After reviewing a few other solutions on this site I replaced three capacitors on the Flyback PCB of my RCA D52W17. I replaced cp150, cp114, and cp120. Two of which were obviously blown. The television powers up normally runs for 5 to 15 minutes and powers itself down again. I am looking for any other possible solutions. Please help.
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Make sure you resolder the flyback and recheck any RCA fuses that may be blown - they are usually near the flyback. If this does not help check the site www.tvrepairkits.com for repair kits or tips for your projection tv model.
I had the same issue. Some other sites suggested the Inverter PCB could be faulty but I couldn't see anything obviously wrong with it. However, I did notice that there was only 19V coming in on the 24V supply to it. The 24V is supplied from the Power Supply PCB (the one where the mains supply comes in to). So the solution was to replace 2 x 680uF capacitors on the power supply board, located near the 24V output connector to the Inverter PCB. Visually, these two capacitors appeared to be 'bulging' which is a good indication that they are faulty.
How old is the tv? This is a power supply symptom. You will need to take the back of the tv off and check for puffed capacitors on the power pcb. This is the board where the power cord plugs into. Lay tv face down on a cushioned surface large enough to support the tv frame. You do not want to damage the panel. Then remove the back. If there are puffed capacitors, replace them with equal or slightly higher valued capacitors. The value rating for capacitors are mf and voltage, printed on the capacitors. If they look good, you will need to check the dc voltage output from the pcb usually about three connectors in the same area. One way or another, it is a power supply problem, usually corrected by replacing caps, but if that doesn't work, you will need to replace power pcb
try to open the back of your tv. but be sure to unplug it. try to follow the ac cord of your tv that is your power supply part. you will see the capacitor try to find a swollen capacitors if you see a swollen capacitors replace it with the same type observe the marking of the capacitor the marked part of the capacitor is the negative. then try check also the main pcb. the power supply part up to the flyback area check if their is a weak solder parts.
replace the flyback # 259296 you can get the 259296 flyback replacement kit at the following link which contains the flyback and the CD with detailed instructions for the repair. http://www.tvrepairworld.com/
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.