I currently have a Roku premiere. I lost my power adapter 2 months ago, so I decided to buy a new one recently. I plugged it in and the Roku box light turns on, but it says ''no signal' on the tv. I tried plugging it into another tv, but it still doesn't work. I tried a different HDMI cable, it still does the same thing. I also tried another power adapter, it Also does not work. It's weird how the light turns on but there is no signal. Is my Roku box defective?
"jeffrok" wrote: Ok, the only thing I can think of is that you replaced the original power supply with the wrong one. What's your exact Roku model, and where did you buy the power supply from?
Model: 4620X Roku Premiere I tried different power supplies that is 12V and 2000 Am. I tried using another Roku power supply that is also 12 V and I also tried using a universal power supply. I bought the power supply from a computer/tech company.