I have a Samsung HCM5525W 55 IN. projection TV HDTV 1080 i,I think the convergence needs to be adjusted,but I cant adjust the red convergence only the blue convergence,why is that?

TRY AUTO CONVERGENCE

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. This is called convergence.

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,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link 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 - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set 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 using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

• Screen Looks 3D
• Colors wont align
• Video may look distorted

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

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

There is a manual focus adjustment above and between the red and green gun, located in the front of the TV behind the panel; It is a small black box about 3X3" . This has all three adjustments .

This is a convergence problem. It happens to all big screen rear projectors. The convergence output ic's need to be replaced. I would let a repair man do this.

its the convergence problem in your power supply board

please check out this links

for convergence board ics reparing it your self

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

and for convergence settings

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

thanks.

If the new sub board didnt fix the problem you will need a new convergence board as the sub deflection boards with the ICs only powers the convergence board. thats a complete seperate board. Let me know if you need more assistance.

You may have a open resistor on your convergence broad, it also has 3 pico fuses on that broad and 1 of them also could be open.

This seems to be a convergence failure on your TV.
If you have hand basic soldering skills and a soldering iron, this might be something you can do.
Check this link for the parts you need.
Goo Luck.

The Samsung has bad convergence IC's most likly. This should be repair ONLY by a trained technician as a TV set is not a place to experiment or tinker with because of the extremly high voltage inside. This repair should cost you in the range of 250 to 400 bucks . Good Luck