Coppell TV Repair LLC offers the EEPROM / flash memory IC containing the firmware for Vizio E422VA main board 756TXACB5K005 / 715G4365-M01-000-005K / 756TXACB5K05203.
Please read carefully the below information and specifically the warranty conditions section!
Do not hesitate to ask if you have questions and good luck with your TV repairs!
Kit ID: CTVRK-PB-NO-0093
Kit contents: The EEPROM / flash memory IC U405 found on Vizio main board 756TXACB5K005 / 756TXACB5K05203 used in Vizio E422VA LED TV. Located right next to the large heat sink in the middle of the board.
Difficulty level: Medum to advanced. The memory IC requires soldering by experienced technician with quality soldering tool.
Generic firmware failure symptoms: As with most if not all other cases for failed firmware there is no simple and definite way to test confirm the problem is there, let alone only there. Below are some symptoms we've seen caused by a defective memory IC however you should bear in mind other failures may lead to the same symptoms.
- A totally dead TV; this is actually model specific. Some older TVs have separate standby processor and most newer models use a single processor for standby and full operation mode. A bad firmware (or bad clock generator, for example, or bad solder joint on the processor) could leave the entire board dead.
- Some TVs may be blinking a number of time and pausing or just continuously blinking , in either case not responding to any button. Some may respond to the power on only to start the blinking procedure again.
The most common failures we've seen when the E422VA firmware is bad are: 1) Totally dead TV (no front LED) and no response; 2) Front LED lighted up, but not bright and no response to buttons (it should normally get brighter and start blinking for a normal startup); and 3) front LED blinking endlessly.
Repair service offered: Yes. If you consider the job too difficult or like to use the benefits of the warranty our repair services carry (and which our repair kits do not) search at our site for a risk free repair service for Vizio E422VA main board.
Coppell TV Repair LLC does not guarantee that this component/kit will resolve the problem in your TV. It is offered based on experience and technical information available to us at the date of publishing of this listing and known to be more or less common for the listed models.
As every failure can be unique so can be every repair task.
In addition, while giving the repair task a rough classification in terms of difficulty, Coppell TV Repair cannot evaluate each individual's qualities to perform the job or prevent operational errors even from skilled technicians.
As such, no warranty is offered on this product.
If you would like warranty please see if a REPAIR SERVICE is offered instead of a kit. Unless otherwise noted all our repair services do come with a standard 90 days warranty.
Coppell TV Repair LLC is not aware of an easy and reliable way available to end users that will allow them to identify beyond doubt a defective or corrupt memory IC.
We describe failure symptoms that we have seen when the firmware IC was corrupted, but those symptoms do not directly map to defective memory IC and the other way around - an EEPROM can be deffective or corrupt and there may be other symptoms that are not listed here.
It is up to the buyer's technical skills, equipment and willingness to assume the risk for the outcome of their repair service effort when purchasing and using this product!
By placing an order customers agree to assume that risk and hold Coppell TV Repair LLC free of accusations and charges related to the outcome of their repair except in regards to the correct presentation of the product and its delivery.
Coppell TV Repair LLC guarantees that the offered memory is new, tested and functional to the best of company's knowledge.
To anyone who does not have the skill and equipment needed to diagnose the IC in their own board we strongly recommend using a purchase/trade-in or a repair service, which we may (and should) be offering for the main board.
SHIPPING AND HANDING
Ships within 1 business day.
We ship every business day M-F.
Items under 14 oz are normally shipped with USPS First Class mail unless other option was available and chosen during checkout.
Packages of 1 lb. and above are shipped USPS Priority, FedEx Ground/Home or FedEx SmartPost, subject to our decision.
ATTENTION INTERNATIONAL CUSTOMERS: If your order is accepted by our store and your address is outside United States you may not be able to track package delivery progress once it leaves the country. The United States Postal Service (USPS) does not provide tracking information to some countries unless the shipment is the most expensive Express type, which is usually too expensive to justify using. You can accept that condition and strip Coppell TV Repair LLC of responsibility to the delivery status of your package provided we show it was shipped and processed by a courier in a timely manner. Or you can contact us prior to ordering and inquiry for delivery confirmation shipping method, which, again, usually costs an arm and a leg compared to the simple USPS First Class shipping.