Question about Philips Magnavox 51MP392H Rear Projection Television

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My magnavox projection tv has convergence problem.

I took out the circuit board and replaced two open resistors and also replaced the two stk392-120 chips. Put back the circuit board and turned the tv for a few minutes before adjusting the red covergence and still did not improve. I wonder what else could be wrong with the set. It is only four years old set. I wonder if there are resistors that comes with the two convergence IC.

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There are 12 6.8 ohm 1watt resistors in your model. There could be more blown resistors as they often wont show any outward sign of being bad. It could also be the ACS board which is defective if the Resistors are good.

Posted on Apr 22, 2009

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Convergence PROBLEM pHILLIPS mAGNAVOX 60" rEAR pROJECTION


Hi,

All i can say is that this is very common.May be it is not the convergence circuit in this case. it is the power supply not giving the convergence circuit the power it needs to run. there are several parts that need to be repalced here.

Or may be the convergence amplifiers need to be replaced. They're on the Small Signal Board (the one with the tuner[s] on it) and the part on the amp's (there are two on them, replace both) start with STK and will be followed by some numbers and pssosibly letters, such as STK392-110.

Goodluck,
Please don't forget to rate the solution.

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I have aquires a Magnavox rear projection tv. The picture is sharp but is in shades of red and pink. Obviously the green and blue are not working correctly. Any Ideas besides kicking it to the curb?


The tv have a problems known as a convergence pictures problems,the tv convergence board it is dead,that why tv colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?This tv can be repair,by fixing the convergence board,by replacing 2 STK convergence ICS and some or all of it resistors too.Will fix convergence pictures problems.The tvs shops will cost u like $300-350 for parts and labors,to save this tv.

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1 Answer

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.

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2 Answers

I have a picture with red and green lines maybe alittle yellow as well. What needs to be done to fix it? Philips Magnavox 51MP392H


The tv have a problems known as a convergence problems,it is dead.Tv have colors R,G,B lines misalignments,have colors shadow picture or 3D picture look alike?Yes,the tv convergence board it is dead.Must be repair by replacing like 2 STK convergence ICS and some or all of it resistors too on the tv convergence board.To fixed the tv convergence board to solved the tv convergence picture problems.The tv shop will cost u like $300-$350 for parts and labors.

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1 Answer

I cant line the red and green crosses up left and right but i can move them up and down. I have two pics in diferent colors


The tv have a convergence problems,it is dead.Tv have colors lines like R,G,B mis alignments,have colors pictures shadows or 3D pictures look alike?Yes,than the tv convergence board it is dead.The tv convergence board must require replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop will cost u like $300-350 for parts and labors.

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1 Answer

I WAS TOLD I NEED A NEW BULB....IT WAS WORKING FINE AND THEN NOTHING...MAKING A SMALL CHIRPING REPETITIVE SOUND...YOUR THOUGHTS, THANKS


This problems,it is also the causes by the tv convergence board,it dead.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors are dead too.These parts on the tv convergence board,must be replaced to solved this chirping problems.The shop,will cost u like $300-350 for parts and labors.

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Tv has red and green lines


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

Nov 11, 2010 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Magnavox 51MP392H/17


From my experience most people find out their Convergance IC's were the cause and burned out again because of faulty 6.8 ohm resistors or just plain failure to replace the the resistors when they replaced the IC's. sadly if your planning on spending more money I suggest New IC's use 150's instead of 120's ALSO, make very sure you've changed out all 12 resistors and make sure they are metal film resistors.

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 possibly need:
(2) STK392-120 OR STK392-150 IC
chips
(12) 6.8 Ohm Metal Film resistors
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 give up on the TV I'm still looking for a Convergance circuit board yours sounds fried but I would mind trying it out its better then nothing, and ther are a few other people on here looking for parts... so you never know...

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1 Answer

Wavy lines


I have the same problem with this tv. i took it to a tv repairman, and he told me my convergence circuit board was the problem. the circuit board itself is about $300 and the labor to fix it is another $150. So i never got it fixed, cause it's just too expensive.

Jan 03, 2007 | Philips Magnavox 51MP392H Rear Projection...

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