Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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Red and green Shadow on right top half of screen

I tried adjusting it with the covergence option,but it's not adjusting itself. Can you please help me with a solution to my problem.

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  • k_risty09 Mar 26, 2008

    Is this a problem with the bulb or is it the projecter?

  • Nickitty Apr 14, 2008

    Iv had my tv 4 years and lastnight I turned it on and the red jumped to the right. I called jvc help line. They told me that the red might need manual adjustment by a profesinal or the bulb is going bad. Bulbs are $320.00

    Quite a normal problum it seems?

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This is caused by failing convergence ic's. They take the image from the three picture tubes and align them so that one picture is displayed not three. They are the two large ic's on the biggest heat sinkRed and green Shadow on right top half of screen - 1.gif in the front of the tv, but changing them can be tricky b/c resistors feeding voltage to those chips may be bad to. It is a simple repair to a qualified technician but a major headache to a novice. It is economical to repair but I would leave it to the pro's. Hope this helped.

Posted on Apr 02, 2008

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We got a free hitachi projection tv that i believe has a bulb malfunction. on the left half of the screen has a red shadow we cant afford a hundred dollars for an estimate then whatever the price of the...


You might need to adjust the red screen drive control, turn the Red down and see if that clears it out. Sounds like the Red Tube is over driving the Green and blue Tube.
Find the Focus and screen control block there will be 3 controls on Top 3 right under them R-G-B they adjust the Focus to each tube and screen drive for each tube. also you need to clean the lenses off top of each tube they get dirty and dusty and it would help to clean the mirror

Sep 13, 2010 | Hitachi 53FDX01B 53" Rear Projection...

1 Answer

On left half of the screen [ KP51WS510 ], a redish shadow showing


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV2_bing.gif may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 07, 2010 | Sony KP-51WS500 51" Rear Projection...

1 Answer

After a half hour of operation, the picture begins to shadow.


These sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks Distorted/3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking screen
  • White looking sceen
  • Halos around objects
  • Red/Orange looking

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 07, 2010 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

Red Halo persists after coolant replacment & Converg. Adjustments


If you bought a kit with instrucitons contact the company you purchased it from. They will help.

My guess is that you did not change the fluid in the blue and green tubes. You may have accidently done the red instead.

Mar 07, 2010 | Televison & Video

1 Answer

Mitsubishi TV Model #WS65903 - Green Shadow Lines on Screen


Something is not right here--The green is adjustable in the TECH menu--did this person adjust or try to adjust in the customer or the TECH menu?

If you confirm actual model number I can tell you how to get into the TECH menu--yes--green will not adjust in customer menu--it determines geometry and is only adjusted in the TECH menu.

Also, this set requires any convergence adjustments to be done in 480 and then in 1080--if only adjusted in one mode the other will still be bad.

Let me know if you know how to adjust in TECH menu or not--with exact model number I can tell you how to get there.

If this helps you rate this solution as I do this here for free.

SD TECH

Dec 20, 2009 | Mitsubishi WS-65809 65" Rear Projection...

2 Answers

RCA 56 inch hdwidescreen


Did you use the Automatica Convergence to try and straighten it out? If that does not help, you can manually adjust the convergence.

Jul 12, 2008 | RCA HD56W58 56" TV

1 Answer

Convergence off on top and the 2 side right and left


You need to check all the convergence resistors out of circuit 1 or 2 are most likely open and need to be replaced. You can get the service manual and free tech support at this link .
http://servicemanuals.vstore.ca/

Apr 16, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

RED AND GREEN DOUBLE AND BLUR PICTURE HELP PLEASE


You have a convergence problem. Components are shorted out and must be replaced. Unless you're a technician, there's really nothing you can do at this point.

C-Dog

Feb 03, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Double image - not covergence


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Nov 21, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Jvc av56pw74 blue shadow


You are going to need a full convergance alignment to rectify this issue.

Aug 09, 2007 | JVC AV-27720 27" TV

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