Question about Mitsubishi WS-65809 65" Rear Projection Television

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Ws-65809 no high voltage

No picture, but sound is ok. two pictures tube are glowing, the third one is not.

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HI INMARK66-THATS FUNNY I HAVE THE SAME MODEL BUT MY PICTURE TUBS ARE ALL GLOWING I HAVE SOUND BUT NO PICTURE EITHER.????DO U STILL HAVE PROBLEMS WITH THIS TV???IF NOT LET ME KNOW WHAT U DID TO IT???LOOKS LIKE U POSTED THIS AWHILE AGO??THANKS GLENN

Posted on Sep 16, 2008

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Why do we have sound but no picture?


This is an older picture-tube projection TV.
There are just a few things that can affect all three color tubes at the same time. One of these is "Blanking" and the other is the High Voltage.

Blanking happens when there is not a good signal to the TV, and the high voltage and therefore picture are shut off to protect the high voltage system. Make sure there is a good, strong signal to test it from, like a DVD player, otherwise the TV could blank off from low signal levels. A signal good enough to produce sound may not be good enough to keep the picture on, so that is not a good indication of good signal.

The other, High Voltage, is complicated and dangerous to work on and best left to a qualified technician to work on. High voltage in a TV can hurt or even kill you if you get across it.

Jul 06, 2014 | Mitsubishi WS-55313 55" Rear Projection...

1 Answer

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


You have two of these or one set with different problems, If you got this error the set will of course not come on and stay on.

This like some error codes is general in nature---set produces over 20,000 volts to fire the three picture tubes, hence high voltage.

If the High voltage goes above a certain point the latch or shutdown circuit detects this and shuts the set down to prevent X-Ray radiation which happens if the picture tubes receive excessive High voltage--straightforward and needed, locating the part is almost certainly a shop repair.

I would on this model suggest removing power from the set which clears the errors detected and stored and then power up and try to turn set on again---when it fails check for the error code with the self check again

Dec 06, 2012 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

No picture ws 48413


Most likely if sound not coming from surround or cable box the set is blanking all three of the picture tubes this model uses---it will do that for several different reasons= problem at the tubes (a voltage missing there or excessive to prevent screen damage on the tubes.

One of the secondary voltages going to that board (one for each tube). The set monitors Screen voltage, High Voltage, and secondary Vertical deflection (loss of main vertical would trigger shutdown of set)

In short no one easy answer for this as it could be for a variety of reasons===would actually be more easy if the set and the power light just went off==set has a self check that would detect an error in that case and record it===can call that up even if set just comes on for an instant and then off.

Apr 09, 2012 | Mitsubishi WS-48413 48" Rear Projection...

1 Answer

Tv shuts self off after 30 sec


It says it is a Mitsubishi WS-65809--can you confirm that?

Mar 28, 2012 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

The TV will work for a while and then the picture will get lines in it and then the tv will shut itself off.


This Is IK shutdown, this may be from a bad picture tube going bad, or excessive high voltage, If the screen turns a certain color right before shut down then thats the tube going bad, It will either be RED/GRN/BLU screen right before shutdown, the lines are scan lines. If a tube needs replacing then it might be hard to get as CRT manufactures are not making many any more. You can contact http://www.VDC.com for used or remanufactured one.

Dec 09, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Mitsubishi WS-65809 - works, but screen won't power on.


yes that is correct 12 is normal...make sure all connectors are plugged in and in the correct places . conectors should be marked with letters that match the marking on the circuit board. Then look for heaters , in the glass bottom of the picture tubes(CRTs) there should be a little orange glow visable though the neck of the CRTs just above where the crt boards plugg onto the bottom. if the heaters are not glowing then check your wires to the crt boards again , you probly tugged one of them too hard during disassembly also check for cracked solder in the heater circuit......Oh yeah, you didn't mention -Does the TV get high voltage ??? thats important to having a picture......If you see the heaters glowing when the tv is on then look down into the lenses of the crts . If you see a brite color horizontal line closer to one side in each of them then you know most of the tv is working. If that line is curved then the tv probly detects that the convergence circuit is not working and it is blanking video.
OR -----
the error is 21 (see what number it ends the sequence with..) . Error 21 is X_Ray protect and you probly plugged one of the connectors into the diagnosic connector(near the high voltage transformer- normally nothing goes there) . If that is the case then somthing in the H.V. circuit could have been permanently damaged and now the tv has a new problem and wont work even if you put that connector in the right place.

Oct 09, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

I heard sound but not video see it and i unplugged and push the power button x one minute and it doesn't work either


you have a problem with signal or voltages tht goes to 3 proyection tubes ,are you tech?? if yes used a voltmeter to check voltages to high voltage horizontal power , you have problem with deflection area or maybe power supply

Jul 08, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Blurred Picture Mitsubishi WS-65809 65"


the convergence IC's will most likely need to be replaced as well as a resistor or two

electech

Oct 29, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

MITSIBUSHI WS65809 TV


Good Day, GLENN;
I assume that IHVT was arcing from the side, and the audio is from the TV and not stereo? Or was it the high voltage splitter? Was it plug in or soldered IN? It sounds like you may have bridged a solder joint, unplugged something by accident or something else? Double check your work first of all. Do you still get high voltage? You may poor part. Good Luck, big IRISH.

Sep 13, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Sound no picture


OK CHECK THE HIGH VOLTAGE REGION, FLYBACK AND TRIPLICATOR UNITS. CHECK OPEN RESISTOR IN CRT FOR ALL TUBES AND ISOLATION HIGH VOLTAGE CABLES IN EACH TUBES.

Dec 27, 2006 | Sony KP-53S25 53" Rear Projection...

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