Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Won't work in 480i or 1080i mode

My tv is around 2 years old and it will not work in 480i or 1080i mode on HD. However, it works perfect in 480p mode with native off. Let me explain the symptons a little better. When I set it on 480i I get a "no signal" message. When I set it on 1080i mode the picture looks like a 3D movie without the glasses and the picture is skewed a little. The problem seems to have started when the power went off one day. I have Directv with the HD100 converter. I use and HDMI cable but get the same results using composite, etc. I have a newer LCD HDTV which works perfect in all modes with this same Directv HD receiver.

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Re: Won't work in 480i or 1080i mode

I think Bluenadas is right that it's the digital board. To be sure, I would suggest opening it up and looking for any bad capacitors. Those are small round things sticking out of the board. If they are bulging or leaking anywhere, that's your culprit. Replace the board they are on and you should be fine. You can purchase boards for this here: However, unless there is something visually obvious, like the bad capacitors, it's going to be difficult to be 100% certain that the digital board is to blame without replacing it.

Posted on Aug 30, 2007

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Re: Won't work in 480i or 1080i mode

Have you tried a different input like a DVD to ensure the issue is with the TV? If the issue is indeed the TV then replacement of the video card (Or digital board) is warranted. If there is a separate board with all of the video inputs on it that would be the video board. If the main board in the unit has the video connectors on it, that is the digital board.

Posted on Jun 08, 2007

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If anything were bad with the lamp or ballast, the TV would not have a picture, and would shut off in 30 secs. I think on these component 1 does not run HD inputs--only 480i +480p (progress. scan DVD). Component 2 runs up to 1080i HD but not 480i SD, I think. Your no sound must be something else.

Oct 18, 2014 | Projection Televisions

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Mitsubishi VS-60805 Rear Projection won't operate in HD mode with Cable Box

Since this is an older first generation (1999) HD TV it may not be compatible with newer HDTV receivers because the standards back then were different - Make sure the HD cable box is plugged into the HD component inputs on the back of the TV (not the DVD inputs) and that the menu setting on the TV is set to DTV (not RGB) video. This TV will only accept 480i and 480p signals on the DVD input. Also the HDTV input will only accept 480i,480p and 1080i (it will not work with a 720p signal,make sure your cable box is not set to that mode)

Aug 17, 2007 | Mitsubishi VS-60805 60" Rear Projection...

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How do i get 1080i, my tv shows im only in 480i. i think i might have it hooked up incorrect. my other tv of another brand is much newer so all i did was connect the hdmi cable from the tv to the cable box...


Your TV will display all High Definition signals as 1080i True HDTV™ and all standard definition signals will be displayed as 480p.

Component Inputs 1-2
These inputs can be used for the connection of A/V equipment with component video outputs, such as a DVD player or external HDTV receiver. Please see Appendix B for signal compatibility.
Input DTV (480i/480p/1080i)
This input is used to connect an external DTV receiver, and can be configured for YPrPb and RGB plus H&V signal types.

As a special feature, you have the ability to adjust the red and blue light beams in reference to the fixed green light beam. This process is called convergence. There are two separate memories for convergence. One, for SD 480i/480p signals; the other for HD 1080i signals. SD convergence should be adjusted while watching an SD source and HD convergence should be adjusted while watching an HD source.

Wide Expand: Enlarges the picture, cropping some of the image on both sides. This Expand format is useful to remove or reduce black side bars on HD broadcasts of 4:3 images with black bars. Available for analog 1080i, digital SD 16:9 and digital HD signals.

This input is compatible with most standard DTV and satellite receivers with component video (YPbPr) outputs. Compatible DTV signals are SDTV 480i/480p, and HDTV 1080i. All other DTV signals, such as 720p, need to be converted by the DTV receiver to one of the compatible signal types. Please check the DTV receiver specifications before connecting.
This input is compatible with some DTV receivers using RGB with "separate H and V sync". Compatible DTV signals are SDTV 480i, 480p, and HDTV 1080i. All other DTV signals, such as 720p, need to be converted by the DTV receiver to one of the compatible signal types. Industry standards for DTV RGB signals (systems, synchronization, timing, and signal strengths) are not currently established. These inputs will not be compatible with all DTV receivers that offer RGB, HV outputs. RGB, HV signals with less than 5 cables are not compatible.
If your DTV receiver offers both DTV component video signals and DTV RGB, HV signals, we suggest you use the DTV component video signals. Check the DTV receiver specifications before connecting.

Feb 05, 2011 | Mitsubishi WS-73909 73" Rear Projection...

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Mitsubishi WS55513 480i Signal no Color

That may be a TV problem but can also be a Cable box problem.Do you have any other 480i signals hooked to the TV?
Also most Comcast HD boxes can be set to output SD signals at 480p which may solve the problem. Usually get to the setting by turning the cable box off and pressing menu on the box, not remote.
It should display a different menu on the tv screen, arrow down to 4X3 overide then arrow right and try 480p.

Feb 04, 2009 | Mitsubishi WS-55513 55" Rear Projection...

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grab your TV remote and go to setup. check your input settigs and change them from RBG.

Aug 30, 2008 | Mitsubishi WS-65413 65" Rear Projection...

1 Answer

HD tv with the mitsu

Well if your refering to the right tv (check your model number) then this tv only supports 480i, 480p and 1080i. Ive never seen anywhere that it supports 720i.

The component wires should include three lines for each corresponding color, red green and blue, and finally white and red for left and right audio. I think that is what your refering to.

If everything is right, it should work, the fact your seeing green could be a number of issues... maybe its a direct tv box issue?

Apr 03, 2008 | Mitsubishi WS-65807 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.

Dec 24, 2007 | Mitsubishi WS-65311 65" Rear Projection...

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Certain HD settings won't work

no the set uses only two settings in the Y, Pb,Pr which it swithes back and forth. when a 480i,480p SD singal is detected it will switch to 480p, when an HD signal is detected it swiches to 1080i. when it swiches the picture scrambles for a second or two. to correct this in your cable box (if it's a motorola box) leave the tv on, press the power button on the box to shut down the box. next press the menu button on the box and the internal menu will show. use the cursor buttons on the box to select "480i overide" use the arrow to the right to select "streached" them hit menu to get out. hit the power button to turn the box back on.

Dec 16, 2007 | Mitsubishi WT-46809 46" Rear Projection...

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Grey Screen with 480p signals (or higher)

I've had a KP 53HS10 for close to 8 years I think. 4 years ago the picture started blinking after long use, then more and more often. I had a repairman come and replace the tuner card (that's all I know about what he did). Now that I finally have HD from cable, I've found that 720 doesn't work and 1080i works, but the picture blinks on and off apparently struggling with some inner problems. Everything looks great, for a second and then it blinks. The red light blinks 5 times repeatedly while this is going on. I called SONY 5 times means get a repair man. I searching forms like this for help as well.

Nov 18, 2007 | Sony KP-53HS30 53" Rear Projection...

1 Answer

No HD 1080i

have you got the slider switch at high definition and not TV at the connecting end at the xbox that leads to the tv input

May 21, 2007 | Mitsubishi WS-73411 73" Rear Projection...

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