Question about Philips Magnavox 51MP392H Rear Projection Television

1 Answer

Magnavox 51MP392H/17 I replaced the convergence chip and the picture is clear and good, however the colors seem backwards for some reason. For instance the menu colors that are normally blue are now red. And the red parts of the menu are blue.

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  • Richard Turner Oct 08, 2010

    i have tried switching everything that could possibly been switched. Still the same issue.

  • Richard Turner Oct 11, 2010

    If I were to put in the wrong convergence chips what would happen?

  • Richard Turner Oct 11, 2010

    Thanks Jee, you have been very helpful. I will keep you posted on my progress.

  • Richard Turner Oct 12, 2010

    Figured it out! Your assumption is correct. There were green, red and blue plugs on the backside of the board that I fooled around with for some time trying to get it to straighten out. Come to find out there was another board at the front that also were attached to the lamps. I had the red and blue backwards.

  • Richard Turner Oct 12, 2010

    Very helpful!

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This could happen when red picture tube drive jack plugged in blue picture tube jack and vise versa.
Recheck your work and make sure that each CRTs drive connector is plugged in respective jack, just recheck those connectors that you removed to replace convergence chips in circuit board.
Thanks.

Posted on Oct 08, 2010

  • 2 more comments 
  • Shahid Electronics
    Shahid Electronics Oct 08, 2010

    There is no other possibility for that kind of problem.
    Plug connectors of each CRT video signal drive as per mentioned in schematics/ service manual.

  • Shahid Electronics
    Shahid Electronics Oct 11, 2010

    Convergence chips are same number so exchange of location both chips wont effect any thing, if both chips removed, tv will show 3D look picture.
    You tv problem is red gun is receiving blue drive signal that should go to blue gun and blue gun is getting red drive signal that should go to red gun. TV has three picture tubes (guns) Red, Green and Blue to project color picture on front screen.

  • Shahid Electronics
    Shahid Electronics Oct 11, 2010

    No problem, I'm trying to figure out possible cause of problem by providing you helpful info.
    Thanks.

  • Shahid Electronics
    Shahid Electronics Oct 12, 2010

    Good to know that problem solved.
    Have good time :)

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I have a Magnavox 51mp392h/17,that now has double vision (text is double,all images) there is also green, off red colors on the picture. Please help me the tv is 6 years old. should i throw it away or get...


No.Should cost u like $300-350 for parts and labors.Get it fixed any local tv shops can fixed this problems,very common problems for DLP CRTS tubs design projection tvs Tv have a problems known as a convergence problems,it is dead.The tv convergence board it is dead,that why ur tv picture colors lines R,G,B mis alignments,have pictures colors shadow or 3D pictures look alike.The tv convergence board must have it parts replace like 2 STK convergence ICS and some or all of it resistors to fixed the convergence board to solved convergence pictures problems.

Jul 22, 2011 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

My magnavox 51mp392h rear projection tv has a yellowish color on both the left and right side otherwise the picture looks fine. recently replaced the convergence chips, which fixed that problem


Its the CRT fluid.
This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:


  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms

  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

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

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 17, 2010 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Magnavox 51MP392H/17 picture is washed out


no the best thing to do is call a repairman to fix the set so you arent 2nd guessing the parts you may or may not need

Jan 13, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

51mp392H/17...bowing and color alignment off


Take the TV to a repair shop. It sounds like the convergence chips are bad. Be sure they change them as a pair or you'll wind up with the same problem again.

Dec 09, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Philips Magnavox Rear Projection 51mp392h color adjustment


Hello, below in my post is a link to the Manual library. there are detailed instructions on how to adjust the color. it takes time and some steps are difficult but using two people you should have no problem just print them out and go step by step... also I suggest doing it at night with low lights or off, and let the TV warm up for 20 mins.

Good luck, below is my general post with lots of info

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...

1 Answer

Philips rear projection tv-wont turn on


Sounds like your Convergence chips failed, were your red/blue/green colors slowly seperating or was the picture starting to curve on the top or bottom or both? if so see below general post.
Also what model # is your TV and what size?

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 02, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

I have a magnavox 51mp392h rear projection tv and im having problems with the convergance


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 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

Oct 05, 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...

1 Answer

Blue Convergence just went out?


High Voltage Capacitor? Leave the set unplugged for 1/2 hour most components will selfdischarge, as for your problem, being a Magnavox, you have one of two problems, the convergence I suspect is what is blown out, this unit probably uses STK392-110 Ic's, I would suggest replacing with STK394-160e chips as they are probably shorted, some of the big resistors (1 or 2) may be opened up also, usually they change color. The only other thing that would cause usually a yellow color in the corners is the CRT Fluid, it changes from clear to Orange in color and clamps off the blue color from the fringes, I suspect the chips need replacement, dont forget to put some heatsink dope behind them, they are usually on the left in the front of the set (from the back) Big long heatsink that is fairly tall (probably the biggest heatsink in the set.) Good luck, and the repair usually runs around $350.

Jul 13, 2007 | Philips Magnavox 51MP392H Rear Projection...

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