Hello everyone
I have a Vizio E422VLE that has start-up issues. When turned on after being off a few hours, it takes about 20 minutes for it to display the screen properly. This model has only two boards, power supply and main board (see photos). When I received this TV I found that the stereo audio out port had issues as well. It appears that a 3.5mm jack had been broken off in the port and an ink pen was used unsuccessfully to get it out. I removed the port (after taking the included photos) and the problem still exists. The port had three pieces of metal inside it. One thing that I did notice after removing the port is that the menu now worked correctly. Before removing it, the menu would not stay on the screen and the information displayed at the top right (input, channel #, etc) flickered and did not disappear as it should have. Now that the port is removed, the menu functions properly. The problem with the screen still exists. In short, during the first 20 or so minutes after cold start, only the top inch of the screen works properly. The rest has displays various screen states: vertical lines, black areas, faded area. I cannot adequately describe this behavior so I recorded a video that demonstrates from start-up to the time it actually functions as normal, about 20 minutes later. Please check out the video at (https://www.youtube.com/watch?v=0TpqaZntiq8). I would appreciate any suggestions you might have. I also checked the voltages from the power suppply to the main board and they are as they should be. I also checked what I believe are the voltage regulators (cannot locate a service manual).
CN202 voltages are:
Pin 1 (SB): +5.28v (+5.34v when turned off)
Pin 2 (SB): +5.28v (+5.34v when turned off)
Pin 3 (SB): +5.28v (+5.34v when turned off)
Pin 4 GND
Pin 5 GND
Pin 6 GND
Pin 7 GND
Pin 8: +12.27v
Pin 9: +12.27v
Pin 10: +12.27v
Pin 11 (Remote On/Off): +3.25v
Pin 12 (BL On/Off): +3.25v
Pin 13 (Lamp Status): +1.25mv
Pin 14 (Dimming Signal): +1.8v
UP13: (In) +3.3v (Out) +1.199v (Adj) +2.2mv
UP2: (In) +5.25v (Out) +3.3v (Adj) +2.04v
Video of problem.
(https://www.youtube.com/watch?v=0TpqaZntiq8)
I have a Vizio E422VLE that has start-up issues. When turned on after being off a few hours, it takes about 20 minutes for it to display the screen properly. This model has only two boards, power supply and main board (see photos). When I received this TV I found that the stereo audio out port had issues as well. It appears that a 3.5mm jack had been broken off in the port and an ink pen was used unsuccessfully to get it out. I removed the port (after taking the included photos) and the problem still exists. The port had three pieces of metal inside it. One thing that I did notice after removing the port is that the menu now worked correctly. Before removing it, the menu would not stay on the screen and the information displayed at the top right (input, channel #, etc) flickered and did not disappear as it should have. Now that the port is removed, the menu functions properly. The problem with the screen still exists. In short, during the first 20 or so minutes after cold start, only the top inch of the screen works properly. The rest has displays various screen states: vertical lines, black areas, faded area. I cannot adequately describe this behavior so I recorded a video that demonstrates from start-up to the time it actually functions as normal, about 20 minutes later. Please check out the video at (https://www.youtube.com/watch?v=0TpqaZntiq8). I would appreciate any suggestions you might have. I also checked the voltages from the power suppply to the main board and they are as they should be. I also checked what I believe are the voltage regulators (cannot locate a service manual).
CN202 voltages are:
Pin 1 (SB): +5.28v (+5.34v when turned off)
Pin 2 (SB): +5.28v (+5.34v when turned off)
Pin 3 (SB): +5.28v (+5.34v when turned off)
Pin 4 GND
Pin 5 GND
Pin 6 GND
Pin 7 GND
Pin 8: +12.27v
Pin 9: +12.27v
Pin 10: +12.27v
Pin 11 (Remote On/Off): +3.25v
Pin 12 (BL On/Off): +3.25v
Pin 13 (Lamp Status): +1.25mv
Pin 14 (Dimming Signal): +1.8v
UP13: (In) +3.3v (Out) +1.199v (Adj) +2.2mv
UP2: (In) +5.25v (Out) +3.3v (Adj) +2.04v
Video of problem.
(https://www.youtube.com/watch?v=0TpqaZntiq8)
Attached Files
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