Tcon

[tileman]

Hi everyone my Samsung ln40b610a5fxzc tv fires up fine runs sometimes for a couple of hours then it shuts off. If i unplug the set and plug it back in, nothing happens ,no stand-by light,nothing. If i unplug the ribbon to the tcon board power up the set the power off the set and hook the tcon board back up it runs fine for some time then i go through the cycle once again.Do you think its the t con board? thanks for any advice...

[usermike9]

Re: Tcon

Have you tried disconnecting other boards when the problem arises to see if you get the same result ? Like disconnect the power supply from the main. It is possible that you are simply discharging something with the T-con disconnect. It would seem like the Main logic board or PS is in the mix somewhere. A T-con other than a dead short does not usually shut a set down but there are always exceptions.

[budm]

Re: Tcon

You need to check what signals (PS-ON, etc.) and Voltages are missing when it goes into shutdown mode, some T-CON has error signal out to shutdown the set.

[tileman]

Re: Tcon

THANKS for the quick replies Ill run it and note voltages when it shuts down,Once It shuts down if i unplug the ribbon to the logic board which in turn has a ribbon going to the tcon board the backlight wont come on nor the stand by light until i only hook up the logic board by itself and then shut it down then hook all boards back up and power it back up till it cycles again to shut down which could be from one hour to days