Question about RCA P50830BL 50" Rear Projection Television

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Picture No Sound

I was watching tv one day and the next day i had no sound. picture but no sound, any advise would be great.

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6 Suggested Answers

  • 3130 Answers

SOURCE: high pitch ringing noise and picture distortion

Sounds like the capacitor that goes bad just before the hIgh Voltage transformer goues bad. If i were you I would call an authorized RCA repair Shope and see if this is going to cause more damage to your set in the future.

Posted on Aug 26, 2006

  • 375 Answers

SOURCE: beeping sound when tv is pluged into wall. no picture or sound

is it beeping or cherping ,cherping it the power supply trying to run.power supply poss.faulty

Posted on Aug 22, 2007

  • 5138 Answers

SOURCE: tv picture goes off but still have sound.

Resolder all poor connections on power supply board and this should fix your problem.

Posted on Feb 11, 2009

  • 3 Answers

SOURCE: Heard a loud

Just had the same problem.
Unplugged the set from 110V.
Replaced the bulb, following instructions in owners manual.
Plugged the set back in and it worked 100%.
Bought the bulb from Tristate Module Inc. for $113- including shipping.
User manual can be found
click on TV's,
click support,
click GO in Downloads, enter your screen size and model number.
click on User Guide & Warranty
A 96 page pdf user guide will display.
**** Bartlett

Posted on Apr 17, 2009

  • 19396 Answers

SOURCE: A repair question for the RCA M50WH74S

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |

On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Posted on May 05, 2009

  • 3866 Answers

SOURCE: tv has sound ,no picture,power light comes on

Tihs would be the power supply unit gone bad.

1. Check power supply fuse if the fuse is blow so are the caps do not try to replace the fuse you will smoke this thing.
2. upon inspection you can remove the power supply unit and buy a new one. There about $150 bucks aftermarket for this unit. So I would be looking for other RCA's with this same series and pull some psu's to save money.

I hope this helps you find a solution for your TV these are nice to have and worth the repair.

Posted on May 21, 2009

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