Question about RCA 39LB45RQ 39" LCD TV 1920x1080, 60 Hz, HDTV

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Rca 39" lcd full hdtv 39lb45rq picture comes through approximately 20-30 seconds and then black screen. Sound is ok.

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Using this splitter to connect our Directv Genie receiver to four TVs as they are often playing the same show simultaneously. Works flawlessly so far and permits one or four TVs to be on based on need. Amazon com MALLCROWN 4 Port 1080p HDMI Splitter with Ac Power adapter...

Posted on Dec 05, 2016

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on Dec 04, 2016

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Posted on Jan 02, 2017

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1 Answer

RCA lcd 39lb45rq turns on but there is no picture or sound


Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Nov 02, 2016 | RCA 39LB45RQ 39" LCD TV 1920x1080, 60 Hz,...

1 Answer

Sound is not so good it is like a tin can


Possibly, as RCA is an entry level cheap as chips make. The sound should be reasonable though. They looking in Settings Menu for and settings where you can change the Bass and Treble and the Balance like a car stereo.

Sep 25, 2016 | RCA 39" class LCD HDTV 39LB45RQ - ON Corp...

1 Answer

Why my RCA 39LB45rq shut down


There may have been a power supply failure.

Jul 30, 2014 | RCA 39" class LCD HDTV 39LB45RQ - ON Corp...

1 Answer

Picture upside down


Check that the connectors are properly put on. In some models of TV sets the connectors are not keyed, and can be inserted in either direction. This would be obviously the connector that is carrying the image data to the screen.

If this is not a reversed connector, then it is most likely a firmware issue in the new replacement board. Make sure the replacement board is the exact one required for your model type.

Jun 15, 2014 | RCA 39" class LCD HDTV 39LB45RQ - ON Corp...

1 Answer

Had tv on for a few hours and it turned off not to come back on


possibly fuse(open) or capacitors(bulging at top) in power supply, but could also be Power supply PCB or Main PCB

Nov 25, 2013 | RCA 39" class LCD HDTV 39LB45RQ - ON Corp...

1 Answer

RCA L32HD32D no picture


Most likely you have a bad back lamp. Most times when this occurs, the screen will come on for a second or two then go off. Replacing a back lamp isn't a job for do it your selfers. It will involve completely disassembly of the LCD panel.

Jan 12, 2013 | RCA L32HD32D 32 in. LCD HDTV

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