Question about Panasonic PT-45LC12 45" Rear Projection HDTV-Ready Television

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Please help tv turns on and acts normal and has a good picture for ~30 sec to 1 Min then shuts down I can hear the fan run. The lamp light is blinking 4 times pause...4 times pause....

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That is the blink code for the lamp ballast. Here is the more complicated explanation from the service manual.

IC2301(pin11) detects the error of LCD Power C.B.A. and Lamp,
then indicates the error when an inner malfunction of LCD Power
C.B.A. occurs, the Lamp voltage becomes more than 130V or
less than 30V, Lamp current becomes more than 5A, or the Lamp is blown

Hope this helps.

Posted on Apr 03, 2008

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Posted on Jan 02, 2017

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My sony sxrd 60 comes on only for a sec than go off and red stanby lamp blinks 4 times,i have cleanned vents and checked bulb door,can only turn tv off and back on ,and still onlly get screen to show...


Hi,
4 times red light blinking indicates problem with exhaust fan that is not running and tv shuts down instantly due to protection mode activation.
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My tv comes on runs for 30 sec. then loses sound and picture for 30 sec. and the standby light flashes green for 30 sec. then the picture and sound comes on . then about 30.sec. later it does the whole...


Hi,
It is symptom of weak lamp that has been reached to an end of its working hours life but not dead/ broke yet.
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Had a power outage while watching tv. Then 3 blinking lights.


This is an on-going problem with DLP sets. Normally you shut the set off and the cooling fan cools the lamp down and then it shuts off. In your case, of which it's not your fault, however your lamp has taken a major hit by not properly cooling down, in turn, you need to replace your lamp at this time.
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Mine does the same thing try a new lamp I am with what I have read this is the best solution. I have had green screen two fans replaced and now this. The picture was great but with all the problems i would never but a sony product ever again for anyone out there you should tell them sony sucks and send them to this web site for clues. Good luck.

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Tv turns on and than red status light comes on and shuts down


it sounds like the 3300uf caps on the power supply have gone bad.look at them and see if they are pregnant. if so change them. while you have the shield off see if any other caps are pregnant, if so you might want to think about having the chassis repaired.

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This is pure conjecture but I think the cooling fan has failed or is running slow.
Check to see if it can still be heard.

This system seems to be a bit weak on reliability.

Mar 30, 2008 | Televison & Video

1 Answer

JVC AV56WP74


Replace the lamp, also the shut down time is correct the unit must allow plenty of time proper lamp cooling. otherwise the lamp life will be greatly shortend. normal lamp life is 3000 hrs.
lamp replacement may require an internal limp timer reset have a qualified tech replace the lamp.

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3 Answers

Tv keeps turning off?


cutta, you will most often hear a click on boot then the fans start up and lamp will then fire. The picture will start to show up....at what point does it shut off? and do you hear a click when the tv is turning off? Is it the complete tv shutting down, fans and everything that turns off? Do you see any lights on the the front panel "POWER", "STATUS" or "LAMP", what are they doing? If you see a Power, Status or Lamp light after it shuts off the below are what they mean if there is an issue. POWER - STATUS - LAMP - CONDITION/ISSUE: Off - Yellow - Off - Temp. high/dirty filter/excess room temp Off - Off - Yellow - 4000 hrs. Lamp usage warning Off - Off - Blink Yellow - Lamp Cover open Off - Blink Yellow - Off - Air Filter Cover open Off - Off - Red - Lamp failure (failed to turn On or broken) Off - Blink Red - Off - Fan Has Stopped Off - Red - Off - Circuit failure (short) or DVI cable disconnected If you want to check for the last "Error Code", after you first turn the TV on, by pressing the front panel ?DEVICE? and ?MENU? buttons at the same time and holding them for 5 seconds, it activates the Error Code Mode. The ?Power LED Light? blinks/flashes (1/2 sec delay) and then flashes again denoting a two digit Error Code indicating no problem or an error has occured since the last Initalization. i.e. "Power light" blinks 3 times (1/2 second delay) and then blinks 4 times then 1 sec delay and repeats a few times. This would mean "Error 34 - Lamp abnormality". See below for error codes..... Error Code - Description or issue 12 - No Error detected, check Power Supply 32 - Lamp Cover is open 33 - Air Filter Cover is open 34 - Lamp abnormality 36 - Light Engine (DMD or LAMP Fan stopped) 37 - Exhaust or Lamp Ballast Fan stopped 38 - Lamp temperature high 39 - DMD temperature high 41 - Short is detected 44 - DVI cable between FMT & Engine disconnected. Sorry for the long answer but it was an open ended question.

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