Question about Sony KP-51HW40 51" Rear Projection Television

2 Answers

Red color offset to the right

I have a Sony KP-51HW40 (bought back in 2002) that recently the red color is offset about 3 inches to the right so you can see the red shadow. Everything else seems to be working fine. I have the service manual and tried to adjust the PJE Red settings but could not make it work like before. The Timer/Standby indicator blinks 4 times which the manual says mean IC8003 fault. The PJE ERR code is 111 which the manual says it means the Red Sensor 1 low output. I think it is a hardware part failure but before I open the TV and try to debug and start replacing part, do you have any recommendation what to look first and how to proceed?

I saw an entry in this forum to replace IC8003, where can I get this part? Another entry says to replace the Red Convergence Board, is that the same as CR Board (A-1332-240-A)? Where can I get this board? Another entry says check the blown fuse, which particular fuse should I be looking at. The manual list several fuses. I have a voltmeter, any other thing I should be looking at?

Thank you for any input.

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The two ICs are called stks and this set uses the STK 392-110 (I am pretty sure) made by Sanyo. They are available online for $6 and up. Stay away from the cheap ones. I would try partstore.com first.

Replacing them is not so difficult if you have replaced an ic before and know how to ease them out without destroying the foils. Then solder the new ones in. But be sure to apply the grease carefully; otherwise they will overheat and burn out too soon.

Good Luck,

Posted on Oct 08, 2008

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YOU SHOULD CHECK FIRST THE CONTINUITY ON EACH PART BEFORE REPLACING EACH ONE OF IT

Posted on Oct 08, 2008

  • micromaster
    micromaster Oct 08, 2008

    A variety of issues can influence poor picture quality,
    including settings on the TV, electrical devices in close proximity to
    the TV, and connection issues with the signal source. Follow the steps
    below to troubleshoot issues related to poor picture quality.
    IMPORTANT:

    NOTE: If
    model-specific information is required to complete any of the steps
    below, refer to the operating instructions supplied with the TV.
    Manuals are available online in the Manuals/Specs/Warranty section of the Sony Support Web site.


    1. Make sure there is no glare or reflection from an external light source on the TV screen.

    2. Turn off any electrical or battery-operated devices that may be creating radio frequency (RF) interference. NOTE: Vacuum
      cleaners, fluorescent and halogen lights, and some battery-operated
      devices (including toys) have been known to create RF interference.

    3. If your TV has a Digital Noise Reduction (DNR) function, turn this feature on.

    4. If your TV has a Digital Reality Creation (DRC) feature, try turning it off or on.

    5. If your TV has a Sharpness or Picture Mode setting, try adjusting these options. NOTE: If the television menu is fuzzy or blurry, then service may be required.

    6. If you have a projection TV, try adjusting the convergence of the picture tubes.

    7. Try plugging the power cord into a different electrical outlet and/or surge protector. NOTE: These
      symptoms can occur if the wall outlet is improperly wired or not
      producing the proper voltage. If using a surge protector or extension
      cord, it also could be faulty.

    8. If the issue is still not resolved, select the appropriate device below to troubleshoot the signal source and connections.


×

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1 Answer

My Sony big screen rear projection TV model KP=51HW40 produced 2002 screen flashes red then shuts off. We can turn it back on and it will run for 30-60 minutes and then it repeats red flash. Is this


The Problem you are having is a Cathode to Grid Short in the Red CRT,When it Shorts the screen will Go all Bright Red and shut Down,The Best fix Would Be to Replace the Defective CRT (GUN)

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No,any colors lines mis alignments.The tv convergence board parts are dead.The 2 STK convergence ICS and some or all it resistors are dead.These parts must be replace on the tv convergence board.To solveved convergence problems.The shop,will cost u $300-350 for parts and labors.

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This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 09, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Text/images overlap each other in 3 colors, 3D distorted picture


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.
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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.


2c07611.pngSolution


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 email and they will put one together for you. Their kits includes photo instruction guides, original Sanyo STK chips, convergence resistors, pico fuses, etc.

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Picture with red 3-D effect


IC8001, STK392-560 seems defective, its convergence output IC.

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Reducing voltage for Sony KP-51HW40


G2 = screen...On the screen controls behind the front grill, behind the hardboard. 6 pots, 2 rows of 3 pots. 3 for focus and 3 for screens. 1 for each of the the red, green and blue guns/crts.
To adjust: Run set, change to black screen with tv/video button. Dial each screen clockwise untill you see a color. Then counterclockwise slowly untill that color goes black, then stop. Do this for all 3 screen controls.
If you need to adjust the focus then bring up lettering. I use the QVC channel for this. Focus is done by eye.

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Sony kp51hw40


did you adjust the green screen control .

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