CTC195K3- need to replace the transformer part #111239
How do ir emove the powerboard from the bottom plastic housing? i removed the push pin in the center of the board and am able to slide the board from the plastic housing only a few centimeters up and down. how dod i fully slide the board from the plastic housing without damaging the plastic bottom housing? Thanks
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Re: CTC195K3- need to replace the transformer part...
Remove back, black, plastic panel. The board is removed by pushing the board back, plastic part towards you. BE CAREFUL and not break PC, some times they get stuck. ALSO, release the clips on both sides of black 'frame'. Look on both sides and you will see two little TABS sticking up, pull up and pull frame towards you. Good Luck, big IRISH.
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Hello, to replace the ir sensor, unplug the set, remove the speaker cover on the front, remove the screws around the plastic push button assembly, carefully remove the wire connections (plug connectors) off the assembly and remove the screws on the back side of the board and remove the board and replace it with the new assembly, re install the screws on the board, attach the wire connections and re mount the push button assembly and replace the speaker cover....tks
the wires pull out but a better way to do this is with everything else out lift the board up so bottom faces rear of set--be careful when soldering at the chips a quite a number of surface mounted parts near the pins on the STKS.
One of the most common issues on these models are failing solder connections on the high voltage transformer. If you or someone is comfortable resoldering, this is not a very complex task. The back requires removal of torx type screws, once that is removed the high voltage transformer is located on the board on the left side and it has a thick red wire coming out of it. Getting to the bottom requires taking the board out, but also requires disconnecting connectors and plugs on it and removing a few screws that hold it in. With help you maybe alble to turn the TV on its side to get to the transformer. On the bottom of the transformer there about 12 pins in circular formation that have solder on them. Specifically look at pin 11 as it will most likely have a cracked ring of solder around it. The secret to resoldering is to use solder wick to remove the solder thats on all the pins then resolder with new 60/40 solder. The issue was the original solder is lead free and after some use it develops cracks in it. The 60/40 has lead so this is why its important to remove all of the old solder first. Good luck ; )
If by saying that the color went bad you mean that the three colors won't line up or converge properly. Then maybe I can help you. What you need to do is to remove the rear cover and disconnect all connectors to the deflection pcb. Carefully remove it by pressing the retainer clips around the edges back while gently pulling up on the circuit board. Once removed from plastic frame you can flip the board over and start soldering. Solder all pins of the high voltage transformer and any grey rectangular capacitors that are around it. Also, replace the two green capacitors in the power supply if the top is bulging or domed. Next there are three small brown fuses next to the transformer. The middle one is probably open. It is a 400 milli-amp fuse and can be replaced with a 1/2 or 1 amp fuse. Make sure that you resolder the pins of the grey capacitors located between the metal heatsinks near the transformer. If you don't resolder these connections you may have to dispose of the tv when the solder works its way free. This is good free advice and will fix the problem if followed carefully. Contact me if you need any other help. Good luck, Russmann.
There are several common failures on this model that can cause that symptom.What I usually do is first look for capacitors in the power supply that have vented(expanded and are bulged out at the top).The ones I usually find to fail are located around the heat sinks near the power cord input. Then I check the horizontal output transistor for a dead short.Which is continuety or low ohms reading between collector(middle leg) and emitter and base(two outer legs). If the horizontal output is shorted, you probably have a bad flyback transformer. This is a very common and inexpensive repair. Next I would remove board by releasing several plastic retainer clips surrounding pwr/defl pcb and test the three pico fuses located next to the flyback. Also I check the flyback transformer for cracked or cold solder joints around it's pins on bottom side of board. One of these tests should get you to the source of the problem. This is good free info. Good luck, Russmann.
Hi, pull off the plastic cover just below the bottom of the screen, remove the phillips screw from the lamp door cover then the screws from the lamp housing and pull straight out, do not touch the glass portion of the lamp with your fingers, the oil from your skin will shorten the life of the lamp,
when installing new lamp push into tunnel just far enough that it touches end of tunnel then snug with screws. DO NOT push in hard on lamp, re-install lamp door and front plastic cover and enjoy,
good luck, video tek
First, try to unplug and reset. Second, Remove back cover and check for shorted horizontal output transistor with ohmmeter. If shorted replace flyback. Next, carefully disconnect plug connectors from deflection pcb. No need to disconnect h.v. or screen leads. Remove from plastic frame and look at bottom (solder side) for cracks around pins of flyback transformer. Resolder all pins. Last, look for two or three bulging capacitors in power supply on same board and replace. Any of these things can cause a dead set. Good luck, Russmann.
Good Day, Ajejo;
Sorry I'm not Circuit City, but work for them for many years down here in TX.
The chassis number is the best way to find out information about the TV. The CTC195K3 is very commonly known to have bad 'flyback'. The crusting you indicated on top of said transformer is the indication that it is defective, I've changed 80-90 of them over the years.
So, job well done, your wife must be proud of you.
Part information: Location; T14401, Part Number; 239111, Name; IHVT, Integrated High Voltage Transformer.
Caution when replacing the fly, looking at the bottom, the pins are shaped like a horse shoe. At the closed end there is an separate pin. Make sure new has the extra pin (for focus), Iv'e had many lately that does not have it.
Good Luck, big IRISH. PS; good job good eye let me know.
Flyback transformers rank about a 5 or 6 on dificult to repace.. depending on the model of tv that you are working with.. the rca itc222 can be difficult.. dependend on your soldering experences. To replace this one you have to pull the chassis tray up and out to get to the bottom... unsolder the pins ussally a vacum desoldering tool is required because it is important to remove all solder from the pins..then gently pry the clips that hold it on the board... this is where you can mess up unless the pins have be completly solder free you can crack the board... NOW the hard part... removing the wire from the flyback.. if the flyback is the type that the wire comes out. the wires will eather have a clip around the large wire or you will have to go to the other end of wire and pull it out from the splitter. eather way this wire is firmly in an will require gently but extremmly firm pulling to get out.