JustAnswer
justanswer.com › tv-repair › fqmhc-vizio-smart-tv-model-d40f-g9-won-t-turn.html
Troubleshooting Vizio D40f-G9 TV: Won't Turn On and Other Common Issues
D40f-G9 often shows faint power light and fails to fully power on or randomly shuts off. A fading power light on the Vizio D40f-G9 usually indicates a failing power supply board or capacitor issues. Continuous 24/7 use can cause component wear.
Reddit
reddit.com › r/vizio_official › black screen (model d40f-g9)
r/VIZIO_Official on Reddit: Black Screen (Model D40f-G9)
February 23, 2021 -
(Problem Fixed, Solution in replies)
Bought this Vizio TV last Christmas for a family member just to find out that it didn't leave the box. I took it back and unboxed it fairly quickly.
Here's where the problems lie, after booting it up and going through the setup process my TV said that it would reboot shortly. OK. I went to eat for 20 minutes before coming back to a blank screen (Turned on of course).
I looked up a few troubleshooting guides but nothing helped (not even holding the Volume - and Input buttons for 10 seconds, though it did pill up a visible prompt). I'm quite annoyed by this and this Vizio will most likely be my last as even my Sylvania TV from 8~10 years ago still works just fine.
Can anybody give me any tips to fix this flimsy thing, I have the D40f-G9 model?
Videos
How to Reset Vizio TV | Factory Reset / Hard Reset / Restart (2 ...
08:15
Vizio TV Won't Turn On | Proven Fix - YouTube
05:00
Vizio TV Won't Turn On But Power Light Fades Off? QUICK Fixes! ...
01:42
How To Fix a Vizio TV that Won’t Turn On - YouTube
15:35
Vizio TV HAS Sound But NO Picture | Black Screen WITH Sound | 10-Min ...
JustAnswer
justanswer.com › tv-repair › eqbmf-model-d40f-g9-working-great-sudden-can-t.html
Vizio D40f-G9 Problems & Solutions | Expert Q&A
If the D40f-G9 won’t turn on and shows no lights, first check the power cord and outlet. A tiny flashing light indicates standby mode or power supply issues. Try unplugging the device for several minutes to reset internal capacitors.
SoundPEATS
manua.ls › home › televisions › vizio › d40f-g9
User manual VIZIO D40F-G9 (English - 55 pages)
Why is my TV, when I wanted to restart it, stuck continuously turning on and off at the logo and I can't do anything or make any changes to it? View photoThis message has been automatically translated ... If your VIZIO D40F-G9 television turns on and off continuously on the logo and you can't do anything or move anything on it, you can try the following steps: 1.
JustAnswer
justanswer.com › tv-repair › pljhn-won-t-turn-black-screen-power-light-blinks-vizio-d40f-g9.html
Won’t turn on black screen power light blinks Vizio D40f-G9 TV, white, a few days was working fine then quit, chat
A blinking power light on the D40f-G9 usually indicates a power supply or main board issue. First, unplug the TV for 5 minutes to reset internal components. Check the power cord and outlet for faults.
Badcaps
badcaps.net › forum › troubleshooting-hardware-devices-and-electronics-theory › troubleshooting-tvs-and-video-sources › 82336-vizio-d40fg9-no-power-standby
Vizio D40FG9 - No power/standby - Badcaps
Hi, I'm working on Vizio D40F-G9 tv, there is no voltage present on the secondary side of SMPS. Fuse was blown out and found two diodes on the bridge were shorted. So I replaced it with bridge as I was not having replacement diodes. Then found the mosfet QB101 is shorted.
Amazon
amazon.com › Television-Repair-D40F-G9-Supply-Cables › dp › B0BYTRQM9X
Amazon.com: Lutema Television Repair Kit for Vizio D40F-G9 with TV Main Board + Power Supply + TCon + Cables : Electronics
In some cases, the same main board may be programmed to control a different LCD Panel Number (Open Cell) and again, it's critical you match Make + Model + Open Cell/LCD Panel Number of the TV.
Reddit
reddit.com › r/vizio_official › d40f-g9 power light comes on, fades. replaced main board. same.
r/VIZIO_Official on Reddit: D40F-G9 power light comes on, fades. Replaced main board. Same.
April 6, 2024 -
I know it's an older model, but it was free and I would like to keep it out of the landfill.
Power on with physical switch or remote lights power LED, which fades seconds later. No image on screen.
Replaced main board with supposedly tested good pull, no change. Interior is clean, no dust even.
I am wondering if it's failing some handshake with the LED driver. If someone's update bricked it, is there anyway to hard reset physically? Are the pinouts on the unused DIAG connector of any use with a meter, or are there any contact points to measure across on the board?
It's just an annoying puzzle now!
Top answer 1 of 2
1
Hello. Please visit this link for power troubleshooting: https://support.vizio.com/s/article/TV-Powers-Off-On-Its-Own-Randomly?language=en_US
2 of 2
1
Been using mine for 4 years. Today it died and it's doing the same exact thing. I just ordered a PN43-751-24U 4k for 130 but I'd like to fix this one as a second tv
ShopJimmy
shopjimmy.com › home › brands › vizio › d40f-g9 › vizio main board / power supply for d40f-g9 (linixtau / linixtav / linixtbv serial)
Vizio Main Board / Power Supply for D40F-G9 (LINIXTAU / LINIXTAV / LINIXTBV Serial)
Vizio Main Board / Power Supply for D40F-G9 (LINIXTAU / LINIXTAV / LINIXTBV Serial)
Compatible with TVs with serial number beginning with LINIXTAU, LINIXTAV, LINIXTCV, or LINIXTBV. Board sticker numbers may vary. Vizio Main Board / Power Supply for D40F-G9 (LINIXTAU / LINIXTAV / LINIXTBV Serial) Known ModelsBrandModelsVersionsVizioD40F-G9LINIXTAU, LINIXTAV, LINIXTBV, LINIXTCV, LIAIXTEW, LINIXTEW, LINIXTDV, LINIXTDW, LIAIXTDW, LINIXTKW, , LINIXTLW
Price US$30.39
Reddit
reddit.com › r/vizio_official › d40f-g9 that goes to black screen after short time
r/VIZIO_Official on Reddit: D40f-g9 that goes to black screen after short time
December 28, 2023 - If you are having an issue with your Vizio product, please reach out directly by visiting https://vizio.tv/contact. ... Bought my D40f-g9 back in November of 2020. Had no issues, minus the BS firmware that took antenna from the input menu, which made me remove my TV from my network and factory reset. Well today while watching the local news, my TV's picture froze, and went gray, then faded to a black screen. Sound continued to play the entire time. Turned the TV off and back on, no picture at all, but can see the backlight is on.
JustAnswer
justanswer.com › tv-repair › guchx-vizio-d40f-g9-no-sound-remote-control.html
Vizio D40f-G9 Remote Control and Sound Issues - Expert Solutions
Trying to get past English on new, plugged in Vizio D40f-G9. Just bought. Nothing registers - - tried input, home, back, ... I can’t get the tv off parental control blocking. 2 years old model D40f-G9. Just watching tv. It went off and come back ... Won’t turn on black screen power light blinks Vizio D40f-G9 TV, white, a few days was working fine then quit, chat
Vizio Support
support.vizio.com › s › article › TV-Powers-Off-On-Its-Own-Randomly
TV Powers Off, TV won't turn on or TV has No power
The VIZIO Support homepage provides the latest trending support topics and support videos, user manuals, product registration, along with tech specs and troubleshooting steps.
Vizio Support
support.vizio.com › s › article › D40f-G9-Model-Information-EXT
D40f-G9 Model Information
The VIZIO Support homepage provides the latest trending support topics and support videos, user manuals, product registration, along with tech specs and troubleshooting steps.
YouTube
youtube.com › watch
How to Troubleshoot a Vizio TV That Won't Turn On - YouTube
f you can't get your Vizio TV to turn on and you are having problems with it, this video will help you troubleshoot your issues and get it back up and runnin...
Published November 1, 2021
Lifewire
lifewire.com › fix-vizio-tv-black-screen-of-death-4570963
From Darkness to Display: Repairing Your Vizio TV
August 28, 2025 - If the inverter board or another critical component fails, it should be replaced like the power board. If you're not confident in repairing it, hire a technician. If your TV is under Vizio warranty, contact Vizio Technical Support.
JustAnswer
justanswer.com › tv-repair › tj75k-vizio-d40f-g9-smart-tv-connectivity-issues.html
Is Vizio D40f-G9 a Smart TV? Expert Q&A & Help Guide
Technician's Assistant: I understand you're having trouble linking your devices to your Vizio D40f-G9. Could you let me know which devices you are trying to connect to your TV? ... Technician's Assistant: Thanks for letting me know you're having trouble getting the devices connected. Could you provide the model number of one of the devices you’re trying to link to your TV? Customer: Xfinity remote to work. It will only turn on with the Vizio remote and the voice command will not work.
JustAnswer
justanswer.com › tv-repair › fx27v-new-vizio-d40f-g9-back-panel-not.html
Vizio D40f-G9 Back Panel Connections & Manual - Expert Q&A
JA: Have you made sure all cables connected to your Vizio TV are securely attached to both the TV and the outlet? ... Please send it here. ... To send photo, click on the paperclip icon at the top of your typing box, click browse and select the file then click OK. ... I'm just following up to see how everything is going.If you still have questions please do not hesitate to ask.Thank you and have a nice day! ... D40f-G9 users often face confusion connecting composite cables and locating correct AV input ports.
JustAnswer
justanswer.com › tv-repair › lnayq-ok-let-s-try-set-visio-d40f-g9-bought-few.html
Vizio D40f-G9 Firmware Issues and Solutions | Expert Q&A
The device is a Visio D40f-G9. It was purchased a few years ago and has never been connected to the internet, so it hasn't received any firmware updates. Recently, I connected it to the internet to explore some of the smart features, but it didn't go well. I had to perform a power reset almost every time to get it to turn on.
Manuals+
manuals.plus › asin › B07M8RM5HQ
VIZIO D40F-G9 40-inch SmartCast HDTV User Manual
Do not unplug the TV or turn it off during a software update. This can cause damage to the TV's operating system. You can manually check for updates in the TV's settings menu, usually under System or Support. If you encounter issues with your VIZIO D40F-G9 HDTV, refer to the following common troubleshooting steps: