The Nikon D90, a beloved DSLR for many photographers, isn't immune to malfunctions. One recurring problem reported by users is the failure of the Live View (LV) button. This seemingly simple button, responsible for activating the camera's Live View mode, can suddenly become unresponsive, leaving photographers frustrated and unable to utilize a key feature. This article will delve into the reasons why your Nikon D90's LV button might be doing nothing, exploring various troubleshooting steps and potential solutions, drawing on experiences shared across online forums and user reports. We'll also examine related issues, such as the camera getting stuck in Live View mode, and discuss how these problems might be interconnected.
Understanding the LV Button's Function:
Before diving into troubleshooting, let's briefly recap the LV button's function. The Live View button on the Nikon D90 activates the camera's Live View mode, allowing you to compose your shots using the LCD screen instead of the optical viewfinder. This mode is particularly useful for macro photography, video recording, and situations where using the optical viewfinder is impractical. When the button fails, it renders this entire functionality useless.
Symptoms of a Faulty LV Button:
The primary symptom is, of course, the LV button's complete unresponsiveness. Pressing it yields no reaction; the camera doesn't switch to Live View mode. This can be accompanied by other issues, depending on the underlying cause:
* Camera Stuck in Live View: In some cases, the camera might get stuck in Live View mode, even after attempting to exit it. This often requires a power cycle (turning the camera off and on again) to resolve, but the underlying problem with the LV button remains.
* Video Recording Issues: Since Live View is essential for video recording on the D90, a faulty LV button will directly impact your ability to start and stop video recording.
* General Malfunction: In more severe cases, the failure of the LV button might be a symptom of a broader internal problem, potentially affecting other buttons or camera functions.
Troubleshooting Steps:
Let's explore various troubleshooting steps to address the unresponsive LV button:
1. The Obvious: Power Cycle and Battery Check: The simplest solution is often the most effective. Turn your D90 off completely, remove the battery, wait for a few seconds, reinsert the battery, and turn the camera back on. A simple power cycle can resolve temporary software glitches. Also, ensure your battery is sufficiently charged. A low battery can cause erratic behavior.
2. Clean the Button: Dust, debris, or sticky residue can interfere with the button's mechanism. Use a can of compressed air to gently blow away any particles around the LV button. Avoid using liquids or abrasive materials.
3. Check for Physical Damage: Examine the LV button carefully for any signs of physical damage, such as cracks, dents, or foreign objects lodged within the button mechanism. If you notice any physical damage, professional repair is likely necessary.
4. Firmware Update: Outdated firmware can sometimes cause unexpected issues. Check Nikon's website for the latest firmware update for your D90 and follow the instructions to update it. Be cautious and follow the instructions precisely to avoid bricking your camera.
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