Sony Grand WEGA KF-42SX300 42" LCD TV - Answered Questions & Fixed issues

Type short version of your question into google along with your model number. You might get lucky.

Check the options of contrast or tint, if your adjust them to your preferences then maybe it will work, or maybe it is just old. Glad if I helped.

Four blinks denotes a fault with its main board. It will be best to contact any service technician in this case. If you're sound in electronics, check this link It has blinking codes details to many brand TVs. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

It may be the lamp this model uses about the fail completely.

tried to check first the power supply if no any sign of bulging electrolytic capacitor this was a common that we encountered trouble.

Sony sets usually if a problem the light will blink a specific number of times and pause and keep repeating that error code.The answers are usually general in nature.

HDMI is prone to this--If you connected with the set (TV) on you may have caused this issue.In our shop we get a lot of this and if a box was being used (cable HDMI) the box needs to be rebooted.I would at least try unplugging the TV from power--wait and try to boot it up again(set with power disconnected and then powered again will try).Restart the laptop, with the cables (HDMI) REMOVED AND THEN INSTALLED AGAIN BEFORE YOU APPLY POWER TO THE SET.This may or may not help but is worth trying.Failing this it may be a setting in the laptop or a mismatch between the two units.

You need to remove back and look inside TV.

Hi there,Well he answer is Yes it's a HDTV ready. Post comments if you need any further information..Good Luck

Hi,
If it flashes 3 times, make sure that the lamp, lamp cover and its screws are seat-in properly. Double check the said parts above and let me know if the symptoms still persist.
Jdvillanueva

Good day!

You have a better chances if you have failing capacitors on the power supply section.

Follow this procedure on how to replace the capacitors.

1. Remove the back cover of your TV.
2. Look for the power supply board.
3. After that,look for the leak or bulged on the top capacitors.
4. If you found ,replaced it with the same type,ratings and value.
5. And finally after you replaced bad capacitors on the board,plug-in your TV and power it ON to test if it is OK.

I hope this solution will be helpful.Thank you and good luck.

You need to replace the defective electrolytic caps on the power supply, or just replace the power supply module.

1. If your Sony Wega will not turn on, the front green light blinks, you hear a faint whirring sound and the green light turns red and flashes, it probably means the lamp inside the set is no longer working. If you noticed the screen beginning to dim in the preceding days or weeks, this most likely is the cause.
   

2. If the green light flashes and the picture comes on momentarily but then goes off, and the green button flashes until the set restarts, then the seal around the lamp mount is loose and needs to be refitted.
   

3. If the picture on your Grand Wega cuts in and out and the green standby light flashes, both of the set's STKs need to be replaced. STKs are small chips on your television's circuit boards and are identifiable by their labels. The specific STKs used in your Grand Wega TV will be identifiable by the numbered labels on top of the STKs.
   

4. When you plug in your Sony Wega and hear a loud popping sound, it's probably caused by a defect in the high-voltage circuit. Let the professionals take care of this one.
   

5. If, after turning on your Sony Wega, you can hear your set but the screen is black, you most likely need to replace your projection lamp.
   

Read more: How to Troubleshoot a Sony Grand Wega ' eHow.com http://www.ehow.com/how_5243554_troubleshoot-sony-grand-wega.html#ixzz1EoY37gpC

Try a Degausser and degause the screen this should do the job.

hello go in to the menu click on auto tune

regards
shaun

Hi slagassemd.

I had a similar problem with my 42 in Philips LCD HDTV. I may have the solution to your problem.

Here was MY problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.

Here are some options for you to consider.

1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. They can be found online. I would definitely shop around though.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.

This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It will, at the very least, give you a general idea of the process. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem.

Hope this helps.

If you have any questions for me, please comment on this page. I will be happy to assist you to the best of my ability. Thanks for using Fixya.

Kaufman605

If this is happening with different remotes, then the first thing I would verify is whether its an IR sensor issue. Does the same thing happen when you are using the front panel controls on the tv?

I had a similar problem with my 42 in Philips LCD HDTV.

Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.

Here are some options for you.

1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found online. I would definitely shop around though.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.

This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.

Hope this helps and if it does please rate it accordingly. Good luck.

It sounds like it has a defective Optical Block. It is a very common problem. Sony had extended the warranty on a lot of these models. I do not know if this model still qualifies. you can find out by calling 1800-222-SONY. Even if it is not, they have been a little liberal and may help with the parts cost. The Optical Block would normally run around 750.00 to 900.00 depending on model number.
It would be a major tear down to replace and I would recommend a authorised service facility to be involved to replace it. Sony could also help to find one for your area
I hope this helps,
Skyassoc

Most common problem is Bad Capacitors they will be vented or puffed up on Top. 2200uf 10v 3300uf 10v 1000uf 16v