This device is a large part of my evening life and i just want to establish if it is permanently broken. Does this blinking pattern mean a hardware fault or something like that. I am struggling to find any resources online that describe this exact problem. Please can you guys assist me. What is your internet connection setup? Usually, one can unplug the Roku, the modem, the router, and sometimes a computer and then wait 20 seconds and plug all back in and see if the Roku can find the internet. I have always used a wireless connection so I am not familiar with setting up the Roku with an ethernet connection.
What model Roku do you have? How was everything connected when the Roku was working? Internet, TV, Roku? Did you originally hook everything up when it was working?
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If so, outline the hookup for us from your internet connection to the Roku to the TV. The white light blinking is normal when the Roku is not connected to a live internet connection. I am going thru the exact same thing. I have no picture or sound. Yes, tried several televisions, HDMI cables. I have done factory reset paper clip holding in the reset button for 30 seconds and plugged directly into modem.
Starts out with solid white light, then single flash then ultimately double flashing. No picture at all. Still nothing though. Still the same double blinking light. No video coming through. My symptoms are exactly the same as the guy above me. Starts out solid. Then single flashing. Then double flashing.
Someone suggested that it was a power problem so i replaced the ac converter. Still nothing. Also tried with a working ethernet cable plugged in before someone suggests that. What else can i do here. Should i send it in to see if they can repair it. What would be my next course of action. I see the warranty claim is only for 30 days so thats that out the window. I kind of only had it for a couple of months before it it was tragically taken from me. Its a Roku 3 by the way. Any advice would be appreciated. Opening up the TV was complicated and takes care and time.
You can break the LCD, which makes it worthless. To get much from the manual, or maybe I was hoping for something different. I was looking for how to disassemble it, though in truth I had done it already. But if you understand all the circuit stuff, it "may" be useful for diagnosing components. A few things did point to the power board. The truth is I got more from watching YouTube videos.
Tampatec had some good videos--he's personable. I subscribed to a few others but he was the best. The PCBs printed circuit boards most of the time have the voltages to the pins.
LG SmartTV [LG42LN570V] Red stand by light blinks 3 times!
You have to do that plugged in. The two V 68uF capacitors really looked like the problem, but it didn't work. Okay, I put the board in, it didn't work. I don't know if the board is bad too. It tests with less voltage than my old one did. On my old board, I get no standby voltage and It is always hard to tell what to try to fix. So far it looks like a mistake to have tried. I wonder if For example, I think you wrote a 42 or 43 inch set.
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I have the Holy Grail. Now to repair. TV repair often involves the tech going out to the home to look at and assess if it's just a setting or a dead set then it's brought back to the shop for a better tech to diagnose, estimate and follow up with the owner. I'm not talking about in warranty situations.
So that's about USD here and the set is not fixed yet. Halfway to a new set. And that is largely due to globalization, that most of our televisions are made in third-world countries with wage-slave labor. But if you take to an American repair shop, well, they need to actually make a living in our economy. I've got to hit the PO and send back a power board. Honestly, I'm not sure the new one works either. The worst thing is if you replace all PCB's, it costs more than a new television. And to be honest, I'm not so sure that board sold as new wasn't refurbished.
What we need is a way to pack it up, send it to China, let THEM fix it with their cheap labor, then send it back. I didn't know it at the time. I've looked at and read most of the videos, and they suggest LED strips or power supplies, and my LED strips worked, and I just tried a power board, and it did not work either. I'm wondering if a strip can be fine and still problematic. Discussion is locked. Follow Follow this discussion and email me when there are updates Stop following this discussion. Please remember to be considerate of other members.
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Sounds like hardware. Here's LG Support. Time to try that.
I've yet to find a 6 hour wait help but hey, worth the try. Why ask here? NT mine went black the same day too! Did you resolved? What was the problem? Thank you very much Angelo. Brand new LG red light flashes 3 times then goes off. I had the same problem after a lightning.
It needs repair work done. Need a bit of help. Its Not the Power Supply Trust me. It not the power supply, I tried. Its the main board. That worked. Fix it. LG 42LN Same problem. Blinks 3 times no screen power. NT EL problema son los led, no hay mas. Same fault in 32lf Red light. Are you sure it's not the LED strips? Also, you did post in this thread about the 42LNV so if yours is some other model this and above may not apply.
I've read this. Good find. I really wish the service manuals were more accessible. Either I was too dumb. Encompass Board. The problem is the cost of new vs repair.