Question about Mitsubishi VS-55705 55" Rear Projection Television

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Sound but no picture on a Mitsubishi VS-45VA2.

I have a Mitsubishi VS-45VA2. The sound is great, but I can't get a picture. I took the back off to check fuses but none appear to be bad. It was very dusty and I cleaned it out as best as I could. There appear to be no burn marks from bad components. What is my next step?

thanks.

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  • alvada Feb 18, 2008

    My son was playing his XBox and the game appeared to have locked-up. When he restarted the XBox the screen had 10" back bar at the top of the screen. After turning the TV off and unplgging the power in an attempt to reset the TV, when the TV was turned-on the sound came on but no picture. I have turned off the TV and waited an hour but when I turned it on there was still sound but no picture. Since the XBox is High Def we had tried to connect it to the DTV jacks on the TV to get the 1080i picture without success. This time we had it plugged into the TV's DTV jacks but had the XBox set on standard TV (not HDTV). When set on HDTV we got distorted horizontal lines. HELP!!

  • alvada Feb 18, 2008

    The model of our Mitsubishi projection TV is WS-65807

  • Jaiden73 Feb 19, 2008

    "Two other questions do you have video through the pip with the
    alternate input? and do you have on screen display when you push menu
    on the remote?"

    I haven't checked that yet. I wanted to try and get something through the picture tubes before I spend the money on a remote. I know it's a catch 22 because I need the remote to check it out, but if the TV is beyond repair I'll have a useless remote...

    Surprisingly, I somewhat understand what you are telling me to do with checking all the pins. If only I had a multimeter.

    I'll check back when I have some meore news. Thanks a bunch!

    D.

  • jrayschell Jan 26, 2009

    Same problem. Sound is great - no picture. I can change channels w/remote fine but still no picture. We put in a DVD & it worked fine w/picture for about 5 minutes but then started going out and within a few minutes - nothing. So I'm guessing it's the picute tube, now finding an honest technician....

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  • 8,617 Answers

This is the VZ1 Chassis.. CHECK FOR 1200 VDC AT PIN 1 OF CONNECTOR "DK". IF LOW OR MISSING CHECK R5D9 100 OHM 1/2 OFF PIN 1 OF THE FLYBACK ON THE MAIN PCB. 2. CHECK IC401 PIN 8 FOR 28 VDC IF MISSING CHECK R510 1.2 OHM 1/2 W OFF PIN 5 OF THE FLYBACK. IF OPEN IC401 PART # 272P239 If those voltages check out let me know and we will go to the next level. Two other questions do you have video through the pip with the alternate input? and do you have on screen display when you push menu on the remote?

Posted on Feb 16, 2008

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I have sound but no picture on my mitsubishi VS-45VA2, what can I do to solve this problem?


Well, today may be your lucky day. This is a 200.00 repair at least, but I'll attempt to help you for free. Most commonly on this set the pip module fails. This is a small standup board mounted on the signal pcb. There are 2 plugs that connect it to the signal board. These plugs are VS and VA. First, Disconnect the power to the tv and remove either the front or rear cover. Use good lighting. Disconnect small standup board from signal pcb using a small screwdriver to undo the two clips at VA and VS connectors. Pins of the VA connector are marked on the board so you can tell which one is pin 1 through 11. Simply jump a small wire from pin 5 to pin 11 and a small wire from pin 7 to pin 9. Make sure the wires do not touch and this will bypass the pip module for testing. With pip module removed and 2 jumpers installed plug set in and turn on. The set should now show a picture but the pip will no longer work. Hope this helps. Good luck, Russmann.

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Odds are real good that the solder connections on the deflection yokes are bad. Go through the front access panel and with a small mirror look and the back side of the connector on each yoke. The top two pins of each will probably show 'ringed' solder connections.

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From the symptoms you describe, it seems the high voltage flyback autotransformer has failed along with the horizontal amplifier (they are slaved to each other). The sound comes from the flyback unit.

Well, the only way to solve this is to get a technician take a look at the set, I'm afraid. Repairs could cost upto $100 or more, depending upon the number of components that need to be replaced,

Hope that helps!

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Does it operate at all, or does it start to power up then shut down?

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