vizio E470VL unusual question

[jgrice53]

Re: vizio E470VL unusual question

I think you may be right about the resistors, I will double check the bridge too and post my findings.

[jgrice53]

Re: vizio E470VL unusual question

yes i think you are right.

[jgrice53]

Re: vizio E470VL unusual question

R747 = RES. CF 0ohm 1/16W J 0402
has anyone ever seen a 0 ohm resister? i have not

[stj]

Re: vizio E470VL unusual question

regularly.
they are used as fuses or to bridge across other tracks.
sometimes even as option jumpers.

[jgrice53]

Re: vizio E470VL unusual question

well that is what R747 is. i knew that it had to be a fuse or something like that.

[jgrice53]

Re: vizio E470VL unusual question

oops ...
R727 = RES. CF 1Kohm 1/16W J 0402

[jgrice53]

Re: vizio E470VL unusual question

okay, finally got back to it. I cleaned up the solder bridges and now when I plug it in the logo goes from orange to white without pressing the power button. I still only have 5v standby. Is this an indication of a defective eprom?

[jgrice53]

Re: vizio E470VL unusual question

.time for an update. after cleaning up the bridged solder joints, i left r727 off and did not replace it because one side went straight to the HDMI chip that I removed. I ordered an eprom and replaced that and still had only 5v with orange logo. so i either should have installed another r727 chip or the main board had other problems. So i found a replacement on ebay for $65 with free shipping It came in today and i intalled it and the tv came right on and is working great.