Question about Philips Magnavox 51MP392H Rear Projection Television

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Magnavox 51" Model # 51MP392H/17 problem.

Just started about 5 years old...the left side (facing it) started going blurry and 3D looking do I need a convergence kit and coolant kit??? Or is it bulb replacement???? and can I really fix it myself??? or is it even worth it????

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I'm sorry to say that Jean is off on this one. This sounds like a convergence issue and cannot be fixed with these knobs. If you set looks like the pictures shown most likely the STK chips (possibly other components) are blown as explained in Ecullier2012's posting. If the convergence went bad suddenly and or you cannot fix it with the convergence adjustments on the set, most likely that is the problem. If it moved slightly out over time then most likely you will be able to fix it through the convergence menu on the set. Many things can go wrong with TV sets and you should really do a lot of research before attempting any adjustment and or repair. There are high voltages present and they can reside even when the set is unplugged. I also have a posting about the STK chips in another section that may help explain things.

Posted on Mar 13, 2009

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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.
Magnavox 51
77ea520.jMagnavox 51
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 Magnavox 51" Model # 51MP392H/17 problem. - 2c07611.png 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.

Posted on Mar 13, 2009

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Http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html



Go to this Blog. It "should " solve the problem.
Really, Really simple, do it your self solution !!
Instructions and pictures included :D

Ken , the poster of that Blog writes........

"The problem is with the convergence via the voltage on the
color ray gun tubes that get out of adjustment.
They are also known as retrace lines."............


This blog covers many makes and models with many
issues solved, just with that one solution

Give it a try, it's FREE and SIMPLE :D


Hope the blog helps you also :)

Jean

Posted on Mar 12, 2009

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2_27_2012_4_36_52_pm.jpg

If it looks anything like the picture (3D etc) it will need the "Convergence circuit" repaired.

Let me know if you have questions.

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1 Answer

Magnavox


Need more info, does it click on and off, make any noises, was the picture going blurry, did you just move it, was in built into a wall where it wouldn't get air to cool???

Here is what I know about the 51mp392h this is a general post below I used for some other peoples fixes without more info on yours I suggest reading thru the below and links and add more info to your post so we can trouble shoot it.
51MP392H/17

Actually I have this TV and you need 2 Convergence IC's STK392-120's (120's and 150's will work) of course order 2 of the same type I'm using replacement 150's they allow for a little higher heat and were cheaper ALSO you need to replace the 12 resistors with 6.8 ohm metal film resistors, make sure they are metal film! don’t skimp out here I did and then they blew and fried my IC's and I had to replace everything again!

Great reference link that I posted pictures on, check out page 3
http://www.techlore.com/forum/thread/16736/Magnavox-51MP392H-17-51-quot--TV-has-double-vision/

Where I got all my parts that worked:
Suburban Electronics http://www.suburban-elect.com/

Manual Library you should find all you need here:
http://www.techlore.com/group/2/list_downloads



What you need:
(2) STK392-120 OR STK392-150 IC chips
(12) 6.8 Ohm Metal Film resistors
set of star screw drivers
15 watt pencil solder pencil, DO NOT use a high watt iron you will fry the surface mounted item.
good leaded solder, and flux


BTW if you don’t plan on trying this and are going to throw out the TV, I still need a IC convergence board for a 51MP392H/17 TV I'm fixing, I'm willing to pay S/H and buy your IC board that’s not been tampered with. Edwinkraus@hotmail.com

Nov 16, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

No Picture No Sound Magnavox Rear Projection Television


51MP392H/17

Actually I have this TV and you need 2 Convergence IC's STK392-120's (120's and 150's will work) of course order 2 of the same type I'm using replacement 150's they allow for a little higher heat and were cheaper ALSO you need to replace the 12 resistors with 6.8 ohm metal film resistors, make sure they are metal film! don’t skimp out here I did and then they blew and fried my IC's and I had to replace everything again!

Great reference link that I posted pictures on, check out page 3
http://www.techlore.com/forum/thread/16736/Magnavox-51MP392H-17-51-quot--TV-has-double-vision/

Where I got all my parts that worked:
Suburban Electronics http://www.suburban-elect.com/

Manual Library you should find all you need here:
http://www.techlore.com/group/2/list_downloads



What you need:
(2) STK392-120 OR STK392-150 IC chips
(12) 6.8 Ohm Metal Film resistors
set of star screw drivers
15 watt pencil solder pencil, DO NOT use a high watt iron you will fry the surface mounted item.
good leaded solder, and flux


BTW if you don’t plan on trying this and are going to throw out the TV, I still need a IC convergence board for a 51MP392H/17 TV I'm fixing, I'm willing to pay S/H and buy your IC board that’s not been tampered with. Edwinkraus@hotmail.com

Nov 11, 2008 | Philips Magnavox 51MP392H Rear Projection...

3 Answers

Magnavox MDL 51mp3964h distorted and waved picutre


Hello pkrocks

It looks like your convergence amplifiers have gone bad, this is a common problem. If your set uses the STK329-110 or STK329-xxx series of amplifier both of them will have to be replaced. There is a lot of information on fixya about how to do this yourself, but you have to be careful in removing and replacing the amplifiers and the associated bias resistors.

I hope this helps

Thank you,

Shuttle83

Sep 15, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

60" Rear Projection TV


sounds like a convergence chip problem...

here is my general post for the 51 inch you'll have to look at the link for the manual and check to see if you have the STK392-120 chips or somthing bigger in the 60"


51MP392H/17
you need 2 Convergence IC's STK392-120's (120's and 150's will work) of course order 2 of the same type I'm using replacement 150's they allow for a little higher heat and were cheaper ALSO you need to replace the 12 resistors with 6.8 ohm metal film resistors, make sure they are metal film! don’t skimp out here I did and then they blew and fried my IC's and I had to replace everything again!

Great reference link that I posted
pictures on, check out page 3
http://www.techlore.com/forum/thread/16736/Magnavox-51MP392H-17-51-quot--TV-has-double-vision/

Where I got my parts that worked:
Suburban Electronics
http://www.suburban-elect.com/
Manual Library you should find all you need here:
http://www.techlore.com/group/2/list_downloads



What you need:
(2) STK392-120 OR STK392-150 IC
chips
(12) 6.8 Ohm Metal Film resistors
set of star screw drivers
15 watt pencil solder pencil, DO NOT use a high watt iron you will fry the surface mounted item.
good leaded solder, and flux

Aug 21, 2008 | Philips Magnavox 51MP392H Rear Projection...

2 Answers

I have a Magnavox 51" Projector TV. Model 51MP392H/17


Hello bullmuscle,

This is a power supply problem, I would suspect the HV power supply because the primary and secondary supplies anymore are tied to the HV power supply. This type of repair requires certain pieces of equipment, to test voltages, look at signals, and to if need be test for shorts in inductors (Switching PS transformer and Flyback transformer). I would not recommend that you try to fix this yourself, The cost for this type of problem is not that expensive and can be done in one evening, if the parts are available. You may be fortunate and it could be just a blown fuse, in the HV or LV power supply circuit

I hope this helps,

Thank you,

Shuttle83

Jul 25, 2008 | Philips Magnavox 51MP392H Rear Projection...

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