I have a unit described above, that has no power at all. The fuse is OK. There are a few dark spots on the board, but no completely burnt or obvious resistors or circuits. I have not ohmed the board or checked everything out. Any obvious problems that I should check out.
I have the same problem. I have had this machine for a year and really like it. Since I couldn't find a quick fix I went out and bought a similar product, but I would really like to fix this one so that I may use it in my bedroom.I have the same problem. I have had this machine for a year and really like it. Since I couldn't find a quick fix I went out and bought a similar product, but I would really like to fix this one so that I may use it in my bedroom.
I have the same unit. Worked great for about 9 months then while watching it went fuzzy then off. I had power initially but no buttons would work. Display said "hello" I thought I'd unplug it a while to see if something would "reset" when I plugged it back in, I get nothing at all:(.
Too bad, was great while it worked. RCA customer service NO help!I have the same unit. Worked great for about 9 months then while watching it went fuzzy then off. I had power initially but no buttons would work. Display said "hello" I thought I'd unplug it a while to see if something would "reset" when I plugged it back in, I get nothing at all:(.
Too bad, was great while it worked. RCA customer service NO help!
...same here no power at all now! In laymans terms whomever answered the solution...what is a 1000hf 16v cap? Where can I buy it? How do I install it? [email protected]...same here no power at all now! In laymans terms whomever answered the solution...what is a 1000hf 16v cap? Where can I buy it? How do I install it? [email protected]
I have no power on my RCA DRC257N. Worked fine for about 11 months. Then one day it just did not power on.I have no power on my RCA DRC257N. Worked fine for about 11 months. Then one day it just did not power on.
Same unit with same problem RCA wouldn't help at all, the unit only worked about 3 months, then nothing.Same unit with same problem RCA wouldn't help at all, the unit only worked about 3 months, then nothing.
i was watching a movie after that the dvd screen went into ( rooc ) mode everything froze as the time, i read the rca user guide the only thing it says turn it of or take the power cord of for few minutes and plug it back , after i did that i had no power what so ever so what is going on any one knows ????i was watching a movie after that the dvd screen went into ( rooc ) mode everything froze as the time, i read the rca user guide the only thing it says turn it of or take the power cord of for few minutes and plug it back , after i did that i had no power what so ever so what is going on any one knows ????
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Had the same exact issue. RCA DRC257N was acting funny, frequently freezing up at HELLO screen, sometimes buttons would stop working during playback, requiring frequent unplugging to get back to working. Opened the case, pulled out the power board and noticed that capacitor C411 (1000uF 16V) was bulging out at top and bottom. Replaced with a $1.59 1000uF 35V capacitor from Radio Shack and all is back to good working order. Thanks.
Hello guys.... Thanks so much for the info on how to fix this issue. I have the same RCA HDMI player and I build custom computers and repair laptops and desktops. I have no problems with busting out the soldering gun to fix something. I had to rip apart a old dell tower to get a 3300u 16 volt and soldered it in and it fixed the issue. The 1000uf also popped at the bottom and was fried. Thanks again, I looked at the caps on the power board but didn't see the bottom one busted out at first, and don't think I would of noticed it without this info.Hello guys.... Thanks so much for the info on how to fix this issue. I have the same RCA HDMI player and I build custom computers and repair laptops and desktops. I have no problems with busting out the soldering gun to fix something. I had to rip apart a old dell tower to get a 3300u 16 volt and soldered it in and it fixed the issue. The 1000uf also popped at the bottom and was fried. Thanks again, I looked at the caps on the power board but didn't see the bottom one busted out at first, and don't think I would of noticed it without this info.
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Before reading anything about the RCA DRC257N HDMI DVD player online, I decided to open the DVD player and inspect the power supply board after the unit failed. I found that the 16v 1000uF capacitor can had a bulging top, and then with closer inspection I saw that the bottom was pushed out. I was worried that the capacitor being damaged may have also effected more components on the board. I decided to attempt a repair, without the use of a multimeter. I looked around through my computer parts junkyard hoping that some board may have a 16v 1000uF capacitor. I opened up a computer power supply, and out of the dozen or so capacitors one of them was a match. I de-soldered the bad cap, and soldered in the new. The DVD player works perfectly now.
The terse, unexplained, and therefore useless, answer of "1000uF 16v cap." apparently is in reference to C411 on the power supply board, which is a large Electrolytic capacitor that is the final filter stage on the DC power going out the the main system board. If this capacitor is not functioning properly, there could be ripple in what should be a pure DC voltage feeding the logic and video circuits of the system. ANY fluctuations in this DC voltage can cause erratic behaviour throughout the system. Symptoms such as weird displays, functions not working properly, intereference in the video, and total failure can be attributed to "dirty" DC voltages to the main board. This is true regarding ALL of the big "black can" capacitors on the power supply board. A user's ability to replace ANY circuit components would be limited to their competency with a solidering iorn, removal, repair and replacement of circuit boards, and would be done STRICTLY AT YOUR OWN RISK.
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Based on the symptoms you described, there could be several possible causes for your Samsung UN65NU8500FXZA not working properly. Here are a few potential explanations:
Main board issue: The main board is responsible for processing and sending signals to the TV's components. If the main board is faulty, it could cause the TV to display abnormal behavior, such as not turning on, blinking lights, or no picture. You may want to consider replacing the main board to see if this resolves the issue.
Power supply issue: The power supply is responsible for supplying power to the TV's components. If the power supply is not working properly, it could cause the TV to turn off or not turn on at all. You can check the power supply unit for any visible signs of damage, such as bulging capacitors or burnt components. If you find any, you may need to replace the power supply unit.
Flex cable issue: The flex cable connects the main board to the other components in the TV. If the flex cable is damaged or not seated properly, it could cause issues with the TV's display. You can check the flex cable for any signs of damage or looseness. If you find any, you may need to replace the flex cable.
Backlight issue: The backlight is responsible for illuminating the pixels on the TV's screen. If the backlight is not working properly, it could cause the TV to display a dark or black screen. You can check the backlight for any visible signs of damage, such as dark spots or flickering. If you find any, you may need to replace the backlight.
Based on your observations, it seems that there may be a problem with the main board or the flex cable. You may want to try replacing these components to see if it resolves the issue. However, it's always a good idea to consult a professional technician if you're unsure how to proceed or if you're not comfortable working with electronics.
Could be a faulty power supply in the actual unit. Check inside it for a fuse on the circuit board while its unplugged could be blown. Usually power into unit is higher AC voltage (DEATH) and a transformer lowers the voltage so if you take it to a technician they should be able to measure the lower dc voltages to see if the power supply is working ok and if any fuses are blown.
The fuse for the convergance power supply most likly is not your problem, go to the board below it, the deflection board and neer the flyback you will find three small fuses the one in the center is the most common problem with convergance and this also can be cused by the pins for the flyback comming unsoldered
OK., I know this set very well. It almost never has a convergence problem.
With the set unplugged, remove the back cover--there is a small circuit board mounted ABOVE the main boards--it is about 10 inches wide and 4 inches tall---On the far right side of it are several DIODES---two are much larger then the rest--what usually happens is one of the large diodes is shorted--5 dollar part---the board only has a few plugs and 4 screws that hold it in---easy to remove--check all the diodes(the two large ones first)
If either of the large diodes read like a fuse you FOUND YOUR TROUBLE.
LET me know if you need ANY help or Advice--I am here to help people---I have seen several sets identical to yours with the problem you describe.
You probably have a bad main control or console control unit in there. Turn power off to the machine, be sure that BOTH of your door switches are ok. Unplug your membrane to control panel ribbon cable, then put everything back in place. Leave the door open, then turn power back on to machine. (also, be sure the thermal fuse hasnt tripped while your in the console). After re-appling power, close the door, and wait a few, if the console unit is bad, the machine will go into drain mode (you will here the unit start in drain). If no drain mode, then your control is shorted. You dont have to see any burn marks, etc for one to be bad, in fact, 98% of the boards we replace, dont show any signs of problems. Let me know what you find out.
I had this problem after only a few months of use! There were some bad capacitors on the power supply board. Replacing them fixed the player. They used cheap electrolytic capacitors on this unit; check them all while you have it open.
no reset button ,sorry. The problem you describe is pretty common with this model as its a fault in the horizontal drive circuit or in the main power supply and without the proper service manual as well as the prober tools and equipment this set its not gonna get fixed. there are no panels or user changable boards as it is a solid state set. ptscorp.com could repair this board or exchange it with a referbished board but it would still requir some adjustment that a user may not be able to handle. time to call the pro.. Sorry couldnet help ya more.. Good Luck.
I have the same problem. I have had this machine for a year and really like it. Since I couldn't find a quick fix I went out and bought a similar product, but I would really like to fix this one so that I may use it in my bedroom.
I have the same unit. Worked great for about 9 months then while watching it went fuzzy then off. I had power initially but no buttons would work. Display said "hello" I thought I'd unplug it a while to see if something would "reset" when I plugged it back in, I get nothing at all:(.
Too bad, was great while it worked. RCA customer service NO help!
...same here no power at all now! In laymans terms whomever answered the solution...what is a 1000hf 16v cap? Where can I buy it? How do I install it? [email protected]
I have no power on my RCA DRC257N. Worked fine for about 11 months. Then one day it just did not power on.
Same unit with same problem RCA wouldn't help at all, the unit only worked about 3 months, then nothing.
i was watching a movie after that the dvd screen went into ( rooc ) mode everything froze as the time, i read the rca user guide the only thing it says turn it of or take the power cord of for few minutes and plug it back , after i did that i had no power what so ever so what is going on any one knows ????
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