Question about RCA HD52W59 HDTV Projection Television
According to you, your RCA TV has went off while watching it. As there is no sound or picture at all, and the power kicks, the fault must be to its horizontal out section. The horizontal output section have LOT [Line Output Transformer] and related parts in it. Your TV must be chcked well to detect the actua fault. Normally, the LOT said above can be faulty, otherwise, the horizontal output transistor, the device that drive the LOT may also damaged. If this transistor gets leaky, the secondary main power DC supply will get a direct short, and the set will come on protection mode as we switch it ON. Here, according to you, this is happening. Just replace the horizontal output transistor first and see the effect. It is a three terminal component, screwed on to a metal heatsink, and can be located very near to the above said LOT.
After replacing it, switch On your TV, for a while, say 5 seconds or so, and if a whisiling sound is heard, and the replaced transistor over heats, the LOT said above is faulty, and should be replaced with same type and number. OK.
Posted on Apr 05, 2011
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Posted on Jan 02, 2017
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