VIZIO E422VA – SERVICE MODE – FIRMWARE UPDATE – DDC UPDATE – POWER AND BACK-LIGHT INVERTER SCHEMATIC

Vizio E422VA – Service Mode – Firmware update – DDC update – Power and Back-light inverter schematic

SMPS and Back-light inverter circuit diagram – Firmware update – DDC update – Factory Mode (Service mode) Vizio E422VA 42 inch LCD TV.

Main Board: 715G4365M0G000005K

Power Board: 715G3829P02W30003S or Power Board 715G3829P02W30003M

Service Mode (Factory Mode)

Press “MENU”+”1”+”9” +”9” +”9” key to enter the factory mode.

Press these keys quickly.
1. Press “MENU”
2. Press “1”>”9”>”9”>”9”.

Network

When you first turned on your HDTV you set up your network connection using the Setup App. If you did not do this or if your setup has changed, you can do this from the Network menu. The Ethernet function on your HDTV is used to access the Internet. Your HDTV also has 802.11n wireless, so you can connect your TV to the Internet through your wireless home network. A wired connection may deliver a more consistent connection depending on the conditions in your home environment. When you enter the Network Menu you will see your current connection method.

Wired Connection
View that your wired connection is set to Connected. This is not an option that you can adjust. It is for information only.
Manual Setup
Select to view and/or manually change your network settings.
Change Settings
Select to manually change your network settings such as the IP Address, the Subnet Mask, the Default Gateway, the Preferred DNS Server, and the Alternate DNS Server.

Warning: unless you are an advanced user and are comfortable with wired and wireless networks, do not adjust

these settings.

Test Connection

Select this option to test your network connection.

Wireless Connection

Wireless Access Points

If there is no wired connection, the wireless menu will be displayed and you will see a list of available wireless networks. You will also see that your Wired Connection is set to Disconnected.

1. Press ▼ to select your wireless network, and then press OK. If you do not see your wireless network in the list, select More Access Points and then press OK.
2. If the network is password protected, enter the secure access code you created when setting up your wireless router. Slide the remote control open and begin typing in the code. You can also select Show Keyboard and use the on-screen keyboard instead of the remote control.  

When you are finished entering the code, select Connect.
Note: If you have forgotten your secure access code, please refer to the user manual for your wireless router or contact the manufacturer or either your router or your Internet Service Provider if they provided the router for you.

More Access Points
Select this option to show more wireless networks in the list. Select this option to refresh the list of available wireless networks.
Manual Setup
Warning: unless you are an advanced user and are comfortable with wired and wireless networks, do not adjust these settings.
Change Settings: Use this option to manually enter the advanced settings of your network, such as the IP Address, the Subnet Mask, the Default Gateway, the Preferred DNS Server, and the Alternate DNS Server.
Test Connection: Select this option to test your network connection.
Enter Access Point Name
Select this option to connect to hidden networks. Slide the remote control open and begin typing in the name of the network (SSID).
Note: If you are not sure of the name of your hidden wireless network, or need additional help setting up your wireless network, please refer to the user manual for your wireless router or contact the manufacturer or either your router or your Internet Service Provider if they provided the router for you.

Partial Channel Search

If you believe channels are missing from the auto search, you can do a partial channel search to look for channels in a certain channel range again. Select to scan for Analog, Digital, or both Analog/Digital channels, and then select

From Channel, To Channel and then select Start. For a listing of digital TV stations in your area, visit  www.antennaweb.org.

Skip Channel

After the TV has stored all of the available digital channels in memory you will find that some channels are too weak to watch comfortably or they may be channels you do not want to see.

 Press OK to select the channel to be skipped when using ▲ or ▼. An X will appear in channels you have selected to skip. You will still be able to select this channel using the number buttons on the remote control. Remember to use the DASH (−), to select digital channels.

Name Input

This feature makes it easier for you to recognize the devices you have connected to your HDTV when you press INPUT. For example, if you have a Blu-Ray DVD player connected to the HDMI-1 input, you can have the input label read HDMI-1 BluRay instead of just HDMI-1. You can select from twelve preset labels.

To use one of the twelve preset labels:

1. Select Input Source, and then press OK to show the list of inputs.

2. Press ▼ to select the input label you want to change, and then press OK.

3. Press ▼ to select Input Labels, and then press OK to show the list of twelve preset labels.

4. Press ▼ to select the new input label name, and then press OK.

5. If you wish to create a custom name, press ▼ to select Show Keyboard, and then press OK. A keyboard will open, allowing you to enter a custom name, up to 10 characters.

Parental Controls
If you want to restrict certain channel and program viewing, you can do this by turning on the Parental Controls. Selected programs, movies and channels can then be made available only after an authorized password has been entered and accepted by the TV.  To select the options in the Parental sub-menu, press OK and then create and/or enter a password. A new menu will be displayed showing the following Parental settings. 

The default password is “0000.”
Note: The Parental menu does not appear when the input mode is set to HDMI or RGB.
Rating Enable
Block or allow access to programs from channels that have been blocked or devices selected as PIP inputs. Turn On to block or Off to allow rated content.

Change PIN (Password)
Enter a new, 4-digit password using the number buttons on the remote control. Enter it a second time to confirm you entered it correctly.
Note: Make sure you write down and store the new password in a secure place. The Reset Locks feature does NOT reset the password.

SMPS and Back-Light inverter circuit diagram

715G3885P03W30003M

715G3829P02W30003S

B-L Inverter

Reset Locks

Return all Parental Control lock settings to factory default. A screen will come up to confirm your selection or to cancel it. Press ◄ or ► to make the selection, and then press OK to accept it.

Reset TV Settings

Return all Picture and Audio settings to factory default. A screen will come up to confirm your selection or to cancel it. Press Left or Right Navigation buttons to make.

Firmware Instruction

There are two methods to upgrade FW.

Method 1

Upgrade online.

This way is easy and invisible. TV can detect new software and load it from website to upgrade automatically when TV is connected to internet and standby (TV AC on and DC off).

Method 2

Prepare a USB memory (The file system of USB memory must be FAT16 or FAT 32).

Copy the F/W files including 2 software files such as T2.1.9_RC0-MP.utv and updatelogic.txt from your computer to the U-disk root content, and remove it from computer’s USB port

Note: Note the software version 2.1.9 as FIG

F/W Upgrade

AC on and turn on the TV. After the logo appears in the screen, insert U-disk to the USB port.

When the TV detects the U-disk, TV will appear a message.  Notice the content in the red frame. [PICTURE RED FRAME]

After about 3 minutes, another interface will show.

Wait for about 7 minutes, TV will restart.

If F/W version is incorrect, please redo upgrade else let’s go to:

If F/W version is correct, press ‘down’ Key to choose “Reset” option (The option will be orange.). Then press ‘OK’ Key to reset.

After reset there will be an interface. 

Turn off the TV by remote control and wait for LED becoming from light to dark. That is all of complete upgrade by U-disk.

DDC Instruction
Note: Take other model for example
Step1. Ready for writing EDID
Tool: 715G2005-C2
Cable: a LPT cable, a VGA cable, a DVI to HDMI cable and a 12V DC adapter.

Connection for writing VGA EDID.

Install TPV EDID tool.

The red frame contents detail information in VGA EDID file.

Click “FPD” to open another interface.

Click “write EDID” to write EDID. If display “NG” in the yellow blank, which represent writing facilely. Please check the whether the connection of tool and cables is normal and retry. Another way is to change a new ISP board and retry.