I have replaced the power board and main board in my tv and it will not turn on, any thoughts?

SOURCE: Vizio L32 tv

Had same prob;em. Replace main board and now works just fine. You need to take the back off and under the metal cover is the main board. The part number should start with 3320-xxxx-xxxx. You can purchase the board from Vance Baldwin. vancebaldwin.com sign in as a guest. I will warn you the cost of the board is high.

Steve

SOURCE: vizio 42 hdtv mo picture,no sound

Hi

Thanks for using FixYa. Please check the following—

1. Is Power board output +5V?
2. Is J1 (#19 in the right diagram)connector good?
3. Is DC-DC OK, check the voltage at J1 using a multimeter.
4. Is U4 (3.3V) working ok, U4 is an IC, you’ll need an IC tester or an oscilloscope to check this IC.

After checking this if it still doesn’t work then check P3 D-sub Input (on the D-board). See this schematic for details--









Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks

Rylee

SOURCE: Vizio VX32L HDTV10A - will

I would say the high-voltage transformer which acts like a power supply itself is bad. Noth the board!

SOURCE: please can you help me narrow down an issue with

Hi:
This problem is direct and simple, Replace the T-Con board.

Sonny Berry

• 8617 Answers
• Posted on Nov 03, 2012

SOURCE: my tv [vizio vf550m] won't respond to a remote.

Vizio is famous for having main board issues. If you have replaced the IR board the only two other items it could be is a broken wire from the IR to main or the main board has an issue. Nothing else can stop the remote from working provided the remote is working properly.