Question about Mitsubishi VS-50603 50" Rear Projection Television

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Set won't turn on

When I push power button, power LED indicator turns on then immediately turns off. Don't hear HV come up. Obviously power supply problems. Anyone give specifics power supply areas. Thanks

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Re: Set won't turn on

I would check the convergence output IC`s first.

Posted on Dec 07, 2007

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Power coming in to television, but when I push the power button to turn the tv on; it does not come on.

You may have what I call the hard to turn on issue, look again in the power supply inside the set--follow power cord that goes to it and look for puffy filter caps:


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Power button lights up but tv won't turn on

Older set but pretty good set, set is prone to the HV transformer going bad but not many other issues.

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Turned it off, now it wont turn on, can hear relay click when pressing power button, power LED on front is always on, no picture no sound, if I unplug for 30 mins, when I plug it back in I believe I can...

Good day!!!!

If you hear a clicking sounds of relay inside that means your TV have a voltage on the power supply section.However,when the high voltage attempt to switch the voltage will dropping down and the TV won't turn ON that,s why you hear a HV (high voltage) charge or what we call HV (high voltage) oscillation..

That problem is commonly cause of faulty capacitors on the power supply section..You can easily identify the bad capacitors if it is look like bulged/dome or sometimes leak in oil but not all faulty capacitors have an obvious indication like that because sometimes faulty capacitors look like good but the actual capacitance value change its either lower or higher than the original capacitance value.In that case you a special tester called capacitance meter to identify the faulty capacitors..

This is the sample image of bulged/dome capacitors.

Please let me know if you found any bulged capacitors on the board..If that so kindly replace it only with same type,ratings and value..You can buy it locally or online and if you want sir I'll be the one search it online just give me the value ex.2200uf/50v. uf-means microfarad and v is for voltage..

If you can't find any bulged capacitors let me know,maybe that is time to proceed for advance troubleshooting.In that case you will need a multimeter tester for voltage this stage you need a moderate technical skills to perform this kind of troubleshooting this stage not advisable for the non-pro so let me know if you have any electronic background..If you don't have electronic background as much as possible I can't advice that because its too dangerous..I can diagnose the problem base on what you see and observation..

Just keep on touch!!!!

Hope it helps..

Try to watch this video on how to replace bad capacitors..

Jan 14, 2012 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

Model ws-55859. When tv is turned on, it immediately turns off. Is it the timer set or some other problem?

is a power supply overload is normaly a HV Circuit defective, need to be repaired send to repair.

Feb 14, 2010 | Mitsubishi WS-55859 55" Rear Projection...

1 Answer

Samsung HC-R4755W turns on and off by itself.

Have Capacitors checked in the power relay circuit, also if you have young children who like to push the buttons on the front of the set make sure none of the buttons are sticking inward or stuck in a pushed in posistion. More then likely it might be caused by a faulty System control board which we call the signal board, or bad connections on the power supply, Have a tech check the connections on the Flyback transformer and the High Voltage Deflection Area on the HV Power supply. I believe you have Cold Solder Joints in the HV Power Supply.

Hope you this helps you..

Apr 21, 2009 | Samsung HC-R4755W 47" HDTV

1 Answer

Sony Projection Tv Model KP-51HW40

With both of error codes flashing, the problem is trying to figure out wich one to focus on. The flashing 6 code is an indication of HV failure which would then cause a vertical failure(4 blink code). There are so many things that would cause this problem. I can narrow it down to the "D" board to fix your problem. If I were there to troubleshoot it, I could narrow it down further I.E. flyback, HV distribution block. I suggest getting a tech diagnose the exact problem. I wish I could narrow it down better for you. Please take time to rate this solution and if I can be of further assistance, let me know

Dec 13, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Tv wont turn on

the rca itc222 chasis has no front led diagnositc codes. Does the led flash imedatly when you plug it up. or does it start when you push the power button. if it does when you first plug it in then you have a problems with what is know as standy voltages. voltages that are always there when you [lug the set in. the processor does not see correct voltages. now if this flashes occur when you oush power button then there is problems with the secondary voltages also known as run supplys. does the set try to turn on do you hear static.. if not then you might have high voltage flyback or horizontal output problems.

Sep 24, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

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No picture or sound

Remove the rear panel. With the TV on you should see a red LED near the center of the PCB. There should also be 5 green leds, 3 to the left a 2 behind. If there is no red leds, check the fuses. If there are no green leds or maybe 1 or 2, disconect PSD5. It's a connector on the left side of the power board that connects to the audio board. It's the 3rd on fro the back. It's labled. With that disconected, turn on the set and look for the green leds. If all 5 light, the power supply is OK and you have a problem beyond that. If they don't all light you have a bad power supply.

Jul 21, 2008 | Hitachi 50EX20B 50" Rear Projection...

1 Answer

Power problems

This is an old tv . You cuold have bad caps in the power supply or the startup section of your set . Sometimes this set employs a regulator IC in the power supply that is going bad , but not shorted out . Last resort maybe a loose connection in the horizontal or hv section . Good luck

Mar 04, 2008 | Projection Televisions

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