Question about Toshiba 46H84 46" Rear Projection HDTV-Ready Television

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Green Solid Hour Glass

When I shut the TV off, I heard a loud Pop. When I turned it back on, the screen is almost solid green hour glass shaped. The images are barely visible all green. Is this a major repair costing more than $300-$500 dollars? I really enjoy the TV since I mostly watch HDTV.

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Re: Green Solid Hour Glass

Possible convergence amp ic's failed should be under $300.

Posted on Sep 05, 2007

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Mitsubishi projection T.V

check the lamp first to see if intact or shattered.

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Picture goes into an hour glass shape. red/orange color on one edge of the hour glass and green/blue color on the other edge.

You have a bad cap or two in the horizontal deflection [Pincushion problem] and you may have to look for a burned resistor. Use your vision to inspect burned areas on the board, this will most likely tell you where the problem may be. Area should be between the Vertical and Horizontal deflection. Look for the flyback transformer that is the board you are looking for! Hope this will you a good start. Thanks for asking!!

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We were watching a DVD last night and heard a "pop"

2 BLINKS, A PAUSE AND 2 BLINKS is short protection------most common reason for this is one of the two pico fuses that protect the 2 STK-392-570 convergence IC'S is blown----set will detect this and shut down instantly.

Someone needs to locate the fuses (usually on center board in the middle and towards the back) and check them---they are not glass fuses but look like a resistor and are solid green in color---there should be 4 or 5 of them---the two closest to the back of the set should have location numbers printed on the top of the board and are FA904 and FA905---both will be marked on the board as 5 A--5 amp.

If either or both are gone--they and the two convergence chips need to be replaced.

Let me know if you need any more information about what this repair consists of.

Regards, SD TECH

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TV acts like it is turning on then shuts off then repeat, repeat

When my lamp died the bulb literally exploded. That may be what you heard. Have you check the lamp? If the lamp is ok, the lamp's ballast or power supply might have blown.

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my first question is have you checked the bulb. the loud pop sound like the bulb blew and the rattling sounds like the lamos trying to fire. remove the bulb cover and unscrew the bulb

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If there is a hour glass shape to the image but convergence is normal, there are 2 possibilities. You either have a pincushion correction problem or if the hour glass seems to be moving, it will be an open filter capacitor in the power supply.

Unless you are electronically inclined troubleshooting this issue will require a factory trained service technician. You can expect to spend $300-$400 to fix this.

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The link you posted has been deleted, so I cannot see the picture you posted. If the sides bow in like an hourglass and the red, green and blue colors are still aligned then there is a horizontal width or pincussion problem, but if the sides bow in and the 3 colors have separated and are no longer anywhere near aligned then you have a convergence problem, both of which should be serviced by someone with experience in servicing projection TV's.

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