Re: e701i-a3 no picture but backlights

Budwich, thanks for your prompt response. What I meant by backlight fluctuations was the brightness changes that occur on the almost dark screen whenever the TV is responding to a channel, volume, menu, etc. key press. The usual symptom. I'll repeat the troubleshooting because now I don't remember if I left the tcon ribbon unplugged while I disconnected the small white ribbon cable. Thanks again.

Re: e701i-a3 no picture but backlights


Check page 12, #232-234...

Re: e701i-a3 no picture but backlights

Thanks to the help from budwich, tom66 and especially freakaftr8 I have been able to repair 3 sets of the E701i-A3 variety. However my fourth one is resisting repair. This particular set has all the usual symptoms except that the COXA mosfet on the original t-con was not shorted and the voltage readings are correct. I tried a replacement t-con and then removing the white connectors to the tab- driver boards on alternate sides but get no signs of life from the panel except for the backlight fluctuations. Anybody have a similar experience. Thanks...