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I have a rca model # m50wh74s......i have sound and can control the volume and channel but there is no picture.....the blue power light flashes.....when it was working right the light was solid

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  • Anonymous Nov 17, 2008

    can control sound and channels but no picture

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Replace Deflection board cost 77.99

Posted on Sep 24, 2008

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1 Answer

Rca dlp model /page-2


White dots on a DLP are ALWAYS a DMD chip problem, you can find these online like at Discount-Merchant, they are easy to replace you can find videos on youtube, they are sometimes called DLP chip.
Easy to do for a fairly experienced or handy person!

Feb 21, 2014 | RCA 50in Tv M50 Wh 92s Dlp Hdtv Works But...

1 Answer

My 50'' RCA MODEL# M50WH74s has low volume when turned up all the way,I went into the menu and turned up all the master volumes and it still low when I'm watching tv.But if I play my video game the volume...


hmmm...so the volume is low when you are running some other input? What do you have driving that tv, since the amp obviously works with game ports.

Mar 27, 2008 | Projection Televisions

2 Answers

Have a RCA M50wh74s replaced the bulb....blue light blinks 5 times again and again eventually a steady blinking all blue light bulb in correctly, door closed correctly, any suggestions and I have sound.


Bad Caps on the AC IN board? I would visually inspect the caps on the AC IN board for any sign of swelling or doming on top. They should be perfectly flat.

Aug 20, 2011 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

Have a weird problem M50WH74S RCA


i found out tht it could be the (DMD) Digital_Micromirror_Device i dont know if that is you problem or not

Sep 17, 2008 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

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.

Aug 18, 2008 | RCA HD52W56 52" Rear Projection HDTV

2 Answers

Rca m50wh74s HELP


Sounds like a bad high voltage transformer (FBT). Call a service center.

Jan 11, 2008 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

No picture and no sound


IF you would like help diagnosing your set. Go to the enclosed link. They have the service manual for your set and offer unlimited chat support for only 29.99. Just click on your sets manufacturer and you will see your model. Then click on the contact us link and provide your email address and they will email your manual and instructions on how to obtain your support. I am one of their techs. This manual contains step by step procedure for troubleshooting Your RCA DLP Light Engine
http://servicemanuals.vstore.ca/

Jan 07, 2008 | RCA HD61LPW163 61" Rear Projecection HDTV

1 Answer

RCA 50" widescreen model M50WH74S Quit working


the deflection board put set into shut down,should be under warranty for service.

Aug 03, 2007 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

P61927 troubleshooting white noise


a similar problem was discussed here a while ago, ill quote from there: "This problem may occur when some TV's are connected to a volume control converter. To correct this, decrease the TV's volume until the buzz disappears. Now use the decoder/converter volume control and increase the sound to a comfortable listening level." hope it will help.

Jan 13, 2006 | RCA P61927 61" Rear Projection Television

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