I am wondering if anyone has had any experience with (7 flashes) internal temperature errors with this model or similar models.
The set will turn on and run for anywhere between 5min to a few of hours. After it shuts down and gives the temperature error it may take a day or so before it turns back on. I have got the service manual on from an online source. I have only seen a couple of other peoples comments on forums that have had similar problems. The majority of problems I have seen are for the other error codes.
I have entered the service and self diagnostic areas of the set to see what was going on there. The temperature error is the only error that has occurred. The set has the latest firmware download. The set is in an open area so there are no problems with ventilation. I have the back off at the moment to run it without any air restriction to see what happens and it responds to same as if the back is were on. I have also ran the set with a small fan blowing around the BAL board and it ran around over 15 hours that way . Not sure if the fan helped or not but that is the observation.
The 3-4 error flow chart in the service manual says that it is possible that the BAL board or the panel may be at fault but the 3-1 triage chart doesn't show the panel as a possible cause, it only shows the BAL board. I am at a loss the figure out why the internal temperature sensor is shutting down the TV when there is plenty on air flow around the sensor itself. Are these sensors prone to go bad? Has a prior hi-temp situation made the temp sensor more sensitive? If the panel is in question, what is it about the panel that would trigger the temp sensor to shut down the TV. Is it ambient heat from the panel around the temp sensor or heat build-up in the circuit of the temp sensor relative to the panel.
I would greatly appreciate any thoughts or ideas.