Last week my 6 year old Panasonic PT61HX41E projection tv started automatically shutting down 2 seconds after turning it on. While watching
it, we heard two clicks then the screen went black and the tv shut down.
After unplugging and replugging the power cord before turning on, the
front red power indicator will turn on for about 2 seconds before the tv shuts
off again. I can see the input text in the upper right corner during
this time if I repeat this process. I would appreciate an educated guess at what the problem is and approximately how much it would cost to make the repair so that I can decide if I should repair or replace. Thanks.
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power light keeps flashing and the tv won't turn on. If you unplug for a
minute and hit the power button it sound like it is coming on then it
shuts off and the red power light flashes slowly. The TV is a Panisonic
1080i HDTV, about 6-7 years old.
It is probably a bad temp sensor inside the TV. My 73" started shutting down before it was a year old. I moved it way out from the wall and it got a little better. A tech was just out to change the bulb under an extended warranty and he said there is a service bulletin about the temp sensor. If your TV is out of warranty you might call Mits and see if they will cover the sensor replacement. Tech said it takes about a 1/2 hour in the home to change it...
Try a power drain and monitor if the TV continues to do this or not:
1. Unplug the product's power cable so the device is not grounded to the house.
2. Press and HOLD the product's own power button for 1 minute to drain the capacitors.
3. Plug the product back into a wall outlet and try to turn it on.
Note: This procedure works with battery operated devices as well so remove the batteries and
hold down it's power button. Electricity can remain in capacitors and on circuit boards
enough to prevent normal functionality. By clearing the residue electricity, your product
will have a fresh start and many times this will resolve a buggy or non-responsive device
that appears to be dead.
If this doesn't resolve the issue, it's possible the power supply is on it's last legs.
I still have that problem. I calle Mfr and also spoke to repair shops recommended by them and they said they estimate a cost of 300-400$ or so approx. I am waiting to buy a new LCD which could be few 100 more but at least dont have to live with the old one and keep spending money...
3 blinks means the convergence circuits are shutting the set down. Usually the convergence ICs will take care of the problem, but I would recommend getting the service manual from the following link, as they will provide you free support to help you diagnose why it wont start as usually the convergence ICs wont prevent a set from powering up, unless another component in the convergence circuit has failed. http://servicemanuals.vstore.ca/
I just took my Mitsubishi WS-65315 65" in to be repaired for the same problem and was told that it needed a new main circuit board part number 930b899005 as was told they wanted to charge me $1100.00. So I told them not to do the repair and picked up my tv and found that same part at Sears parts for only $225.00. Some of these TV repair places are theifs.
I have the same problem:
It seems the high voltage trasnformer blew which in turn casued the pin cushion?? to blow. It then shuts the tv off to prevent more damage to it.
Gonna be about $500 with service charges to get it fixed!