Vizio D39H-CO no display or sound

[kewdave1]

Hi, I have a vizio d39h-co led tv with working backlights but no picture or menu. I have replaced the mainboard twice, changed Eprom, changed lvds cable. This tv has only one mainboard with power supply built on the mainboard. I checked voltages at tcon which is built on the panel all look good. The board # is AMtran 3639 0182 0150(7b)
PLEASE HELP

[CapLeaker]

Re: Vizio D39H-CO no display or sound

If you check the LVDS with an oscilloscope (while flicking the menu on and off all the time), it will tell you if you are getting a signal to the t-con. After that, it is replacing the T-Con, which you can't... so at the end of the day, this thing is toast, unless you repair that board.

[tvtanner]

Re: Vizio D39H-CO no display or sound

I have exact same problem. I also changed board twice. If you find problem please notify me and i will do likewise.--sam