Vizio E471VLE Dead

[Roush2fast]

Re: Vizio E471VLE Dead

At this point, something on the main board is drawing too much current so the STBY 5V goes into shutdown/restart cycle.
May be check the resistance between GND and the 5VSTBY pin with all the board connected to see if it may show really low resistance or not.

Please see attached

[Roush2fast]

Re: Vizio E471VLE Dead

Does the relating resistance indicate anything conclusive ? Seems pretty straight forward to me from a logical perspective that it's the main board when standby voltage fluctuates when the board is connected and when disconnected I have consistent and accurate voltages.

I was talking to a buddy of mine last night and he said something to the effect of checking smp low voltage ic or low voltage regulator . Either of these make sense to you experienced individuals ?

[SavannahPirate]

Re: Vizio E471VLE Dead

I have similar issue but I have constant 5.3V Standby. Scratching my head here.

[dskall]

Re: Vizio E471VLE Dead

Probably bad main board. You would need to load the standby to eliminate power supply

[SavannahPirate]

Re: Vizio E471VLE Dead

How do you load the standby?

[Roush2fast]

Re: Vizio E471VLE Dead

Probably bad main board. You would need to load the standby to eliminate power supply

How would I go about doing this ?

[Roush2fast]

Re: Vizio E471VLE Dead

Would a bad eeprom cause this ? After researching it seems the e series are prone to eeproms failing

[Roush2fast]

Re: Vizio E471VLE Dead

Do I chalk up no replies as lack of interest in this thread and move on or does anyone have anymore suggestions ?

Thanks again