Re: Vizio E422VA - no picture, logo or backlight
I was connecting using the WiFi. The WiFi connection had no problems at all. The diagnostics and rest of the stuff was completely ok. I also confirmed that using the wired network connection....
kaarigar
Learner
Last Activity: 08-07-2015, 05:21 PM
Joined: 08-27-2014
Location: San Francisco
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Re: Vizio E422VA - no picture, logo or backlight
Yes, I was aware of that and had tried that too. However, the Netflix and other apps such as Amazon Instant Video keep giving the error "Cannot connect". I could never work around that. Any suggestions? BTW, I have verified that the internet settings are correct....Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
Well, I had to buy a new main board and that solved my problem. I bought the main board on Ebay and replaced it myself. I had called the Vizio tech support and they had suggested to fix the problem by installing a new board for $80.
Looking back I think I should have gone for the official Vizio fix because the EBay board doesn't let me run the Netflix app. Apparently this EBay board was previously used and registered by someone else and I couldn't convince the Vizio to update their database because the serial...Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
Yes - those on the eBay go for $120 - $130 range. These are used ones salvaged from TVs that were not otherwise working due to damaged screen. Question is though are they reliable?...Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
Yes, that's what I think too - the 12v supply is missing. I heard back from ShopJimmy guys - they say that the main board is faulty and needs replacement....Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
Yes, this is a smart TV. I measured the voltages across the inductors - no voltage there - it is in mV.
Also, the fuse continuity is ok - is it the one that you indicated on the board with a red arrow next to the connector?...Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
I tried both in that order. No joy....Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
Thanks, budm. Is there any specific that I can look into on the main board?Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
Any suggestions? Thanks!Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
Here are the DC voltages of CN902.
There were no differences in the readings of CN902 at plug-in (not turned on) and power switch on (by pressing the power button on the TV)
ON/OFF 0.0 Pin 1
PDM 0.0
+12v 2.9mV
+12v 2.9mV
GND
GND
GND
24v 4.1mV
24v 4.1mV
PSON 0.0
5v 5.11v
5v 5.11v
ACD Voltage was increasing when the multi-meter terminal applied to it starting
from 0 to 280mV...Leave a comment:
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Re: Vizio E422VA - no picture, logo or backlight
I checked the voltages at a cable connector on power board which seems like the output going to the main board. I checked the 5 volts pins against the ground - they show 5.11 volts. However the 12V and the 24v pins don't show any.
Is it that the main board is responsible for "turning on" the power board using those 5v terminals? If that is so, does it mean that the main board fails to "kick start" the power board? I am not an expert, but it seems that if that is indeed the case, I need to focus on...Leave a comment:
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Vizio E422VA - no picture, logo or backlight
The TV started flickering (or flashing) while it was on and being used (as reported by my son - I wasn't around). The TV was turned off. But couldn't be turned on using the remote.
When plugged in, the indicator LED remains dim, like in stand by mode. None of the buttons on the TV or remote have any effect. There is no 'V' logo, no picture, no sound and no back light. I have tried power recycle as per Vizio tech support - no help. They said they can fix it for $180 - but I want to avoid that route.
What could be wrong? Is it power supply board - I hope because I already... -
Re: New Members - please post your introductions here
Hi Everybody! I am Kaarigar and I am here to help fix my TV. I don't think I am an expert enough to do component level digging - but I hope to at least learn something here!Leave a comment:
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