The picture is sharp, convergence is good, color is good. the picture is slightly compressed in the center. The black is curved ) (, about 4 inches top and bottom and about 6 inches in center. The chasis is an RCA CTC187CL3 , THE MODEL IS F32672SB.
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If you're good at soldering, Part #s STK392-570 may both be bad. If you tap on it and it works. Pull out the board with the 2 chips, (mark all the connectors) with the TV off. Replace these. You can find them on Ebay (at least to see what they look like). First go to the spot under the board where both of them are and resolder each pin avoiding bridges. Also resolder all the spots that you see the plugs you labeled at. With the TV on using one hand, with one hand in your pocket, carefully physically feel the metal heat sink the parts are connected to. If they are cold, you probably have bad fuses. They are usually beige. With the T.V. off and a meter, check these for continuity.
The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?The tv convergence board is dead.The tv convergence board reqiured changes it 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board problems to solved the tv picture convergence picture problems.The shop,will cost like $300-350 for parts and labors.
Ur tv have a convergence problems,it dead.U must have soldering tools,solders and know how solders to fix convergence problems.U must replaced 2 STK convergence ICS,and some or all it resitors.Tries websites like Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.
These procedures are from the owners manual, go into menu and then picture quality and then:
The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’
images are precisely aligned, they create the color images you see on the screen.
Over time, the picture can drift out of alignment (this is normal). If your picture
seems fuzzy or has a yellow tint, using Convergence could correct this
misalignment. Only one convergence is needed for all inputs, regardless of the
Note: Make sure the TV has been on for at least 30 minutes (TV needs to
warm up for best results) before starting Auto Converge or Red/Blue
When you select the Convergence feature, a submenu appears with three options:
Auto Converge Automatically aligns the projection lenses to self-correct
color images. You’ll see flashing squares of color dance across the screen
(this is normal).
Note: After performing auto convergence, use the Blue Centering and
Red Centering menus to fine tune convergence in the center of the
screen, if necessary.
Blue Centering Aligns the blue and green images to fine-tune the picture.
Red Centering Aligns the red and green images to fine-tune the picture.
Note: The ability to change channels is disabled when adjusting the
convergence options. The TV must be tuned to a usable signal to
converge the picture.
HI ,USE A PATTERN GENERATAR DOT OR LINES TYPE AND USE THE CONVERGANCE RINGS BEHIND THE YOKE OF THE SET ,THERE ARE THERE RINGS FOR EACH COLOUR RED GREEN AND RED .SLIGHTLY MOVE THE RINGS AND U CAN SE EIN THE PATTREN THE COCLOUS WHICH IS FRINGES EACH BY EACH U ADJUST ALL THERE RINGS FOR PERFECTION , FIRST LET THE SET BE SWITCHED ON FOR 1 HOUR AND THEN DO THE ADJUSTMENT. THANSKS
You need service. Sounds like the convergence is out of adjustment. As the picture is formed by a tri- gun arrangement (one for each colour), if any of them is not correctly aligned, you will see shadows on any sharp line like text, or blurring on a picture. The shadow or blurring will often be one colour i e. red, blue or green.
easy way to adjust the convergence is, first off blue back option. Then check snow on the picture., if each snow carries any color on side. adjust convergence till color disappears. take long time but it is very easy no need other equipments
sounds like an intermittant connection on the convergence IC'S or the vertical sweep curcuit. I would advise that you seek to have this fixed as soon as possible as tapping on the side can and will cause other problems in the set.. I would also advise that if your not an experienced tech take the set in to a repair shop. Good Luck