Question about Mitsubishi WS-73903 65" Rear Projection Television

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Upgrading a Mitsubishi model WS-73903 projection tv to high def

I have a 10-year old Mitsubishi WS-73903 Projection television that is "HD ready." Mitsubishi tells me they no longer make the Mitsubishi-brand receiver that will allow my unit to upgrade to receive HDTV signals. The unit is in perfect working order so I do not want to replace it with a newer model at this time.

Several questions:

1. does anyone know where I can buy a receiver that will fill the bill?
2. if I subscribe to Direct TV will this replace the need to buy the special receiver?
3. what quality of HD can I expect to receive with my 10-year old unit?

Many thanks in advance for your assistance.


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  • djme1l2e Jan 06, 2009

    I am having some similar issues. I have a dishnetwork hd reciever that has an hdmi outputs as well as component outputs. Since the hd connections on the tv are r/g/b/h/v bnx connectors, i tried hooking up to the component connections butstill no picture. Does anyone know away to get "HD" on this tv? I did see somewhere on another website that there is a chip or something that can be plugged into the bnx conections and give the tv an hdmi hookup. Does anyone know about this? Thanks

  • Donald Girard Jan 13, 2009

    I may have found a solution to my problem.

    Mitsubishi customer service led me to RAM Electronics (888 726 2440) who sells a KD-VA5 digital video converter that is made for Mitsubishi projection TVs. I spoke to RAMs technical support people last week and they say that this converter is compatible with my Mitsubishi unit.

    Box and cables are $450. I ordered it and will let you know in about a week or so whether this worked for me.




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Radio shack wallmart all of those places sell the receiver

Posted on May 05, 2010


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2 Answers

Mitsubishi ws-73903 73" red convergence is stuck and won't move.

I have to presume you have got the model number wrong--WS-73903 does not show as a good model number.

Correct model number will be on the back of the set along with month, year the set was made.

If you have a convergence problem with the valid model number I can tell you what parts need to be replaced and in many cases I have Start to finish, step by step instructions for this repair.

The instructions based on model number are free and if available for your model I can post them here for you.

If you are not able to do the repair most shops are going to charge 300 or more for this kind of repair--all the parts usually needed can be purchased on Ebay for under 30 dollars.

If this information has helped you rate this solution as I do this here for free.


Dec 10, 2009 | Mitsubishi WS-73903 65" Rear Projection...

1 Answer

I want to know if you have to turn on the HD conponents cause i tried to use my xbox360 and thier is nothing on the screen. i already check the xbox360 wires and they are fine.

If you are using a high def tv and u want to play with hi def graphics, u must put the switch on the xbox av/component leads to HDTV, otherwise,standard def will be used. Check the tv input by using a dvd player or another input source to confirm it works. Good Luck.

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resolder the convergence ICs . Common problem with mitsubishi rear projections

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Check your manual, I have the same set and you need a
WD 5000 HD upgrade panel, I believe.
This TV is HD upgradeable, it is NOT HD ready, like you have
been told by other responder......

Jan 22, 2009 | Mitsubishi WS-55315 55" Rear Projection...

1 Answer

HDTV Reception

Yes , If  a  high definition device is connected to the tv then you can watch high deff tv.

Dec 21, 2008 | Mitsubishi WS-55313 55" Rear Projection...

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Replaced Convergence but pictures still display with double images

i went to converge my mitsubishi ws 73903 and the blue line wont go down to match the other ones

Oct 09, 2008 | Mitsubishi WS-73903 65" Rear Projection...

1 Answer

High Def.

If you are using the component inputs it will select 1080i automatically IF that is what it is being sent. Make sure your device (cable/satellite receiver) is set to 1080i. The TV recognizes 480i, 480p(progressive scan DVD player) and 1080i. It DOES NOT recognize 720p. Since it has no HDMI or DVI input it can't do HD DVD or "upconvert" DVD but it does very nicely with 480p/progressive scan.

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Hd ready?

On any High Def TV, the reciever you need for this set, which does not have a HD receiver in it, is half the equation. Most HD channels have some HD content mixed with SD content on the same channel. SD content on HD signal from cable or satellite tends to be slightly blocky due to the native signal resolution and the resolution of HD (1080i/p or 720i/p).

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