Question about RCA P52921 52" Rear Projection Television
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Posted on Jan 02, 2017
SOURCE: RCA P50830BL will not turn on
You have a shorte chopper diode, on main board look in middle of BD. You will need to change Horizontal output and Block blue caps and big Diode.
Posted on Nov 26, 2007
Hi, This could be several things as the power goes everywhere. Long distance troubleshooting so hang in there. First try a cold reboot by unplugging and replugging after 30 minutes. If nothing check P1 on the light engine for the following voltages: pin 2 5vdc, pin 3 3.3vdc, pin 9 3.3vdc, pin 12 12vdc. If any of these are not good it is the formatter board. If all are good, does the color wheel spin at all. If this is OK then check J4 on the light engine, the ballast enable line should be 0 vdc in stby, .5 vdc at turn on, and 2.5 to 3.25 vdc in run. If good, is the light engine trying to fire the lamp? If not, inspect the J4 connector and the lamp power supply, If they look OK then the lamp ballast is probably bad. This will give you something to do for now, Good Luck!
Posted on Feb 15, 2009
That can either be the Flyback or the HV splitter. The flyback is located on the lower left hand side when looking in the rear and has a large red cable coming out of its top. The HV splitter is located in the front in the center of the set. These are both very easy and inexspensive to replace. I can post a link where you can get replacements with instructions.If you would like.
Posted on May 08, 2009
sounds like my 32", its going to be one of three things,
if it is this you will need to order one online and install it yourself, lots of guides online to help you with this process,
High voltage power supply,
again this can be purchased online and directions are available, if it is the high voltage supply, the tv will act like it wants to come one and maybe click a couple of times
Low voltage supply,
the tv will do nothing, now if the tv does nothing, the low voltage supply isn't the only possibility, but the most likely, check fuses on this one as they are easy
Posted on Jun 25, 2010
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