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Convergence replaced convergence chip and resoldered tower...convergence fine on tv portion...watching tv its fine. the problem is that svideo..composite and dvi stilll have convergence issue. is there a seperate board or fuse or chip that would cause this? will try to manually set covergence again. any help is appreciated

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  • Master
  • 8,617 Answers

Sounds like your talking about an RCA HD rear projectio n if so the convergence defaulst will all have to be set and saved for each format. I can assist with info on how to do that if you send me a email to slinteriors@yahoo.com I can email the instructions they are too large to post here properly

Posted on Jan 02, 2013

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6ya6ya
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Posted on Jan 02, 2017

johnnydiode
  • 647 Answers

SOURCE: Replaced the fuse in RCA R52wm24 and resoldered

The fuse blows when there is aproblem with the convergence board - if the TV just had issues with the convergence b4 you soldered and replaced the fuse then the set should not be dead - I would check all plugs especially the 2 flexible (short) cables that jump the (ssb) two boards together. Do you hear the HV trying to start (a little chirp sound near the flyback) If so the set is in shutdown mode if not then power supply problems are usually the cause - check for swelled capacitors in power supply.

Posted on Oct 06, 2009

Testimonial: "Amazing how you can pinpoint an issue by reading text from someone who has no idea what they are doing! Great job! It was one of the two flimsy cables"

ladywinn
  • 5138 Answers

SOURCE: R56WH78 RCA TV FlyBack

Resolder all the pinns on the FBT chances are FBT is Bad they go out alot Call UED for Parts 1-800-648-6657

Posted on Nov 13, 2009

Ecollier2012
  • 3459 Answers

SOURCE: "convergence chip failure"

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 TV 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

Posted on Apr 03, 2010

  • 4 Answers

SOURCE: WS-55909 convergence problem turns now into F9A04 Fuse issue

I had this happen on my WS55909 about 2 years ago. I dont remember what the circuit id's for the fuses were, but out of 6 fuses on the middle board, the two in the middle were blown. I traced the circuit schematic and found that only the convergence IC could cause these fuses to blow. It sounds like you already put in a new convergence IC (the one with the big-*** heat-sink which probably also needs a fan) but you need to make sure all those fuses on that board are still good. After I replaced that IC, my TV still didn't work. I went and double checked for continuity of all the fuses on that board and one was blown (after checking all of them and replacing the IC). Replaced it and the TV has worked ever since. Total repair cost was 23 bucks. Professionals recommended that I would be better off just buying a LCD TV than fixing my rear projection TV, but I still dont think you can get one of those as big as 55" for only 23 bucks! ****. BTW, mitsubishi would probably tell you otherwise, but you don't have to use those "littlefuse" fuses. I soldered in a fuse-holder for a glass fuse of the same value (5amp 125v in my case) that can be purchased at radio shack. A fuse is a fuse. My TV never burst into flames.

Posted on Apr 09, 2010

electronick
  • 505 Answers

SOURCE: SONY KP-65WS510 TV LOOKS LIKE TYPICAL CONVERSION

there are fuses on each driver (6 in all) under the heatsinks usually.. make sure these are good. there are also 2 5amp fuses on the g board that supply power to the chips + and - 24volts.. check both of these.. i've seen some check good in circuit and still are bad, check voltage to see for sure. In a rare case, i knocked off a small surface mount resistor when unsoldering the chip, and then the convergence was muted.. make sure no small surface mount parts were moved on the bottom of the board when you soldered. good luck, let me know wif you need futher assistance.

Posted on Jun 19, 2010

Testimonial: "I APPRECIATE YOUR ASSISTANCE. IT GOT ME IN THE RIGHT AREA, THE FUSES WERE GOOD, BUT THERE WAS A BURNED SOLDER RUN COMING OFF ONE OF THE FUSES. THE SET WORKS GREAT NOW. THANKS FOR YOUR HELP."

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