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The convergence circuit has failed in the tv. These are the big STK chips on the circuit board. It typically costs $300 to fix at a TV service center. Requires replacement of two STK chips, some resistors, some fuses and then re-alignment of the CRTs within the service menu.
If you have proper soldering tools and can download the service manual, it is possible to do the repair yourself.
If you do not have any electronic background whatsoever, I do not recommend a person to attempt it.
See my solution <http://www.fixya.com/support/t2795690-convergence_off_blue_line_only_vertical>.
You need to get to the service menu--it's been 4 years so go to AVSforum.com to turn off the different guns and get the better pattern.
At your risk:
To get into Service mode:
1. Turn your TV on.
2. For X81 or earlier series: Press MUTE on your remote and release.
2. For H80/H81/HX81 series: Press MUTE on your remote and release two times ("Mute" on-screen)
3. Press down MUTE on your remote again and hold. While holding, press the MENU button on your TV set's front panel. 4. Release both buttons.
5. An "S" should appear on your screen. Press MENU again on your TV.
6. Now you're in service mode. Channel Up/Dn - Scrolls through Parameters and Volume Up/Dn - Changes Parameter Value
To get into convergence mode:
Get into Service mode, then
Hit '7' to bring up the convergence grid.
Buttons 100, 0, and ENT control which gun you want to turn off (if you want to align the red to the green without seeing the blue gun and other variations).
2=up, 8=down, 4=left, 6=right, 3=change gun to converge, 5=converge that point.
To exit convergence mode you press 7 once and your screen should look like it's imploding then return to normal and then you press 7 to get back into regular service mode.
I have more info found on the board.
By the red being "off" I suspect you have a convergence problem and adjusting will bnot likely fix the problem. The convergence amps need to be replaced but if you email me I can send you the servoce manual... Just provide me with enough info in your mail, model number, because I get nearly 3000 emails a day and I won't likely remember what manual you're looking for...
Will send it out post haste... But be VERY careful inside the hyper module you can easily lift the traces when trying to remove the smd caps and ruin the module beyond repair...
Just send me a private mail and I'll return with the service manual.
Pico fuses could be through out the board... And the service manual, if it has a parts list, does give the board designation for all the picos on it...
Although these are good pictures they don't show a great deal of detail... But picture 1 & 2 at the far left, above where the two sets of blue wires are plugged in - looks like a pico piggy-backed on top of another pico... Sometimes it's easier than desoldering the original pico just to piggy back them in this fashion - but it's not a good practice.
Start there and read the designation on the board... Then look in the parts list section of the service manual and find the others by their designation.
How much electronic or solid state repair experience do you have. Can you read a schematic and follow circuit flow from one circuit to another? Do you know how to use a multimeter? If you say no to one of these, this is not the repair for you. If you say yes, send the service manual to firstname.lastname@example.org and I will take a look. Good Luck