MAGNAVOX 37MF331D 37 SOUND BUT NO PICTURE

Screen just went blank, audio is fine but no picture

5 Related Answers

Abcd

70 Answers
Posted on Jul 07, 2009

Disconnect the LVDS Cable that runs from the small signal board to the display panel and apply power,if the screen comes on,the Small signal board (aka Scaler Bd ) is the faulty board. other than that,all that's really left that has gone bad for me is the logic board.

Anonymous

11 Answers
Posted on Aug 30, 2009

SOURCE: magnavox 37MF331D/37 keep asking for software upgrade

Your set either has a bad SSB (small signal board) or needs a software upgrade. Try the upgrade first by going to http://www.m4c.magnavox.com/cgi-bin/dcbint/cpindex.pl?scy=US&slg=AEN&cat=FLAT_TV_CA&sct=LCD_LARGE_30_40_SU&grp=TV_GR&session=20090830171041_4.131.87.247&ctn=37MF331D/37&mid=Link_Software&hlt=Link_Software
Download the latest software release for your set then follow install instructions that are contained in the user manual for your set.

matt martin

1259 Answers
Posted on Jan 07, 2010

SOURCE: magnavox 37MF331D sound and picture fine, no

The problem is in ssb. [scale board] I call it the signal board. But briefly part, location 1H00 [color crystal] PN#823827736071 needs replaced. And caps locations 2H08 and 2H09,PN#223886975478 need replaced. Hope this will help you...these are surface mount repairs that require skills!!!!

Testimonial: "Thank you so much for answering my question so quickly. Now I can call the repairman and see how much he will rip me off! Thanks again."

matt martin

1259 Answers
Posted on Nov 13, 2010

SOURCE: can i use a 1000uf

Absolutely NO! Although it may be close, you will find a poor startup just as if the set was still bad. The capacitor you need is of course a 25 volt 1200MF. In this case a 35 volt 1200MF will work. I would suggest in this case a next up voltage with the correct MF. In this case the best sub is the 35 volt 1200MF. Check out Matelectronics.com. or MCM Electronics.com or Mouser Electronics .com. If you have a local Electronic supply store they may have what you need. I do not believe you will find it at Radio Shack. Thanks for asking and show a few hands of support!

Anonymous

3 Answers
Posted on Jan 27, 2011

SOURCE: I have a magnavox flat screen 37 inch 37mf231d/37

the problem is the picture board replace it

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