Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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I believe that I have a HV problem but need some direction? Initial problem was smell and a pop noise resulting in three LED power on blinks with a squeal.

After numerous efforts to repair I still have three blinks and squeal is gone. The following parts have been replaced: CP114, CP120, CP130, flyback 259296, HOT C5588, DL201, CP049, CP050, CP019, CP012, CP113 and RP050. CP150, DL012, CP010 were removed and checked OK. Voltage at BP010 was about 330vDC. HV wire from flyback removed at splitter with no change. BA010 removed with no change. I recently asked a question about whether there is a red LED when set is in standby. I do not have the red LED. I am going back to the beginning of the troubleshooting and service manuals. I am a novice and I am enjoying this experience in solving this puzzle. Thank you in advance for any help.

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You could have a bad flyback usually they will make a sort of a hiss as there is a short internal and even the after market replacement flybacks can be new and defective .. or loss of horizontal drive . also the two chemical ribbons that jumper over from the signal board to the smps /deflection board the white ribbon connectors can cause problems also if you have the black one's there probably alright . or a shorted crt could send it into a shutdown . there are a few things to check and it appears your on the right track you have changed the caps on the deflection pwr board . let me know how it goes please

Posted on Dec 13, 2014

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I believe that I have a HV problem but need some direction? Initial problem was smell and a pop noise resulting in three LED power on blinks with a squeal.


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HI, this is the result of an unstable power sector in this unit. the fly back is malfunctioning and, you will need to replace it asap. i will list the part number below and a link to a site as well. you can purchase this part on-line if you wish.

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