer turns on and presumed finished

booting, and running, using a flashlight pointed sideways you

can faintly see images then the backlight inverter circuits are not

working.

5) there could be still other possibilities but a visual look and

voltage measurement inside the unit can properly diagnose

the circuit problem you are having.

6) inside the unit there are also possibilities some capacitor/s

or some transistor/s have failed.

7) have someone to help you measure voltages inside the unit

to be precise in isolating stages of which the system is failing.

8) in these case, a lot of care and safety is important, be cautious

on the voltages that might still be stored even there is no power

available., you can safely discharge the capacitors with at least

2.2K 5w resistor.


9) there is also a possibility of cold solder joints even when

some electronic parts are found/replaced and still not working.

10) two most possible causes are the psu and the inverter circuits

11) sometimes on the EEPROM too, refer first on step 2


hope i have helped you , thanks for using Fixya!


Posted on Oct 08, 2009

  • 3 more comments 
  • Rommel Cana
    Rommel Cana Oct 08, 2009

    a) have someone to help you open the unit and a visual look is needed.

    b) next would be voltage measurement.

    c) try using flashlight focused sideways if you can see a faint image.


  • Rommel Cana
    Rommel Cana Oct 08, 2009

    if you can see a faint image then inverter circuits failed or your power supply

  • Rommel Cana
    Rommel Cana Oct 08, 2009

    there are indicator lights, please elaborate further the status of the lights

  • Rommel Cana
    Rommel Cana Oct 23, 2009

    these might look like what you have inside the unit





    the one inside the red is a sample of a cold solder joint


  • Rommel Cana
    Rommel Cana Oct 23, 2009

    here is additional guide for you




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Hi,

A possible problem on the video card or into your PC, first try to connect and test the lcd into other unit to test if the lcd ws still Okay..

Let me know

Posted on Oct 08, 2009

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