20 Most Recent Sony Grand WEGA KDP-51WS550 51" Rear Projection HDTV Questions & Answers

The picture tube is getting close to failure. Has the picture tube been replaced before? If it hasn't it is probably about due the Vegas were great long lasting T.V. sets but after about 15 years need a new picture tube.

Sony Grand WEGA... | Answered on Jan 15, 2013


Sony Grand WEGA... | Answered on Oct 05, 2012

If i remember correctly ten blinks means a high voltage error.
The only thing you could try is unplugging the power cord then plug it back in and try turning on the tv. If it still won't turn on try unplugging the power cord for five hours or longer and try again. If it still won't turn on it would be best to find a local repair shop that works on sony tv's and have them repair it for you.

Sony Grand WEGA... | Answered on Mar 01, 2012

The red flashing light is an error code. How many times is it blinking?

Sony Grand WEGA... | Answered on May 28, 2011

Hi, 5 times blink of standby light shows that TV needs White Balance adjustment. No need to dump it, adjustment is also not so difficult. Let me know if you want to give it a try to guide you.

Sony Grand WEGA... | Answered on Mar 12, 2011

Check your soldering. Check the vertical power board on the far left when looking from the back. It has fuses on it as well.

Depending on quality of STK chips, they could have been bad or failed right away. Best things is to look at the schematic, verify what colors you can move and see which STK chip is not functioning.

If both chips are not function after replacement, likely a fuse. Be sure to verify the resistors next to the STK chips.

Sony Grand WEGA... | Answered on Mar 08, 2011

Hi Kimber,
The main reasons of your problem is the bulb which is already faulty to its end. The unit will automatically shuts off when it sense a bulb failure. But before you replace the bulb I would advice you to work first on itspower supply. Look for open fuse/fusible resistor and spot some bad solder joints. This will do the same symptoms like what it showing now. If you don't have necessary tools and test instruments, and can't do the job yourself, I would advice you to look for a professional to troubleshoot the problem. Don't attempt to work in the power supply if you don't know the safety precaution of handling it, there some stored electricity enough to hurt you with a little mistake only.

Hope I helped you.
Have a nice day!

Thanks for using Fixya

Sony Grand WEGA... | Answered on Mar 08, 2011

Hi, Elgin.
If it is onlt the power supply that is causing the issue, then it can be repaired fairly inexpensively.

However, alot of times, it might seem like it's the power supply, unly to find out that it is in fact bad capacitors that are causing the failure.

If it turns out that the capacitors are going out on you, then you may want to consider a new tv, as the cost of repair can sometimes be very expensive to fix.

I have seen tv's get repaired die caps failing, and after it was all said and done, they could have just went out and bought a brand new tv, for less than the cost of the repair itself.

The reason capacitors fail is due to poor manufacturing quality, be it workmanship, cheap casing material, improper formulas for the capacitance gel, poor quality welds, low quality solder, or just the fact that the parts are sometimes made in parts of the world where profit is the companies only concern.

From around 1995 until 2006 or 2007, there was a flood of these cheaply made capacitors, and they were put in everything from toasters, to subwoofers, car stereos, computers, microwaves, blood pressure machines, and on and on.

High quality caps should last between 25-40 years, but these cheap ones are sometimes lasting less that 1 year before failure.

I hope this gives you some ideas about your tv, so that you can make a proper decision on repair or replacement.

Sony Grand WEGA... | Answered on Feb 10, 2011

This is an indication of Leaky electrolytic capacitor on the power supply section.
It will produce an unregulated supply once sense by the processor it would not power up the unit.Leaky capacitor needs a little warm-up to function normally. The symptoms will get worst if not isolated the faulty parts.
This is not DIY. I've advice you to send it to repair shop or look a qualified technician to fix the problem.
Hope that it may help you.
Have a nice day!
Thanks for using fixya.

Sony Grand WEGA... | Answered on Jan 31, 2011

It means that you will have to replace the horizontal and vertical deflectio ICs and also any resistors that may have taken them out. How good are your electronics/soldering skills?

Sony Grand WEGA... | Answered on Nov 30, 2010


You need to check the D board.

Page 66 of the service manual lists the appropriate voltages:
Q8013 136.0 4.5 GND
Q8014 305.0 131.0 136.0

G to anything should be infinite. S (black lead) to D (red) should be a forward biased diode. D (black lead) to S will likely be infinite. I think.
Testing transistors with a multimeter is a speculative art unless the transistors are most sincerely dead.

Also, service manual page 66:
1 2.5
3 9.9

IC8005 this is a programmable voltage reference, and should just be tested in circuit.

Each of these transistors is maybe $15. IC8005 (8-759-586-17) is about $8.
The whole board, which I think subs to 9-910-999-Y1 is about $70

My advice? Just spring for the board. It's not expensive and is pretty much a guaranteed fix.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Sony Grand WEGA... | Answered on Nov 26, 2010

I hope our experts have been provided you helpful info in chat session about tv problem yet you can let me know if further help is needed as being Sony tv tech I can help you more.

Sony Grand WEGA... | Answered on Sep 21, 2010

my picture is not good .the colours is yellow

Sony Grand WEGA... | Answered on Jul 15, 2010

so the your projection prob.. are the internal prob.. and i think for on the circiute sapose EHT ,CAPESTOR TRANSISTOR .so many kind of problam on circiute

Sony Grand WEGA... | Answered on Apr 13, 2010

standby light blinks 9 times and tv will not come on

Sony Grand WEGA... | Answered on Mar 18, 2010


Thanks for using FixYa. From what you have described it seems that you have to replace the convergence IC and check power resistor for leakage, if values are not exact you have to replace them. The typical cost to get this fixed by a pro is about $300 - and it doesn't mean that he/they will do a job better than you do. The parts are less than $100 (about $20-$30 for the IC's) if you want to do it yourself. Replacing only the IC's MAY solve the problem; however, many people have also had blown resistors requiring replacement. Why would you ask should you replace both of the IC's if only one is shot?! If one is shot the other one is not far away and for that little price of the chips it worth changing them both at the same time. Also the convergence board should be checked for cracked solder. If you replace the ICs and the resistors are shot, the ICs may blow again almost immediately, meaning you may have to do the repair twice. Please do accept the solution if the issue is resolved or else revert for further assistance.


Sony Grand WEGA... | Answered on Mar 11, 2010

you will need a ohm meter.....check IC406, audio amp,PS401, PS402,flyback T8005 high voltage on D board,.....you can get parts at Mats Electronics # 1-800-628-1118

Sony Grand WEGA... | Answered on Feb 17, 2010

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