Question about Sony KDS-50A2000 50" HDTV

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I replaced the lamp and now i here sound but no picture

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  • Sony Master
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Ww.devicemanuals.com/.../Sony/Sony-TV-Projection-KDS50A2000-User-Guide-TXpRNU1EWT.html
http://www.givemefile.net/smanuals/lcd_tvs/sony/file/8942.html
Above links top is user manual,below is the troubleshooting and repair manual, used by the engineers to troubleshoot and repair these units.Hi, well I applaud you for wanting to have a go and try to repair you set. But PLEASE, start in the right place, otherwise you will simply waste your time and money, You see, you MUST start, in the right place, The power supply, FIRST, as, if, that isn't right, nothing else can be. But you simply cannot do anything without a Service Manual. In this it has everything one needs to repair the set. OK if it is shutting down, after that amount of time, of working and then faulting, then it is most definitely a "Thermal" problem, the way we "Find" problems such as this is "Freeze Spray" you use this on each component that is suspected of being the "Culprit" and you will soon,find that errant component. Now, also not every fault is a Capacitor, I see many, many people that think, that Capacitors are always the "Culprit" and replace them, because someone else had done so and it worked, well that maybe sometimes true, but most Symptoms, can, and do have many, many different "Causes" & also, now while that may be true in a few cases, a faulty Electrolytic Cap, or even, ordinary, Cap goes faulty, this is only a SYMPTOM, something has damaged those caps causing them to "Fail". One MUST always find the root "Cause", otherwise if you just treat, the SYMPTOM, the "Cause" will just make the "Symptom" come back, in short order, as the prime cause still, hasn't been fixed., Now Capacitors hate AC ripple, or Over Voltage. Thats it. Oh.. and Heat, if these Capacitors, are too close to a Heat Source, then thats a prime cause of failure. Resistors, hardly ever go faulty,and if they do, it is generally obvious. However it doesn't hurt to check values with our Multimeter. Remember though resistors are made, with up to 20% tolerance from stated value, as such, are not too critical, unless in Timing circuits etc. Always check, the Values, of resistors, as with any other component, with the power OFF. Now Diodes especially "Zener Diode", are another thing to check, those and ordinary "Signal Diode" should always be suspect. next we have Transistors and IC's. The Transistors MUST ALL be checked to see if they have a good, "Junction" this is done, with our meter set to "Diode Test" and usually are about 0.6 to 0.7. With IC's you must check, voltage levels, or Logic Levels, going in and out, have a look at the circuit diagram, and it will tell you what they should be. It is a good idea to always measure the Power Supply voltages, see if a "Rail" is Low, that will be because some component has gone somewhat or all short circuit, to Earth, now, if the "Rail" is Higher, suspect an "Open Circuit" component, like a Diode, or Transistor. The voltages expressed in the manual are spot on, ANY variation MUST be investigated. I have been doing all this for over 30 years now, and I do indeed wish, we could have a set of "Symptoms" and be ables to say.. "Oh that;s the so-in-so and replace this" however unfortunately this although does happen, most "Symptoms" can have literally tens, of "Causes" all often "Interlinked" One simply has to do a methodical troubleshooting procedure, and always think, "are my Voltages Correct" as this is how, you Fix the problem, by making them so. Keep up the good work. If that link above doesn't furnish a Service manual, it is imperative you get one, even if you must pay for it. It will pay for itself in about 2 mins.

Posted on May 12, 2010

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1 Answer

I have a sony kdf 50e-2000 the green light goes on then it goes to thr red blinking lamp light. I have no sound or picture. If I replace the lamp light will I get sound and a picture again?


Hi,
Yes, if you have not replaced the lamp since you purchased this TV.
Lamps usually last about 6000 hours.
I've seen lamps last much longer than 6000Hrs, it all depends on the usage.
Remove the lamp from the TV and do a visual inspection, see if there's a crack on the glass or the bulb.
If the TV is few years old then the Lamp may be bad.

For a new Lamp: 800 638-3328
https://www.encompassparts.com/
DO NOT BUY the lamp from ebay

Good luck to you.

Nour Sabre
www.tvservice.com

May 24, 2012 | Sony KDF-50E2000 50" HDTV

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No sound or picture on jvc 52fa97


If lamp is bad set will detect that (or other issues) and kill all functions=not unusual to have no sound if lamp is bad.

Apr 15, 2012 | JVC HD-52FA97 HDTV

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TV STAYS ON WITH SOUND AND PICTURE FOR ABOUT 20 SECONDS .THE SOUND AND PICTURE GOES OUT FOR APPROX. MINUTE ,THAN THE SOUND AND PICTURE RETURNS .THIS PROCESS HAPPENS OVER AND OVER


It is symptom of weak lamp that has been reached to end of its working hours life and need to be replaced to solve this problem.
Replace lamp in your tv, procedure is easy and would be written in your tv user manual.
Buy Sony original lamp for good picture in tv.
Thanks.

Nov 21, 2010 | Sony KDF-E60A20 60 in. LCD HDTV

1 Answer

No picture, replaced lamp on HL-S6187W. TV makes a audio sound when I turn it on. Lamp does not light.


Did you replace the lamp? Was the Lamp original? Some time if you dont replace the lamp with original you are going to have this issue. Is there any sound. If you have sound and no picture is the Color Wheel.

Thank you,

Nov 03, 2010 | Samsung HL-S6187W 61 in. HDTV

1 Answer

My Sony Grand Vega (KDF-E50A10) LCD just made a loud pop sound and now there is no picture. The only sounds are a loud buzzing coming from the back....is this a burned out lamp??


Yes, loud pop sound was broken lamp in tv, replacement of lamp will fix tv problem.
Lamp replacement procedure is easy and would be written in user manual.
Please buy Sony original lamp for good picture in tv.
Thanks.

Nov 02, 2010 | Sony KDF-E50A10 50 in. LCD HDTV

1 Answer

No Picture but still has sound


Hi,do you hear any strange noises? If you hear clicking or like wanting to turn on it could be the board that powers the lamp it's called the ballast.Here's the instructions to replace it :http://www.fixyourdlp.com/guides/samsung/bp47-00033a.php It's major symptoms are clicking,electrical sounds,shuts off and on and get the lamp indicator. But if you don't hear any strange noises,tv is around 6000 hrs,2-4 yrs,It's major symptoms are clicking,electrical sounds,shuts off and on and get the lamp indicator, it could be time to replace the lamp.The lamp you need is 915P049010. you can find it here: http://www.discount-merchant.com/Mitsubishi-915P049010-Lamp-Replacement-p/mitsubishi-915p049010-lamp.htmHave a blessed one!

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Picture and sound shut off, blinking green standby


MY SONY PROJECTION TV WENT BLANK WITH NO SOUND GREEN LIGHT WAS ON WHATS WRONG

Oct 14, 2009 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Lamp light on. replaced lamp and still no picture .


it sounds like possibly the 3300uf caps on the power supply.
take a look at them and see if they are puffy.

Jan 06, 2009 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Same problem: picture goes out


Sounds like you need to replace the lamp. The owners manual should show you how to replace the lamp. You can order the lamp through Sony on their website. Good Luck

Jan 24, 2008 | Sony KDF-E55A20 55 in. LCD Television

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