20 Most Recent Hisense 55 2160p LED Ultra HDTV Class 4K Smart TV WiFi Television 55T880UW - Page 8 Questions & Answers

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. https://elektrotricks.blogspot.com/ http://electronicshelponline.blogspot.com/ Type in the brand name of your device [exclude the model number] at the search box at the right column to get gathered related posts.

Are you able to get some voltage measurements?

It is likely asking for your router wifi password.

If it is faulty, probably not.

First make sure that you have the antenna connected to the RF jack. Go to the Home screen of the TV and select the Antenna TV tile on the right hand side of the screen. (If you acquired the TV from a previous owner, they could have hidden this tile. See the steps preceded by Otherwise.) If this is the first time you scanned for channels, just follow the onscreen prompts (including setting your time zone). Otherwise, go to Settings (below Home in the left column on the home screen) > TV Inputs > Antenna TV > Scan again for Channels > Start finding channels. Use the arrow keys to navigate the menus/tiles and press OK to enter. To save, make sure to select Done and press OK. The manual for the Hisense Roku TV (2019), 32HF4030F is available here: https://www.hisense-usa.com/support/models/32H4030F_hd-hisense-roku-tv-2019 . The current link to the manual is https://assets.hisense-usa.com/assets/ProductDownloads/88/c8c9a74079/Roku-User-Manual.pdf . The section for setting up TV channels starts on page 39 of the manual. See the section starting on page 10 for information on using the remote or TV front panel buttons in the menu. I hope this helps. Cindy Wells

It's not a hardware issue, you have bad LED backlights...VERY common failure on this and most model TV's

Why did you replace the power board for an overheating or fault protection issue? The "let's try changing this part" system of repair never works. Diagnose with all your test equipment, consult with service specs, speak to the manufacturer in China, and replace the one part that needs replacing. Hopefully our Expert Larry will be along shortly. https://www.fixya.com/support/r29790007-repairing_own_television ..

Most likely neither, on the majority of Hisense sets it has been bad LED backlights

Chances are your LED backlights are defective

The blue strips stop the LEDs from making contact with the metal chassis. The whole process is shown here. https://www.shopjimmy.com/hisense-hd500df-b53-replacement-led-backlight-strips-11-50h5gb-50h4c-50h5c/ https://www.google.com/search?q=backlight+for+my+Hisense+50H5C ..

Walmart and Target and Amazon and Kmart and whichever TV provider that you guys are using would have cables for your TV then.

Your LED backlights are bad and need replacing, it's something you can do yourself but look at some youtube vids before attempting to do it, the panel is extremely fragile on this model set, be careful handling it or it will break then the TV is junk and the money spent on lamp strips is waisted. Also match the old strips to the pictures of new ones as this model uses 2 styles of strips, best place to buy them is shopjimmy.com

This model had a lot of backlight issues with the lamp strips being bad, order a new set and install them and it will work again, but be careful handling the panel, it's VERY fragile

The main board and the power supply is bad for your TV and it would be more easier to buy a new TV than to try and fix the current TV that you have and that our TV could of had died on you.

What code

Screens aren't available

It sounds like something is wrong with the TV and it's under warranty, return it to where you bought it for a replacement

White screen, that's kind of unusual, try unhooking both the ribbon connectors going to the panel and see if you get a blue glow from the panel

Try removing the battery in the remote. If it stops happening, you need to buy a new remote. If it not, the control electronics is messing up.

You may not have the correct remote for that TV. There is no 'connecting' involved. Either it immediately operates the TV or it's a similar unit that will only operate minor things like on & off. Sometimes not even the volume! Get the right one by for your TV by using the model number of the TV and get it on eBay or Amazon.