Question about RCA D52W20 52" Rear Projection HDTV-Ready Television
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Posted on Jan 02, 2017
SOURCE: rca 2720ba 52 inch projection
if that's a dlp unit they are garbage ive had two and both died in same manner in less than a year one the bulb blew on in three months after purchase then went blank and started making a high pitched squealing sound had to argue with rca cust support after repair shop said they could not fix it rca finally sent me a new one but with less features after i argued with them for another three that one did the same thing after three months now rca wont even talk to me and ive got a 100lbs paperweight that does nothing i was told it was the light engine at a cost of around a grand for part so don't waste your money on a repair shop mine is still sitting there blank and i understand this is a common problem from checking the web just roll it in the back yard spend you money on one that will work im going lcd this time and i do houseld appliances not tvs so dont worry about rating me i like to pass this info on every chance i get just to help my friends at rca
Posted on Jan 02, 2008
I have the same set (D52W19B w/ TC222 chassis) with same symptoms. The set turned on a few times but I heard a sizzle. So I took off the back panel and tried to turn it on again. I heard the tube power up and then saw what was sizzling: an arc under the board about an inch behind the flyback kind of near the big metal heatsink. Any ideas? The tv was given to us so I'm not afraid to tinker with it.
Posted on Oct 13, 2008
SOURCE: T.V. won't turn on
This is a classic symptom of high voltage shutdown. There is probably a bad flyback [high voltage transformer]. The problem is one for the techs. Replacement usually involves also replacing several H/V components as well. The TV tries to come on, energizing the H/V circuits, then, the protection circuit detects too much current and goes into "protective shutdown" and then tries again. After a few tries, it stops trying. The protective circuit us there to keep from blowing breaker or causing a fire.
If it's an expensive set, take it in to the shop, otherwise go shopping for a new one. This repair can run anywhere from $100 - 400.
Posted on Jan 01, 2009
SOURCE: RCA model# M50WH185- I turn
Since the problem is intermittent, start checking from the lamp cage door lock. A defective lamp cage lock can result in similar problems.
The same problem is commonly given by a defective lamp. There is no way of testing a DLP lamp, then the lamp gets usually replaced before repairing the rest. If the lamp has many hours of use, replace the lamp first, then work on the rest.
If the lamp is OK, then it is either a bad PSU or a defective ballast. The PSU supplies power in different voltages. Each line is independently used for a different function. If the PSU is defective there can be intermittent power to the lamp while the rest of the TV functions are working. Power to the lamp goes through the ballast. The ballast is the board that supplies power to the lamp. With both PSU and Ballast problem you may have video going off, or TV going to forced standby with LED blinking with no additional problem (no sound or picture issues before going off).
Ballast and PSU are tested reading voltages. If both parts test OK, then the problem is the digital controller board. In that case the protection circuit it is likely faulty.
Here a service manual for this model at $7.99: M50WH185 ...
Posted on Jun 13, 2011
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