Question about Mitsubishi WT-46809 46" Rear Projection Television

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Mitsubishi WT-46809 Problem getting HD from DirecTV

I bought this model about 4 years ago thinking it was only a few years till I would upgrade and actually use the full capabilities of this set. Yesterday, the DirecTV installer hooked up a Model H20, DirecTV HD Receiver. After much long anticipation I was agast to discover that the set would only work on the 480i and 480p resolution settings. The 720p and 1080i settings only show what resembles a scrabbled screen. I checked the monitors advance video settings and the only options listed are 480p and 960i, even the though the label on front of the set seems to indicate it can operate at 1080 ("HD1080 Series"). Has anyone else been confronted with this dilema and is there away to upgrade the set or am I just out of luck on this?

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Re: Mitsubishi WT-46809 Problem getting HD from DirecTV

I have found some info on this, please read: "For standard (480i) connections, there are three S-Video/ composite-video/ R/L audio sets. You would use these for any of your standard video connections such as a VHS VCR. There are two component-video (Y-Pb-Pr) connections, each with three RCA jacks, which will accept input at 480i and 480p (such as the output from a progressive-scan DVD player, for example). Each of these two component-input sets has a corresponding R/L audio connection. Finally, there's a single component-video connection with five RCA jacks, handling Y, Pb, Pr, H, and V (the last two are for horizontal and vertical sync signals). This last component-video connection will take input at 480i, 480p, and 1080i. You do not have to use all five connections. If you have a 1080i-output device, such as the analog output from an STB digital high-def broadcast tuner, with only Y-Pb-Pr output, you can connect to just the three Y-Pb-Pr connections on this five-jack component-video connection. As with the other component-video inputs, the Y-Pb-Pr-H-V set has a corresponding R/L audio input jack pair. The Y-Pb-Pr-H-V component-video connection will also accept an analog VGA-connector output. To make such a connection, you will need one of the adapters with a VGA jack on one end, connected to a cable whichs splits into five separate cables, each terminating in the appropriate type of RCA plug (Y-Pb-Pr-H-V)." This might be your solution. It worked on my Mitsubishi WT 46809. I have moved the component cables installed by the Direct TV installer to the second row of component-video connection (labeled 1080i) and finaly my DirectTV HD receiver is recognizing the 1080 signal.

Posted on Jul 11, 2007

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Re: Mitsubishi WT-46809 Problem getting HD from DirecTV

I have the same exact problem. Same model, etc. Is there a resolution?

Posted on Nov 13, 2006

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Wt-46809 has convergance issues

Replacing the Convergence IC's should do the trick. But it is not a easy repair do to the disassembly requierments. I would recommend calling Mitsubishi at 18003322119 to get a local service facility to come out and give you a estimate to repair.

Jun 21, 2009 | Mitsubishi WT-46809 46" Rear Projection...

2 Answers

Not enough hd inputs for mitsubishi wt-46809

The splitter may work or an audio/video switch box like this one

May 03, 2009 | Mitsubishi WT-46809 46" Rear Projection...

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Mitsubishi wt-46809 not turning on

Your convergence amp ICs have most likely failed and that will shut the TV down. You need to replace both convergence ICs they are both STK392-570 you can get replacement ICs with free instalation instructions at the following link.

Jul 18, 2008 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer


On this set if it still turns on and you see a picture then the only thing you will need to replace are the ICs. Use heat sink compound on the new ICs before replacing the old ones. If you have a parts supplier in your town, then, use them. If not, Radio Shack will do in a pinch. The old ones may be stuck to the heat sink, so, a flat blade screwdriver may help with that. Use a clean soldering iron and good solder wick. Good Luck

Jun 10, 2007 | Mitsubishi WT-46809 46" Rear Projection...

2 Answers

Mitsubishi WT-46809 Intermittent color problem

I have the MITSUBISHI WT-46809 46" HDTV CONVERGENCE IC PROBLEM as well. I just ordered the STK392-570 IC for 7 bucks and I am going to attempt to switch them both out (two of them). I am getting the overstated "bow tie", "RBG separation" issue that you are talking about. I am going to attempt to de-solder the intergrated chips and put new ones in. I figure it is worth the shot, insted of paying 350-650 bucks to have some **** with average skills do the same I figure it is better to have this **** with average skills do it and keep the cash. I will let you know how it goes.... DJ

Feb 24, 2007 | Mitsubishi WT-46809 46" Rear Projection...

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