Vizio E420VL 3642-0872-0150 Main Board U14 EEPROM ONLY (see details below before purchase)
IMPORTANT:
These main boards can have multiple failures, in addition to the EEPROM.
If EEPROM replacement does not repair your board, there are likely additional problems.
Symptoms EEPROM replacement CAN fix:
- Display is frozen on VIZIO logo screen*
- TV won't power on with remote/buttons when plugged-in
(VIZIO is lit in orange, but won't turn to white)
- TV turns on when first plugged-in, but it won't turn back on after 30 minutes of being off
- TV shuts off and goes back to standby mode (orange VIZIO lit) after you turn it on
Symptoms EEPROM replacement CAN NOT Fix:
- TV turns on but has NO backlight
- TV turns on AND backlights are on, but has no video display at all
- TV won't turn on*
- HDMI issues
- Audio issues