Question about Panasonic PT-50LC13 50" Rear Projection HDTV

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No picture or sound

When I turn my set on, there is sound and no picture for about 30 seconds, then the set shuts off, the power button light blinks and I can hear the fan running.
Is this possibly just the lamp needing to be replaced or something totally different ?

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  • 19 Answers

The bulb may need replacing. If a new bulb doesn't correct the problem, then the ballast usually needs repairing.

Posted on Jul 29, 2008

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1 Answer

My Projection Tv - when I turn on it turns right back off no picture no sound ? help


To know where the problem is:

when set shuts off and green power light goes off:

On front of set press and hold both the menu and input buttons at same time for at least 5 seconds and release both buttons.

Power light will blink a two digit error code like: 2 blinks, 2 blinks, a pause and repeat it several times.

Let me know what error code you find and I will tell you what it means.

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TV comes on, power light blinks but no sound, no picture and no buttons work on remote OR manually. I've disconnected all peripherals (Wii, DVD, and surround-sound units) and tried re-setting the...


unplug the TV's power cable. With it unplugged, press and hold the power button for 30 seconds and release it. Repeat for another 30 seconds. Plug it back in and turn it on. I hope this works for you.

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Picture & sound go on & off every sec, red light blinks 5 times


helloFive blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.

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I have a Mitsubishi big screen tv model #WS-65857 and the picture went out as though the tv was turned off and when you turn it back the green light comes one for about 5 seconds the goes of there is no...


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} MOST OF THESE SETS HAVE A SELF DIAGNOSTIC:


UNPLUG TV AND THEN PLUG BACK IN---TURN ON---GREEN POWER LIGHT COMES ON FOR A MOMENT AND GOES OFF.

PRESS AND HOLD “device” and “menu” buttons on front of tv for at least 5 seconds and then release both together.


Watch for power light to blink in a sequence:

1 blink-then 2 blinks-------no error

2 blink-then 1 blink-------X-ray protection

2 blink-then 2 blink-------SHORT PROTECTION*******

2 blink-then 3 blink---------deflection circuit problem

2 blink-then 4 blink---------vertical circuit problem


******2, then 2 is most common---usually means one of the fuses that protect the Convergence IC or IC’s is blown---set will detect no voltage to convergence IC and shut down.


SET WILL REPEAT BLINK ERROR CODE UP TO 5 TIMES AND THEN TO GET IT TO REPEAT MORE YOU HAVE TO UNPLUG SET AND TRY TO TURN ON AGAIN.


IF IT IS 2 AND THEN 2---USUALLY
CONVERGENCE CIRCUIT PROBLEM

if your set does not have a device button press Menu and Input together for 5 seconds and release. there will be a pause between blinks---2 blinks, a pause and two more blinks etc.

If you need help: etower.766@netzero.net

I do this here for free so if this has helped you give me a vote here.

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1 Answer

No sound, no picture, power light blinks


i have a model #pt-53wx42f when you first turn the t.v. on it gets shakey and distorted then it shuts down and the power button light starts flashing

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Power button Flashes


For the first one, please list the model number and count the blinks. Also, can you please post each problem separately. It will get too confusing trying to address 3 sets with different but similar problems.
Thanks,
Dan

Mar 18, 2008 | Televison & Video

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