LCD on my Nikon D7100 is not always working. Like 99% of time not working, then it starts semi-working until it doesn't. I read that there are two options why. It could be because of a faulty LCD or something on the main board (Voltage regulator?).

faulty lcd img

This is what it looks like from the time it was semi-working, but after I disassembled it has never work again.

Connections of ribbon cables were fine. I tried re-attaching them, but no luck. I also applied pressure on multiple spots of LCD/backlight, again no luck.

Is it the LCD or the motherboard?

  • Looks like the LCD. Guess the screen would not work at all if the mainboard was dead but its just a guess.
    – Arjihad
    Nov 23 '21 at 21:13
  • But it sometimes works, so maybe not completely faulty voltage regulator or something. I just don't want to spend money on spare part and then discover that it's not the problem :/
    – A.D.
    Nov 24 '21 at 15:24
  • when does it work? when it's hot after use? To me, that looks like a poor connection. You can get an external monitor made for video to "replace" it without as much risk or effort as a repair would imply.
    – dandavis
    Nov 24 '21 at 21:43
  • @dandavis no pattern for when it works. The camera/LCD is never hot unless left on the sun.. I disassembled it and checked, cleaned them, connected/disconnected multiple times, tried wiggle it.. I don't understand what you mean by the external monitor. Link?
    – A.D.
    Nov 26 '21 at 17:55
  • the camera has HDMI output right? they sell portable little (3-6") HDMI monitors, around $100-$200 on amazon; might be worth it if only the LCD is bad...
    – dandavis
    Nov 27 '21 at 3:28

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