Question about JVC AV-48WP30 48" Rear Projection Television

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How do i adjust screen size on a jvc 48 inch tv without remote?

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MALCOLM HOUGH

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Go through menu untill you find screen page and change aspect ratio setting use up and down volume to change it

Posted on Aug 23, 2014

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3 Related Answers

Anonymous

SOURCE: cleaning JVC rear projection screen (behind cover)

You will have to do some dissassembling of the cabinet to remove the screen and bezel assembly. If you are will to do this I can give you the directions.

Posted on May 11, 2008

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Anonymous

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SOURCE: my 48 inch jvc tv has a green color to it what can

Okay so the green color that you see on the screen is because the coolant inside of the green picture tube is gone bad (it suppose to be cristal clear but now it is brownish and that makes the green color run all over the screen.) That just happens over time and I'm guessing the picture tubes have never been serviced. Now you got two choices
1- The easiest and fastest way would be to take it to a local repair shop and have them service the coolants of your picture tubes. I'm guessing it would run you about $165 or so to get them done (the three of them red,green and blue)
2-On the other hand you can do it yourself. It is not hard at all but it does require a lot of attention.

After the picture tubes have been serviced you'll notice the big difference.
You'll actually have a much brighter and sharper picture just like when it was new.

Let me know if you decide you want to do it yourself so i can post the instructions for you.

Posted on Aug 24, 2009

SD Tech

SD Tech

  • 14553 Answers

SOURCE: JVC 48 inch rear projection tv with 2 spot in

yes, I know what is wrong and there is a simple way for you to confirm this.

Have you ever seen a TV with just a white line across the screen from left to right? On a regular TV if this happens and you leave it on long enough it will burn the mark into the screen.

I suspect what you have is two of the picture tubes in this projection TV have a burn--it is caused because the set lost either horizontal or vertical sweep--picture either closed from left/right or top to bottom for a moment and then came back on instantly---burns a mark in one or more of the 3 tubes screens.

Way to confirm is simple--with the back cover removed cover each lens one at a time with the set turned on--be very careful when you do this not to touch anything else---

if you cover a lens and one of the marks goes away that tube is burnt----my guess is you are going to find at least 2 of the 3 tubes are burnt on the screen---

Problem here is the tube or tubes need to be replaced to correct this AND whatever caused this HAS TO BE FOUND ALSO OR IT WILL DO THE SAME THING TO THE NEW TUBES--


CONSIDERING the cost of two or more replacement tubes you are most likely better to buy a new TV---I have seen about 100 sets with just exactly what your are describing---It does not happen a lot--but once it happens the damage is permanent.

I know I am not giving you good news but I am sure from your description this is what has happened.


Sorry to give you bad news---see for yourself if you cover each lens one at a time--if you do this and the marks are gone you know exactly what has happened.

IF YOU HAVE ANY QUESTIONS OR NEED MORE INFORMATION--let me know here--I am here to help but cannot always give good news.

SD TECH

Posted on Oct 07, 2009

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U have the tv original remote wright?Yes?U must have the tv original remote to do any adjustments to the tv for a screen sizes pictures.Look at the tv original remote carefully for any buttons on the tv remote like Aspect Ratio,Zooming - +,Picture,Picture size,Display,LCD Mode,VIEW MODE.Pushes one of these buttons a couples times to choses the correct pictures sizes for ur tv screen or what u wanted to be.

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My color are dropping down amd there is a doulbe images on the screen


try to adjust your convergence setting in your remote if still does not work replace your convergence ic the one with stk printed its usually 2 to 3 inches with 1 1/2 in height it has many pins and connected to a heat sink.

Oct 19, 2010 | JVC AV-48WP74 48" Rear Projection...

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If it has been moved or bumped recently the sound you are hearing is the main HT lead that has been displaced. TGhis is a blasck lead with a rubber disk surround at its end that fits into the picture tube. Do not touch without turning TV Off and using rubber gloves to reinsert.

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Aug 24, 2009 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Color convergence drops on left side


Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Mar 13, 2009 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Cleaning JVC rear projection screen (behind cover)


You will have to do some dissassembling of the cabinet to remove the screen and bezel assembly. If you are will to do this I can give you the directions.

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Convergence


Have someone replace the convergence amplifiers

Feb 28, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Green bent line on 48 inch jvc


Check for a burnt resistor on the convergence circuit board. This is usually what happens when the green gets distorted as the green is not adjustable only through the service menu so its either a burnt resistor or a leaky capacitor. Resistor is far more likely. Let me know if you need any further information.

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you can see the diagnostic menu in jvc as you press both at the same the display and the picture mode buttons

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