Re: e701i-a3 no picture but backlights
Boom, this is what I needed to hear. Went ahead and tore the right side off and a week later it's still working great! Picture looks back to normal. In the beginning I had some oddities happen, where it would look fine, and then have some odd lines (see pic), but it seems to be working fine now in the last several days. Just want to say thanks again for the help on this place! We'll see how long I prolonged this TV's final end.
A summary of my experience for those of you still trying to diagnose: I ended up going through 3 Tconn boards (1st: original board, 2nd: plugged it all in on replacement board without diagnostic and it died after 30 seconds, 3rd board (they gave me a free replacement
) I went through a process to diagnose and I killed it, and the 4th one is working in the TV now.
If you get a new Tconn (most likely you may want to buy two, but I found some on ebay that shipped quick out of california for 20 bucks each so not bad) . Ideally you should not connect all the connectors to the Tconn and turn your TV on again like it's just going to magically work again. Do a basic voltage check on the inputs to the Tconn if you can as the inputs ribbons to Tconn should be fine to connect and power up unless you have a different issue upstream. On the outputs, only plug in one ribbon at a time to the Tconn output. See yellow lines in the pic below.
The easiest way to assess which LCD driver side is bad (but most likely to blow a Tconn board) is picking one output on the Tconn or the other and turning the tv on (pro tip: plugged into a power strip makes a easy way to use the switch for a quick power off too). I plugged the left Tconn in first and I saw picture, unplugged it and plugged it to the right side. I saw picture and then it died while looking at it. This was the biggest indicator that the right said had failed. This is also why it's useful to have an extra Tconn. I did end up further investigating by installing a new Tconn and disconnecting the ribbon at 2R or 3R (doesn't matter) and assessing the picture on the LCD. See original post with some more pics HERE
Luckily freak was able to diagnose further and confirm my suspicion via pics that the right side looked messed up. Post with additional detail HERE
Access the driver boards (removed already in this pic) by removing like 5 screws to get the metal bracket off. The plastic shroud on the font of the tv doesn't have to come all the way off.
Tear free the driver boards by pulling them to the left in this pic. See THIS VIDEO for a good reference
What you end up with like everyone else if you do it right
Weird lines I got in the beginning after I plugged everything back in. Those vertical lines were visible over large portions of the TV. They did seem to go away after a day..
Looks good now! Woot.
Closeup
Boom, this is what I needed to hear. Went ahead and tore the right side off and a week later it's still working great! Picture looks back to normal. In the beginning I had some oddities happen, where it would look fine, and then have some odd lines (see pic), but it seems to be working fine now in the last several days. Just want to say thanks again for the help on this place! We'll see how long I prolonged this TV's final end.
A summary of my experience for those of you still trying to diagnose: I ended up going through 3 Tconn boards (1st: original board, 2nd: plugged it all in on replacement board without diagnostic and it died after 30 seconds, 3rd board (they gave me a free replacement
) I went through a process to diagnose and I killed it, and the 4th one is working in the TV now.If you get a new Tconn (most likely you may want to buy two, but I found some on ebay that shipped quick out of california for 20 bucks each so not bad) . Ideally you should not connect all the connectors to the Tconn and turn your TV on again like it's just going to magically work again. Do a basic voltage check on the inputs to the Tconn if you can as the inputs ribbons to Tconn should be fine to connect and power up unless you have a different issue upstream. On the outputs, only plug in one ribbon at a time to the Tconn output. See yellow lines in the pic below.
The easiest way to assess which LCD driver side is bad (but most likely to blow a Tconn board) is picking one output on the Tconn or the other and turning the tv on (pro tip: plugged into a power strip makes a easy way to use the switch for a quick power off too). I plugged the left Tconn in first and I saw picture, unplugged it and plugged it to the right side. I saw picture and then it died while looking at it. This was the biggest indicator that the right said had failed. This is also why it's useful to have an extra Tconn. I did end up further investigating by installing a new Tconn and disconnecting the ribbon at 2R or 3R (doesn't matter) and assessing the picture on the LCD. See original post with some more pics HERE
Luckily freak was able to diagnose further and confirm my suspicion via pics that the right side looked messed up. Post with additional detail HERE
Access the driver boards (removed already in this pic) by removing like 5 screws to get the metal bracket off. The plastic shroud on the font of the tv doesn't have to come all the way off.
Tear free the driver boards by pulling them to the left in this pic. See THIS VIDEO for a good reference
What you end up with like everyone else if you do it right
Weird lines I got in the beginning after I plugged everything back in. Those vertical lines were visible over large portions of the TV. They did seem to go away after a day..
Looks good now! Woot.
Closeup
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