57" Toshiba with wavy green/red lines "good overall picture"
The other day after watching some tv, there were red lines going horizontal across the screen, i tried to converge but the color's are lined up, 2 days after i noticed its now red and green ... the lines are coming out of the bulbs as i checked the mirror and screen and looked inside the bulbs, the lines kinda go in a wave, each color in its own line .... blue doesn't seem to be doing it ... the picture quality is just fine, its just the lines across the screen really ....
Re: 57" Toshiba with wavy green/red lines "good overall...
Appears to be a convergence problem,
the chips are located on large aluminum
heat sinks. Check near the 2 or 3, STK IC's for
+ and - voltage usually 20 to 25vdc.
If 1 or both are missing, check microfuses.
They should both be close to equal in
voltage reading, if not, turn set off after it has been on for 10 minutes, feel the heat sinks at each IC,if one is hotter than the other,
replace both IC's or all 3 if it has them.
Now check the small low ohmage resisters in
and around the STK IC's and you will most likely find a few burnt or discolored and have
changed in value, replace these or the new chips installed will self destruct.
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It appears that you may have a green drive issue. Try adjusting the Sreen Control it is located in the front of TV.
1) Remove Speaker Grill (it just pulls off) start at one end, 2) Remove cover (5-6 screws), 3) Adjust control. The control is located on lower right side towards bottom. A small black device with 2 rolls of controls, adjust the center control on bottom row counter clock wise, until you get a black and white picture.(adjust with color control to min).
If this does not work you light bulb (CRT) is bad about a $750.00 repair.
Check out this site. These TV's are known for the CRT's going bad. This site shows how to make adjustments that could help extend the life of your set. Take a look at the first picture, if the lines look like the ones in the picture this site "should" help. The picture shows a problem with the red but don't worry about the color, look at the lines. I hope this helps.
Typically this is a convergence problem and can be repair relatively easy. Refer to this video to determine if you truly have a convergence problem. Also make sure you use your TV's original remote to make this adjustment.
Are the wavy lines horizontal or vertical? If they are horizontal and up near the top of the screen it could be 60HZ interference from a power cord running over the cable from the DVD player to the TV. There could also an internal breakdown of the shielding by the power supply of the DVD player. If the lines are vertical it is likely the cable or maybe the input jack on the TV. Could be a number of things.
This sounds like you may have bad picture tubes. Most likely the green and red tubes. You would have to have them replaced and realigned. I would call a Sony ASC and get an estimate to verify this. An onsite service call could verify if this is what's causing your problem.
I gather from your post that wavy can mean two possible things as the TV comes on, you see the picture flow like ocean waves? In this case you may have 60Hz hum modulating with the picture, this is actually unlikely these days, but I have heard it happens sometimes.
The other thing it could be is light horizontal tearing. This happens when the horizontal frequency is too high or too low. You are not going to like my solution because I feel that for problems like this the set must be analyzed not just subjected to "shotgun troubleshooting", so here I go, Take the TV to a repair shop.