How do i fix a color alignment problem? - Hitachi 46F500 46" Rear Projection HDTV-Ready Television

dear friend
how much life pending in image transfer belt
check first

This can fixed by servicing it.

Convergence adjustments are made by aligning the Blue and Red to the Green... Make sense? Green does not move, it is the fixed point by which the other 2 colors are to be aligned to.

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

Problem #1) Convergence

Symptoms:

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

Problem #2 CRT Fluid has clouded over. Symtoms

• Dull looking video
• White looking video
• Halos around objects
• Red/Orange looking video

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

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

For alignment complete you need both print cartridges printing all colors.If you have empty cartridge or clogged cartridge alignment will not complete.Look which color missing and replace cartridge.

when is the last time you changed your color ink cartridge?
that is what it sounds like to me if you have already did an alignment and cleaned them

This means one of the cartridges is defective, they cant align if they cant print.  What i did to fix this problem is insert 2 working cartridges and get it to align properly, even if they are low on ink, then lift the cover and the cartridges will move to the center.  When this happens pull the power cable out, then insert the full non functioning cartridge. Plug the power cable back in.  I tried this with a color cartridge, the color cartridge was non functioning but i was able to print in black.
Basically you align the cartridges and then swap them so the printer thinks they are still aligned.
The color still doesnt work and it is probably a defective color cartridge.

You can also bypass the alignment. When the message for alignment displays on the display => Press Setup and Options (or Copy Options ) simaltanious.The last known alignment is used when the alignment is bypassed.

If the color cartridge doesn't print the color bars on the alignment page (either, redish pink, yellow or blue) then the alignment process will not finish. Same for the black. If the black cartridge is printing ok, then replace the color cartridge and try this again...

Each color (red,green & blue) has an amplifier IC (STK-).
When there is a convergence issue,the first step is change both
IC's for reliability. Then check for open fuses devices,usually
pico fuses.Then re-check convergence alignment.......T.