My tv does not stay on when i turn it on i removed the back cover and found a grey rectangular looking part that has missing solder on one of the tips. it has these following numbers on it r-73 kp-oo87 ufh-2000 vdc rs @ a10405 does any one know if i can just try to resolder it to go the cheap way?
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Re: rca w 52 w 17 wont stay on
Thats the box capacitor. you can try resoldering it, but its most likely needing replacement if the leads have black around it. If you do need a new one you can get the box capacitor at the following link. http://servicemanuals.vstore.ca/
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Take the back off. The circuit board to the left is the deflection board. The hv transformer is to the left. resolder all the connections on this part on the bottom. Next just to the right of the HV trnsformer ther are 2 rectangular boxes. these are pc mount fuses. check them for continuity. Replace the one that is open. You can use a .5 amp pico fuse. I hope this helps.
Power supply board have problems,just not dead yet. open the back cover of the television and look round for bulged capacitors, if found replace with the same voltage rating , then if otherwise, Replaced the power supply board,will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
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.
For starters..you have two bad electrolytic capacitors. If you change them now you may be able to save this TV from a bigger problem. Like a new flyback and a retrace cap. If you can..look inside the back cover and look for two bulging caps. I'm telling you what I've heard other TV techs discuss.
The lamp already need replacement.To replace your lamp you need:
OEM RCA DLP lamp
T-10 & T-15 torx driver
Steps: Use a pair of latex gloves.
Locate the lamp through the rectangular at the back of your TV.
Loosen the screw with your flat-head screwdriver.
Use the two "clips" to open the compartment door.
Loosen the screw on each side of the lamp enclosure.
Gently pull back the tray to remove the lamp.
Visually inspect the area labeled “Clip.” They are on the top and bottom of the enclosure. Between them, there is about a 3′ gap where you need to push in with your thumb to be able to pull out the rear lamp cover.
Unscrew the lamp connectors with your pliers and torx driver and remove the three screws.
Replace the old lamp with the new one. Be sure to put the washer back and all other parts properly.
Leave the back off and try to power the set on...be ready to pull the plug. Whatever is sparking/smoking is your bad part. On this TV I would suspect the flyback transformer or grey rectangular polyester capacitor mounted in front of a heatsink on the left.