20 Most Recent Sony KP-46WT510 46" Rear Projection HDTV - Page 6 Questions & Answers

Usually an indication that your lamp needs to be changed. They cost about $100 and you can change them yourself.

If it's anything like my rear projection TV, it may have a lamp that needs replacement. After many hours the lamp dims and needs replacement. A new lamp cost about $100 and you can replace easily by your self.

hello, convergance ic are your problem, 2 big black chips that sit on a metal frame called a heatsink , they usually located behind the tuner board, also there some resistor in front of the ic and 2 capacitors at either end, all will need to be tested, it's a big job to do yourself and even bigger job if you have no soldering and electonic experience, hope you can get somethink sorted.

regards
shaun

Hi,

Hi,

This is a convergence issue. By making adjustments in settings, this would not solve the issue. You need to change the Convergence IC.If you want to repair it, revert and i would be glad to guide you.You need to have electronics experience, should know to read schematics ( if required ), could use multimeter and soldering iron.

**Please understand that by opening a TV you are exposing yourself to many dangers, including electrocution. Be sure that the set is un-plugged and keep one hand behind your back whenever possible to avoid a shock through the heart as this CAN KILL YOU. If you have zero electronic experience I would not attempt this repair.**
OK, public service announcement over.



The components that do that job are called "convergence" circuitry. The usual components to fail are the "Convergence Amplifiers" which are usually a pair of Integrated Circuits mounted to a large heat sink. (STK-392 or STK-394) may be printed on the IC along with some number such as 110, 160, 120.

Below is s a walk through on a Mitsubishi, this applies to Sony as well, they all use the same chips and circuits, you will at least be able to see what is involved in the repair.

http://www.techlore.com/article/22530/DIY-Repair-Replacing-Convergence-IC-s-on-a-Mitsubshi-TV-Set/



Also look for burnt resistors around these components, as it is common.If the problem is isolated to only one color the replacing those STK amps and any burnt resistors will fix it. If all the colors are out of whack (Red, green, and blue, like a 3d effect all over) then you are likely looking at a fuse gone bad in the voltage supply to those amplifiers. Usually Sony or Mitsubishi have these fuses. The fuses (called "pico-fuses") are generally orange, or green, with no color stripes like resistors have.



You can look up these parts online easily with the exception of the burnt resistors and fuses which you usually need a manual(which you can also purchase online). The STK's price will vary from $15-$90 depending on which one, and the resistors have to be of the metal oxide type so as not to change value with heat.

One place to get parts is www.partstore.com

You could also get the IC's from even radioshack or Fry's.



If you want a professional to repair it, be prepared to part with around $300-$400.

Let me know,if needed further assistance.

Hope i helped you.

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

Flash focus button push,didn't solved pictures convergence problems.The tv convergence board is dead.The 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.

Tv colors lines R,G,B mis alignment any way,the tv covergence board these parts are dead.The 2 STK convergence ICS and s ome or all it resistors are dead.The shop will,cost u $300-350 for parts and labors.

dodgebrat250,

By blinking 5 times I will assume that you mean the standby light blinks 5 times approximately 1 second apart, then pauses for 3 seconds and repeats. If this is true then you have a fairly complicated problem which could be anyone of three different areas. If you are not trained in electronics you will probably need a technician to solve the problem.

The problem is on the A or C board or it may need the screen drive turned up. One the C board check Q705, 732, 761 and all associated components. Look for bulging capacitors and replace as necessary. On the A board check Q218, 219, 220 and any associated components. Also look for bad electrolytic capacitors as above.

This is only a small part of what the problem could be and without actually looking at the set and doing testing it is difficult to recommend any further action.

I have a tip at http://www.fixya.com/support/r4425498-basic_standard_tv_troubleshooting which might help track the problem down.

Thanks for using FixYa and for the generous rating.

hardrocko

I do not agree with given info by previous expert that has no idea how tv works.
9 times red light blinking shows problem with sound output chip in tv, please check following things to fix the issue or pass it to local tv repairman if you have no electronics stuff fix experience.

/- 19V line is shorted on A and B boards
IC708 is defective on A board
PS701 or PS702 (both are fuses) is blown on A board

Hope these info will help you.
Thanks.

Sounds like a convergence failure, here is a tutorial I made:
http://www.fixya.com/support/r5001731-convergence_diagnosing_convergence
Let me know if I can be of further assistance.

here is a tutorial I made:
http://www.fixya.com/support/r5001731-convergence_diagnosing_convergence
Let me know if I can be of further assistance.

Sounds like a convergence failure, here is a tutorial I made:
http://www.fixya.com/support/r5001731-convergence_diagnosing_convergence
Let me know if I can be of further assistance.

I have the same problem and would love to find a solution!

The tv have a problems known as a convergence problems,it dead.Colors R,G,B lines mis alignment,have colors shadows,and 3D picture.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts are dead,must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Yes there is, you can first go into the customer menu and select convergence--see if it will or will not adjust in that area. If you are willing I will tell you how to get into the tech menu to do the same thing; understand if some part of the screen will not adjust in customer menu--a bad convergence IC.

This model should use two of the STK-392-560 CHIPS FOR THIS--about 14 dollars on Ebay for a pair.

If this is the case I can tell you how to do the repair--total parts cost should be under 25 dollars.

Try adjusting with the Sony remote in the customer menu first.


I have fixed hundreds of sets with this problem--many were Sony.

See attached photo of typical convergence problem and photo of typical convergence chip.

If this told you something you did not know rate this solution as very helpful.

SD TECH


Number will be on front of the chips and they are side by side on a board with two metal plates with fins on them.

Yours should have STK-392-560 ON THEM.

Your TV has a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.

Here are some photos of convergence problems.




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 will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Thats a convergence Failure. You can get the Sony type 1 convergence repair kit which works for your model at www.tvrepairworld.com the kit contains the parts and the CD with instructions.

The part number is A-1302-177-A
At partstore.com it costs $501.95 but you can probably get it for around $300
Google just that part number above and some options will come up.

YOU will need to replace the convergence chips--should be either STK0392-150 OR STK-392-560 CHIPS AND BOTH ARE LOCATED ON THE SAME BOARD--TOTAL PARTS COST UNDER 30 DOLLARS ON ebay.


DO YOU HAVE SOMEONE HANDY THERE WHO CAN SOLDER ETC IF I provide assistance>

see attached photos.

If the photos or info I just provided helped, rate this solution as very helpful as I do this here for free. If you have questions reply to this posting and I will help.

SD TECH

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.
• TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.

Here are some photos of convergence problems.






Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

CONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

it will need a new light board or you will need to turn the brightnees up