Question about Nikon Coolpix SQ Digital Camera

1 Answer

Nikon Coolpix SQ

All the functions on camera works, but the lcd is off...
Any ideas?

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  • 13 more comments 
  • nightshade61 Apr 30, 2008


    No i not get any menus at all.

    The lcd is off, backlight off.

    All other functions are 100% ok. All ready opened the camera and all the connections are ok. But the lcd doesn´t work at all.

    I have read the service manual and find out that is a fuse that control the backlight, dont know if thats the cause.

    If you can help .... i like very, very much this camera


  • nightshade61 Apr 30, 2008

    can you be more precise?

    there is a fuse for the back light in power board the fuse is f5.

    that fuse you say i dont now. can you give me a more precise ideia, or send a email with the location?

  • nightshade61 Apr 30, 2008

    i have the service manual. the f5 is on the power pcb. i think you say that the fuse that talk about where in the main board near to the connector CN500, that is the LCD connection on main board.

    i will try to by pass f5 when i arrive home.

    i´ll be back to post the results by the seven o´clock.

    i hope you can track this post with me so that togheter we can fix it.

  • nightshade61 Apr 30, 2008

    sorry the fuse of tft backlight (18v) is not F5 is F4...

    i have just take a better look to service manual..

  • nightshade61 Apr 30, 2008


    back again

    F4 missing. There´s a C on here should be the fuse

    F5 is there but i dont know if that is the right fuse.

    Any ideias?

    Do you all ready open one of this cameras?

  • nightshade61 Apr 30, 2008

    the fuse you talk is on the power board right?

    Do you have the service manual?

    Can you give more detail to find anything?

    I made a test when i came home, and connected to tv and it´s all ok. only the lcd don´t start. and i can´t find the fuse.

    F5 on the manual said that is for power supply from de cool station...

  • nightshade61 Apr 30, 2008


    i try here of find something to.

  • nightshade61 Apr 30, 2008

    i have tried to reassemble the camera again in order to see if anything works and the problem is the same...

    everything works but no lcd...


  • nightshade61 Apr 30, 2008


    another lcd from another camera nikon it flicks but continues to shown no image

    and the lcd from coolpix sq in another camera flicks and starts but i can´t fire up backlight so o can´t see no image but it flicks on another camera.

    do you know the power of this lcd backlight?

  • nightshade61 Apr 30, 2008

    i´m prety sure that is a power issue but i don´t know from were.

    can´t find the fuse....

    F1, F3, F5 are green

    F4 missing or a black smd piece with a C, and it says C42.


  • nightshade61 Apr 30, 2008

    backlight connect to 12v it lights it self....

    lcd connect to other board flicks...

    power issue.....

    help.... done all the possible tests

  • nightshade61 Apr 30, 2008

    i can´t they are diferent achines and lcds

    one is a nikon coolpix 990 and the other the square

    can´t do it.

    i´m going back to the f4 fuse and try to bypass it.

    i will be bck in a moment....


  • nightshade61 May 01, 2008

    nop. it as not the fuse....

    i byepass the fuse and is the same thing lcd dont work.

    out if ideas.............................

  • nightshade61 May 05, 2008

    hi, again....

    LCD still not working, not sure but think the power of the backlight is off. Anyone have this problem, and know how to solved?

    thanks, again...

  • Mike Johnson
    Mike Johnson May 11, 2010

    do you get any menu listings when you push the menu button. also what model is it.



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  • 477 Answers

There is a fuse close to where you back light is plugged in look for ic info of fu to see if it is the problem by pass the fu fuse and if it is it it will came on.

Posted on Apr 30, 2008

  • 5 more comments 
  • Mike Johnson
    Mike Johnson Apr 30, 2008

    have you found f5 ??? if so jump the two connectors with a wire and see if the back light comes on.

  • Mike Johnson
    Mike Johnson Apr 30, 2008

    I am always on and glad to help

  • Mike Johnson
    Mike Johnson Apr 30, 2008

    yes I have I just donot have one in stock to look at right now.

  • Mike Johnson
    Mike Johnson Apr 30, 2008

    I will see if I can locate something

  • Mike Johnson
    Mike Johnson Apr 30, 2008

    Have you tried a new back light or LCD from a used camera?

  • Mike Johnson
    Mike Johnson Apr 30, 2008

    swap out the black light they are very small solder joints. But that should fix it the lcd and backlight seporate.

  • Mike Johnson
    Mike Johnson Apr 30, 2008

    the lcd between the two will now work you need the exact Nikon make each on preparatory to each camera I had the same problem they look like it would work but they are diffrent.



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