I removed the back of the set to check the color wheel operation, I hit the power button and it runs for around 20-30 seconds then shuts off for a minute or so and then repeats the cycle. The power button then flashes 5 times, stays on for a minute or two then repeats.
SOURCE: RCA HD50LPW175YX1 Panel lights blink 5 times, not power on
make sure the lamp is pluged in all the way
SOURCE: 52 RCA DLP 1080P Television with NO picture and buttons flash
IF you would like help diagnosing your set. Go to the enclosed link. They have the service manual for your set and offer unlimited chat support for only 29.99. Just click on your sets manufacturer and you will see your model. Then click on the contact us link and provide your email address and they will email your manual and instructions on how to obtain your support. I am one of their techs. This manual contains step by step procedure for troubleshooting Your RCA DLP Light Engine
http://servicemanuals.vstore.ca/
SOURCE: dlp 50 inch
sounds like the DM3 isnt powering up the ballast to light the lamp or the ballast may be faulty. i would suggest trouble shooting the DM and ballast voltages.
SOURCE: binks 5 times
You need to replace the capacitors on the power board. this is a very common problem with the RCA dlps See my tip under my profile for the ATC336 chassis RCA, your model is the ATC311 but it applies to your model as well.
SOURCE: I have an RCA DLP M50WH72S tv. Powers up, picture
Hello; I am John at J D Electronics in Poland Maine. I have had an RCA model M50WH72S setting dead in my shop for over a year now and is now mine. The set would start intermittently and run for an hour and die. Other times it would not start at all and the LED would flash 5 or 6 times and stop. With no support from Thomson/ RCA, I was on my own. The extended warranty Co said to try the light engine first. I replaced the light engine with no improvement, just the led flashing. I was not going to pay 500 to 700 dollars for other boards to try to fix this piece of JUNK.I have since read several blogs that point to power supply caps as being the problem. I took this piece of junk apart for the last time before I hauled it to the dump. I pulled out the power supply on the left as you face the back of set. I noticed 2 Electrolytic caps had " domed shaped tops ,which is a good sign of failure or overheating. They are 1000 ufd @ 35Volts 105 degree rating. They were both bad along with 2 more on the same board ! They are labeled CP624 and CP647 on the bottom edge of the board inside the "c" shaped heat sink. The other two are above the chopper transformer labeled CP641 @ CP639. replacing these fixed the set. Call DigiKey 800-344-4539 part # 493-1588 are ten for $7.00. Don't spend money on a lamp you don't need.
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