vizio no backlights bad main or inverter help?

[mattstolte]

ok I got this set turns on just no backlights, has 24 v coming from inverter, fuse on inverter is good. I just don't see anywhere to check for bl_on or dim voltages . trying to troubleshoot this to determine which is bad. its model numbervw32lhdtv10a

[budm]

Re: vizio no backlights bad main or inverter help?

Check the DCV at the power supply board connector pin 'A', and 'B'. when TV is OFF and when TV is ON.

[mattstolte]

Re: vizio no backlights bad main or inverter help?

OK BUDM they both have pretty much nothing when tv is on and off. so if that's the dim/bl then main is bad, now is there anyway to figure out what on the main causes that?

[budm]

Re: vizio no backlights bad main or inverter help?

You need to check the Voltages of all 3 pins of those Voltage regulators on the main board, also the fuses on the main board.