Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
cancel
Showing results for 
Search instead for 
Did you mean: 
marshmellow
Level 7

roku no signal

hi,

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?
0 Kudos
6 Replies
jeffrok
Level 11

Re: roku no signal

Dumb question.. are you sure the right input is selected in the TV?
Yeah, I got some Rokus.
https://youtu.be/d1CSEeqWl10
0 Kudos
marshmellow
Level 7

Re: roku no signal

"jeffrok" wrote:
Dumb question.. are you sure the right input is selected in the TV?

Yes. It is.....!
0 Kudos
jeffrok
Level 11

Re: roku no signal

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?
Yeah, I got some Rokus.
https://youtu.be/d1CSEeqWl10
0 Kudos
marshmellow
Level 7

Re: roku no signal

"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.
0 Kudos
Basil
Level 10

Re: roku no signal

Here's a Roku 4620 power supply, to verify your substitute power supply against.

Basil
https://www.basilsblog.com/
Roku Ultra (4660)
Apple TV (5th gen), TiVo

Previous:
Roku boxes from every generation.
Apple TV (2nd, 3rd, 4th gen)
0 Kudos
jeffrok
Level 11

Re: roku no signal

My suggestion is to buy the adapter that route makes for the Roku Premiere.. the PW09 on this page:

https://www.roku.com/accessories/adapters

And if you still have problems, come back here.
Yeah, I got some Rokus.
https://youtu.be/d1CSEeqWl10
0 Kudos