Question about Mitsubishi WT-46809 46" Rear Projection Television

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Convergence way out when first on-30 sec or so-then allok. is there something like a de-gausing circuitry that is'nt turning off timely maybe?

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Check this out

My problem was imtermittent but radom, but maybe a start.

Posted on Aug 01, 2008

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Got new STK392-040 chips and picture is still distorted. Manual convergence still won't alligne all colors.

the 183 is entry into the tech menu===you need to test all the low value resistors around the convergence chips(only 6 or 8) and they will read low and a resistor with NO reading may be your problem.

Also these sets use a pico fuse going to each chip--either right with it or back at the source----know what a pico fuse looks like"

Mar 12, 2012 | Samsung HCM4216W 42" Rear Projection...

1 Answer

I have a Panasonic PT-47WX42 .. porew light flashes 3 times the stops,, then repeats..if I unplug the power cord then turn on the tv. it warmsup the picture comes on for maybe 3 sec then hear a click just...

The 3 blinks is indicating the set has shut down due to the convergence circuits. You can get the convergence repair kit for your model from the kit contains the parts and the CD with repair instructions.

Jul 28, 2011 | Panasonic PT-47WX42 47" Rear Projection...

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The picture has a rainbow on the top and the bottom of the picture.somebody said it was the convergence chips.If I know how to sotter is this something I can fix myself?I also can't seem to locate the...

I think that it hads been magnetised and needs de-gausing. There is, as best to my knowledge, no chip that does this.
What can happen, is a loudspeaker passes very close to the unit an upsets the magnetic field, as indeed a thunder storm can do.
I would get a service agent out to demagnetize it before you go any further

Oct 16, 2010 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

Will not turn on...not the "green flashing light" issue, something different. it will turn on for 3 seconds, then turn off. I have already replaced the 7 capacitors and 2 fuse on the DM. any other...

Could be convergence. Check the error code by pressing menu and device together for 5 sec and the timer light will flash a code. If it flashes 2 times pause and 2 times again it is the convergence IC stk393-110 and 2 fuses. Goodluck.

Jun 28, 2010 | Mitsubishi WS-55711 55" Rear Projection...

1 Answer

I have a 46 inch panasonic cinenimavision hdtv, i replaced the convergence chips and now the tv will run for about 30 minutes and it will turn off. I unplug it and it and plug it right back in and it turns...

You still have the fault that is causing the failure of the converganvce chips, I would look for a Higher than optimal dirty power Voltage rail, or something causing excessive current draw in the drive circuitry, OR check out the Switchmode PSU, Voltage levels and AC ripple,"Cleanlinesss" they are swines of things. GL

Jan 24, 2010 | Projection Televisions

1 Answer

Turns off after 30 seconds

i think the convergence amps are weak, or the akb circut has caused the tubes to go bad, google your model number to see if it is in the tube problem. sony made some projos w/ bad tubes in them. tv lasts only three or four years,no cause i had one

Jul 10, 2009 | Sony KP-65WS500 65" Rear Projection...

2 Answers

My philips tv won't turn on.

Very unlikely to be the switch. With the power supply shutting down, the problem is probably in one of the circuits that is supplied by it. Unless you know what you are doing, leave it to a technican.

Dec 30, 2008 | Philips Projection Televisions

1 Answer

HITACHI 65SWX20B turns off in 3 seconds

On most Hitachi circuit boards there are small green lights in the circuitry that show if a section of the set is working. Also,there are small protection fuses that look like resistors on the board around the power supply transformer. Check to see if any of those are open and it will lead you to the trouble spot. More than likely on that set it is convergence, vertical, Cold solder in horizontal (FBT or H.Drive xfmr.), cold solder at vert. output, regulator i.c., or audio out. Make sure you check the fuses that go to the convergence amps and look for discoloration on resistors surrounding conv. STKs. These are prone to change in value or burn up. Hope you have some luck solving this, Russmann.

Jun 24, 2008 | Projection Televisions

1 Answer

Toshiba 40H80 - Turns on . . . wigs out for about 30-seconds . . . shuts off.

A convergence problem is very commond. In most cases the convergence output amplifer IC's need to be replaced. This is not something you should do. Call a repair shop.

Apr 15, 2008 | Toshiba 40H80 40" Rear Projection...

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