소개
The RCA R52WH74 was an entry model projection TV, sold mainly by places like Walmart and other department stores. This particular series was plagued by poor solder connections, bad connectors and bad components. The repair is straight forward and relatively inexpensive. The size of the TV makes it easy to work on but difficult to haul to a repair shop
필요한 것
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Here is what it looks like when the convergence is off.
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Remove the seven screws from the back.
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Remove the two screws from the left side.
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Drawing of the connectors on the Power Board
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Remove all the cables from the power board. Each cable does have its own distinct connector and will not fit into another connector. This will make it easier to re-assemble the chassis.
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To remove the flat ribbon cables from the BL111 and the BP005 connectors, just pull straight up on the cables. Hold the cable close to the connector end and pull straight up. They are compression connectors and have no clips.
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The power board is held to the plastic chassis by 8 plastic tabs on the perimeter. Push those away from the board and toward the plastic side.
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Continue to lift until the last of tabs has been cleared.
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With all the tabs cleared move the board out of the plastic chassis and slightly to the left. There should be enough room with the Fly Back Transformer cables still attached.
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With the board cleared of the chassis, this is the area that contains all the components that are to be replaced.
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Replace the components by guiding the legs through the holes in the board. Bend the legs to the side to keep the component in place. Solder in the usual way.
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After the component is properly solder to the board, cut the excessive length of the contacts with a pair of side cutters.
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The only other thing I recommend is to either reflow, or resolder the flyback transformer contacts. The ones on this board looked like they may have gotten hot.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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댓글 6개
I changed some Capacitors on my TV after it was done my convergence were out of wack. When I tried lining up the colors from TV settings it only corrects my right side. Before I changed my Capacitors the picture on my TV was excellent. What should I do?
i replaced all 3 parts and for some reason i still have convergence issues. help please!
I want to replace the entire deflector board (FSB 260), flyback and all included. I need to remove the red wire where it plugs into the CRT tube ( I assume that's where it ends). Do you know if I can easily access that spot where it connects under the tube to remove it?