Question about Samsung HC-R4755W 47" HDTV

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Picture is blurred

How do you manual adjust the convergance and should this be done

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If it's a projection tv, setting the convergence is normal and necessary sometimes. Go to the menu setup. You should find an option in there for setting the convergence. It's basically just lining up the cross-hairs (+) of all 3 colors so the picture is not so blurry. Just make sure you set all of them that you see on the screen. They all should be sitting on top of each other. Hope this helped you.

Posted on May 24, 2009

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Sony 40xbr800 blurred picture


Convergence is almost impossible to adjust on this model--it is all manual. If you have a purity issue---bloches or screen not uniform color you may have a damaged shadow mask in the crt.

There is very limited convergence adjustment in this model.

Has set be moved or shipped recently?

Mar 14, 2012 | Televison & Video

1 Answer

Not a clear picture


CRT projection televisions need periodic maintenance to maintain a clear picture. Typically, to maintain a sharp picture, they require cleaning and alignment every two or three years. If the television is being used in an environment where there is cigarette smoke or other smoke sources, the optics inside the television can become dirty and cause the picture to blur. Additionally, CRT focus and alignment wander over time, or physical CRT alignment can be knocked out if the set is bumped or dropped. All RCA CRT projection televisions have an "alignment" or "convergence" adjustment in their adjustment menus, which are fairly simple to use. The convergence feature is usually accessible from the main menu of the television. Check your User's Manual for the procedure to touch-up the convergence adjustment and see if you are able to achieve a sharper picture. If the optics in your set have not been cleaned for several years, or if it is in a smoky environment, the picture will be blurry and usually a brownish color, In any case, since the set is several years old at this point, it's likely due for a cleaning. This is best done by a technician, and mostly involves physical cleaning of internal lenses, the refractor mirror on the back of the chassis, and the back of the opaque display screen. An adjustment of CRT bias controls and individual CRT focus adjustments will bring further improvement in the image sharpness and clarity.

Jul 08, 2011 | RCA Televison & Video

1 Answer

Colors are separated red, yellow and green so picture is blurred


lgray1010,

Try using the Flash Focus to/or manually try to dial in the convergence. If you are unable to focus the TV using its convergence adjustment it's time to call the TV repair guy. Figure on between $250.00 and $400.00 USD.

-Chris

Aug 24, 2010 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Just the blue on my rca projection tv is blurred. on the auto convergeance it says it cant read the sensor. on manual the cross hairs for the blue are oversized and blurred. i tryed tuning in the focus but...


Have you try adjusting your focus/screen drive controls to Tube R/G/B you have a focus/screen drive control block to adjust each Tube 3 controls ontop 3under them top ones are for Focus bottom is for screen drive.Red/Green/Blue Tubes.You might need to replace convergence IC, what is your Model number printed on back of TV?

Mar 24, 2010 | Televison & Video

1 Answer

The convergence red and green will not adjust making picture blurred. It looks like your looking at 2 pictures laid on top one another on a convex screen. Someone told me I may need a convergence chip......


Common convergence problem,both convergence amps need to be replaced and the 2 B+ fuses checked also all the fusible resistors around the amps, it should use stk392-040?

Mar 22, 2010 | Akai PT5598HD 55" Rear Projection...

1 Answer

Poor picture quality, the picture is blurred and


You have problem with convergence. Have you tried adjusting in the users menu. This is a common problem in this type of TV, usually two convergence amp need to be replaced and sometimes sets of resistors are also to be changed.

Mar 02, 2010 | Sony KP-43T70 43" Rear Projection...

2 Answers

Top left side of picture blur


You may have to clean the crt's and lenses and the mirror. Unit may need total convergence from the service menu. If image is blurred in only one area like the corner I would suggest NOT to adjust the electrical or mechanical focus.

Aug 31, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

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...

2 Answers

Blurred picture


try the focus adjustment knob on the back of the flyback transformer....if that does not work...order a focus block

Feb 03, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Hitachi 43fdx20b blurred Picture


Yes this is a normal diagnoise. Just about every Tube type projection TV set ever made will one day need these IC's replaced. They are not really that hard to replace but you would need to know how to solder and unsolder on printed circuit boards, know the procedture, and then have a service manual handy to adjust the convergence after yoou replaced the IC's. If the tech works on alot of these types of TV sets's, most likely they could adjust them without having a service manua handy. This repair done by a pro should run you anywhere from 250 on up to 400 bucks depending on who does the repair and where. Good Luck

Mar 31, 2007 | Hitachi 43FDX20B 43" Rear Projection...

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