Hi. It seems that the g2 voltage of the picture tube is too high, resulting in a white screen, often with white horizontal lines. The g2 (= second grid) voltage is derived from the flyback high voltage. The voltage divider is mostly integrated in the flyback trafo housing.(including the adjustment knobs). A failure in this divider may lead to this defect. The static you hear may come from sparking in the divider. The flyback trafo is soldered onto the main printed cirrcuit board. Sometimes, one of the pins sits loose in the soldering pads.
Turn on the set and observe for any sparking around the entire flyback circuitry, and, or the flyback trafo itself
The screen turns black after a while, as a too high beamcurrent is detected. The set disables the flyback. Stand-by blinks meaning that there is a fault condition.
Be carefull with the high voltages. The flyback voltage is very high (20-30 Kilovolts !) and may be lethal !!
SOURCE: sony projecting tv kp-57wv700
Based on service manual info, it cant blinks 7 times as per symptoms, please count again blinks. It can be 5 times.
If its 7 times blink, Horizontal Deflection stopped in this case. If you want to repair it at your own, please let me know to guide you further but it is necessary you should have knowledge of electronics.
SOURCE: Blue light on bottom of screen of Grand Wega KDF-60WF655
You have a bad optical block. Sony has extended the warranty for this part and is covering the repair for free. Go here for more information:
http://esupport.sony.com/perl/news-item.pl?news_id=206&mdl=KDF60XS955
Be sure to rate this solution. Thanks!
SOURCE: sony projection tv kp-57wv700 please help!!!
Follow these instructions:
http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html
They have fixed dozens of tvs with this problem, including mine.
SOURCE: Blue to Black screen on Sony KP-57WV600
Rowdyroddy,
Thanks you so much for this info.
I had the same problem with my Sony KW-57wv600. Blue screen turns black after a few seconds, and then standby light flashes seven times.
I called a local TV technician, and described problem. I was told it would not be cost effective to fix. After reviewing the "simple" instructions given on www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html I figured I had nothing to lose.
10 minutes to remove front panel, a "very slight" turn of a screw, and TV worked again perfectly. I could not believe it!
Thank you so much for your help!
SHAME ON SONY FOR NOT POSTING THIS FIX ON THEIR WEBSITE! SHAME ON THE TECHNICIAN AT SONY WHICH INSISTED A SERVICE TECHNICIAN WAS REQUIRED.
I have always been a fan of Sony, swearing by Sony products exclusively. After this experience, I am now forced to consider some other options when purchasing electronics in the future.
SOURCE: Sony TV rear proj works but color is blue
Problem : Convergence Chip Failure ( common problem )
Here are some of the most common symptoms and example photos of a convergence problem
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.
Solution :
You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com.
They have put together a kits for most models. If you don't see a kit
for your set send them a quick note and they will put one together for
you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.
I hope this will solve your issue.
Good Luck.
If my solution proves useful please accept it.
Regards
Arjun
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