ဤထိန်းချုပ်မှုကို ပြင်ဆင်ခြင်းဖြင့် ဤစာမျက်နှာကို အလိုအလျောက် အပ်ဒိတ်လုပ်ပေးပါမည်
![](https://help.apple.com/assets/5A54041A094622594D4CE0F7/5A54041B094622594D4CE0FE/en_US/f0939392115581612d02fa1484e7315b.png)
If a MIDI device is dimmed
The device may be disconnected or turned off. Make sure the device is turned on, then try reconnecting it to your Mac.
If a MIDI device is disconnected or turned off, the “Device is online” checkbox is deselected in the device’s Properties window. (The Properties window appears when you double-click a device icon in the MIDI Studio window.)