Question about Philips Magnavox 51MP392H Rear Projection Television

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51mp392h/17 Magnavox video goes out after a few but sound works

51" Magnavox when powered up it has video for a few minutes but then goes out but the video continues to work?

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  • pontiac2m8 Dec 22, 2008

    Sorry I meant the video goes out and the audio stays.

  • Chrisry696 May 11, 2010

    What I read from you is the sound goes but the video stays? Or did you mean to say the video goes,but the sound stays???

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More than likely the SSB board. Part# 313912725871 cost around $200.00 or more. Plugs into the signal board on it's edge like memory in a computer. The only thing is these sets are junk, and this is just the beginning of your problems. Don't waste your money on fixing this set. They don't hold up to repair. Trust me on this, been fixing sets for over 20 years.....my full time job. Buy a Pioneer,Panasonic,Hitachi,Sony or a high end Sharp WITH an extended warranty. Nothing lasts anymore, but with the above sets, you have a chance of it lasting a few years and getting service if needed. Otherwise the other sets are disposable....no parts available. NEVER buy China made anything!!!! You might get 6 months, then it's ready for the junk pile. No service,No parts, No nothing.

Posted on Dec 24, 2008

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1 Answer

51mp392h/17


If you do not have menu, problem in power supply, supplying the 130v to the high voltage circuit. Check all pico fuses in power supply.

Nov 16, 2011 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

No Sound, No Picture on Magnavox 51MP392H/17


If you hear a constant clicking or chirping sound get the chirping TV repair kit from www.TvRepairKits.com

If you have no video - but have audio - its most likey the HVG.

Note: When the video goes out sometimes its hard to tell if you have audio becuase you can't see the screen to change to the correct channel.

May 08, 2009 | 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...

Nov 11, 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

Magnavox 55'' Projection - Sides come in and out


sounds like Convergence issue.... I have some pictures of the bowing picture TV on the link below...

I'll post you my general message which is for a similar Philips Magnavox 51 inch TV, you'll need to check the manual verify the correct IC convergence chips and resistors, the manual link is below as well... usally the IC's are STK392-120's or 150's and the resistors are 6.8 ohm 12 of then...

anyway read the general post below it will get you headed in the right direction.

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

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

1 Answer

Philips magnavox 9p6034c103


sounds like somthing may have gotten knoked loose in transportation. I'd check all the interneal connections, make sure its unpluged for a few hrs or a day before sticking unexperienced hands in there. there are some high voltage capcators in it. stay away from fat red wires the size of TV cable.

also call the people you got it from make sure they know your not holding them responsible and ask if they fixed anything recently or in the past espically the IC convergence chip and resisitors, usally those go on these sets.

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

Good Luck!

Oct 04, 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...

1 Answer

Tv has soun but no picture


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

Nov 05, 2007 | Philips Magnavox 51MP392H Rear Projection...

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