Question about RCA M50WH92S Bulb

2 Answers

I have an RCA M50WH92S and when i turn it on the power light flashes 5 times and no picture. I have replaced the bulb today. any ideas?

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  • SD Tech
    SD Tech Dec 10, 2012

    typical color wheel

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  • RCA Master
  • 14,553 Answers

First is parts for this set can get expensive---I would do two things first:

1. Look to see if lamp comes on at all--even for a few seconds.

2. Look with lamp removed where it faces to see if color wheel broken/shattered or missing pieces of the wheel.

If the lamp does not come on the next suspect would be the Ballast which powers the lamp---if its bad you may or may not get sound either.

Posted on Dec 10, 2012

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Posted on Jan 02, 2017

SOURCE: won't turn on

Replace the small signal board and take the eeproms off the old board put on new board to avoid convergence alignment and geometry problems

Posted on Jun 21, 2007

ginko
  • 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
connected.

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 PartStore.com

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

rsweet598
  • 19 Answers

SOURCE: TV works for 5 min then shuts off and power light blinks green

check your sleep mode...

Posted on Jun 20, 2009

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