Question about Zenith R60V26 60" Rear Projection Television

4 Answers

Convergence still bad after replacing IC's

I replaced the two IC chips but picture is even worse than before

How do I set the color markings or reset? (Red, Blue)

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  • Rob Owen
    Rob Owen Mar 01, 2008

    My model is a Zenith R60V26

    I checked resistors and found none bad on convergence board. Did not see any cracked solder joints.

    The fuses I did not check, which one's?

    IC's I used to replace were Sanyo stk394-250
    Originals were STK392-110's

    Red convergence was way off originally now both are and will not
    move points in EZ focus (9)
    Could be crappy generics, bought from Blue-star.

    All ideas are greatly appreciated!!!! Will try comments posted and update as soon as I can but might not be for another week,

    Thankz everybody.

  • Rob Owen
    Rob Owen Mar 01, 2008

    If any one has a service model, that would be very helpful.
    Zenith R60V26 HDTV w/composite cable inputs
    I have a good background in Electronics as I graduated from a Technical school in Telecommunications and limited energy systems, so I can troubleshoot fairly well when I know what to be looking for. The forums I reviewed seemed to point to convergence IC amps as the sure deal and blown resistors. I'm open to any possibilities. The set was made in 2002, my 36" has outperformed it already, but this one I inherited from my dad and I want it to last till I can get hold of a flat panel, that means till my wife let's me.

  • Rob Owen
    Rob Owen Mar 01, 2008

    Techman, I got info from TV repair discussion posting on-line

  • Rob Owen
    Rob Owen Mar 01, 2008

    Where do I find good one's ? (IC's)

  • Rob Owen
    Rob Owen Mar 01, 2008

    http://www.hdtvoice.com/voice/printthrea...

    Here's where I got info for IC's

  • Rob Owen
    Rob Owen Mar 03, 2008

    I was unaware that they were truly that expensive for 1st Quality.

    I went price searching and found one at 29.99 at Ebay but thought they were just overpricing. Others I found were no more than $10.00

    Is that how you find the real ones is expecting to pay no less than $35.00 a chip? Electronix was selling a 2 chip and all the resistors kit for $40.00 I'm getting confused already as who to trust with legit and guaranteed parts! (stk394-250)

    Thankz again for all solutions, If I need no less than $100.00 to get this rolling It may be awhile till I can post a success. The forums I read made it sound to cheap, it was my first internet fix research so-to-speak.

  • Rob Owen
    Rob Owen Mar 04, 2008

    Thanks techman and Terryiffic for two sites that look way legit, now why the big price difference? Andrews Electronics wants no less than $35.00 a chip. The other you can buy two for $24.00 and they guarantee them to be 100% original, not china-made...
    I think I'll go after Techman's link option as I'm trying to make this as inexpensive as possible. It's just a project I will not come and hunt you down if these ideas fail. TV's I see can have a handful of problems which may or may not be specific related. Trust me I know I'm in a similar field of work.
    What about the idea of buying a complete convergence board, what is that price tag?

    Thanks again for you're excellent support and advice! Will keep post updated

  • Rob Owen
    Rob Owen Mar 19, 2008

    Okay I replaced the two IC's with Sanyo original's from Techman's site listing electronic-repair kits.com.

    And my TV is back to 100% great picture! No convergence issues whatsoever. If you replace do spend the time to get the correct technique and solution. When I replaced with wrong chips I could of done more harm than good. I really only worked on this because of my Technical background (computers, networks, and electronics)
    and because it was given to me, so I had nothing to lose.

    Thanks for all the info. RSO

  • Vista Electronics May 11, 2010

    Techman's questions need answers........



    Yoke connections and vertical IC irrelevant at this time......

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Hi, First I would check to see if you have put the correct yoke connection that goes to the defflection coil of the picture tube's.
Next I would make shure your voltages supply to the convergence it's or there +/- about 25volt , this could have burt the fuse or resistore in the power supply.
Next cheap china ic's can't depend on them hope you have install japan, origenal ic's. I've seen bad ic's and totaly wasted my time just to save $1 or Two.
Next if you give your model, I would have a better clue what section mite have cause it, could be vertical ic's not enough info and a picture would be nice.

Regards

What About Bob

Posted on Feb 29, 2008

  • robert landry Mar 01, 2008

    Hi , I don't think both ic's or replacable, I think this is were you went wrong. I'm still looking on sanyo web site to see what the pin's or, Meanwhile you may have cause more problem,

    My email address is rlandry@vianet.ca



    Regards

    What About Bob

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Replace IC's with ZENITH part number for STK392-110 or
with TOSHIBA or NAP or PANASONIC or any OEM first quality IC ! I use HITACHI part # CZ 01341 which is an upgrade
approved sub for STK392-110,-120,-150......It's GENERIC # is
STK394-160E MFR by SANYO......NOTE: GENERIC IC's are
a complete waste of time no matter what the "price savings"..
Techman and I have written these type of solutions repeatedly
and the bottom line should be DIY to save labor, but DO NOT
use generically labeled IC's unless you are POSITIVE they are
FIRST quality.Hope this info helps many in the future......T.

Posted on Mar 02, 2008

  • Vista Electronics Mar 02, 2008

    Tomorrow I can give you a list of options.......#1 supplier of

    OEM parts for me is Andrews Electronics......T.

  • Vista Electronics Mar 04, 2008

    My 30 years in repair business says = best,first quality part

    by the Original Equipment Manufacturer ( OEM ) will have their

    # on it.....Example = CZ 01341 is Hitachi first quality STK394-160E......23135090 is Toshiba first quality STK392-110T......So,

    if you buy the GENERIC number Stk39x-xxx from ANY PARTS

    Supplier,they will guarantee them good,new IC's with the specs

    sufficent for some applications,but not all. It is the MFR who

    sets the level of part quality,not the part supplier.Note: KIT parts

    are sometimes lower quality to get the cost down.......Also,

    parts are made ww now,China, Thailand,Korea,etc....best have

    MFR # on the bag....Less than best......generic.Therefore,

    the issue is not where a part is made as much as it is really a cheaper reject of MFR specs of tv you are trying to fix......T.

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Brand and mod # please

Posted on Mar 01, 2008

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  • 3,130 Answers

What type, brand or model number is the TV set you have there? Your question has no information in it.. It could be many things with different types of sets. Have you checked for blow resistors around the IC's? Did you purchase good original IC's or inexpensive aftermarket types? Have you checked the plus and the minus power supply fuses or circuit protectors that feed the B+ to the IC's? Way to many things could still be bad without the right information given.

Posted on Feb 29, 2008

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1 Answer

The colors in my tv are overlapping and picture is wavy that cannot be solved with adjusting the manual converge function and got worse when I tried restore manufacture settings


Bad STK392-120 convergence IC. You need to replace 2 both and also check feedback/return resistors. Convergence IC is located on large signal board with a big heatsink. :)

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I have a phillips 55pp935217 and I am having trouble "syncing" the picture. I have tried the factory convergence setting and it just seem to get worse. If I manage to get the red and blue multi point...


You need to replace the two STK-392-120 convergence IC's and any of the 6.8 ohm protect resistors near the 3 plugs to the left and front of them. Then adjust the set in the TECH menu.

You can buy the 2 chips for less than 15 dollars plus shipping on Ebay--see Sewsales----Suburban Electronics--they have the best price and give a 6 month warranty.

I can if you need give you specific instructions on how to get at the chips and also the entry code for the advanced convergence alignment--if the set will not adjust in some way one or both of the chips are bad--the 6.8 ohm resistors are a light color--open or bad ones will be discolored in the middle--they can all be tested like checking a fuse with any ohm multimeter.


I do this here for free so if this helps, give me a vote here. If you need detailed instructions or have questions.

etower.766@netzero.net

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I was watching my HCL4715W TV and the picture


It sounds like one of the convergence Ic chips is bad---you will need to locate and replace both of them and look for any damaged parts around them; there usually are two pico fuses in this area, one for each IC. The fuses do not look like glass fuses--they usually are green or orange in color and will have the amperage marked on them and on the top of the circuit board.

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My picture on my Hitachi 51F710A has a very strong red/pink tone over the entire screen but is slightly worse on the left had side. I've tried all the adjustments on the menu including the magic focus but...


Your TV most likely has a Convergence Chip 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

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2 Answers

Bowing at top and bottom, can't adjust convergence replaced IC


Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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 #1

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.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

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Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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 #1

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.

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Convergence Issues


Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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 #1

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.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

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Did you replace the resistors when you replaced the convgence chips? If one of them was bad you would still have the problem.

Here are some of the most common symptoms and example photos.

  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

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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Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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 #1

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.

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Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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 #1

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.

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