Panasonic PT-60LC14 won't turn on. - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 2 Old 05-12-2009, 11:59 PM - Thread Starter
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I have a Panasonic PT-60LC14 60in rear projection LCD TV. I replaced the original bulb about a year ago after it burned out from normal usage. Everything has worked to par until recently.

When turning the TV on, the green light would flash a bunch and then finally the thing would turn on, although the picture was very dim. After a day or two of that, when trying to turn the TV on, the green light flashed for a couple minutes and the began to flash red. I continued to try to turn the TV on and after a few more tries, it finally came on...extremely dim. It almost seemed to get dimmer as I watched.

After turning the TV off a little while later it would not turn back on. Green lights. Originally, the lamp light was blinking 3 times and then pause. After unplugging and trying again the next day and the day after, the lamp light started to blink just once and then pause.

Originally, I figured the problem was the bulb. However, the bulb did not look to be burnt out or discolored at all. Additionally, when the TV wouldn't turn on, I never heard any clicking that is apparently associated with the ballast trying to fire up the bulb. I went ahead and ordered the ballast repair kit LSUC0022.

After reading a few other threads, I'm now hesitant to screw around with the ballast if its not the problem. Is it possible there is some other kind of problem with the bulb? Could it be the temperature (thermal) fuse? Where is the thermal fuse? I've found disassembly instructions for the PT-50LC13 and the PT-40LC12, but not for the PT-60LC14.

Anyway, if somebody could suggest some tests that would help me accurately identify the issue, I would appreciate it. Also, any pictures of disassembly would be great. Any and all information or suggestions would be welcome.
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post #2 of 2 Old 05-13-2009, 02:13 PM
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Most likely it is the bulb, especially when you mentioned it had turned on but remained dim. Generic bulbs seem to have a short life.

The easiest thing to try is a known good new bulb. Then, if that does not solve the problem, more extensive repairs can be attempted.

That which may be known of God is evident within man, for God has shown it to them, so that they are without excuse. (Romans 1:19-20)
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