magnavox 37mf337b/37 parts advice

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  • zombslayer
    Member
    • Aug 2012
    • 16
    • USA
    #21
    Re: magnavox 37mf337b/37 parts advice

    Parts are on the way! Checked D912 out of PSU it came back faulty. I will be using UF4007 diode for that replacement.P6KE120ACT ZD will be used for ZD902 ,and the three caps will be replaced with Panasonic EEU-FR1V102. Killian6pk, great point! Its alot easier to look at a pic than have to remember everything. I will update with progress as soon as parts are installed. Thanks again! Much appreciated!

      Comment

      • selldoor
        Slow Learner
        • Dec 2010
        • 7870
        #22
        Re: magnavox 37mf337b/37 parts advice

        Originally posted by zombslayer
        Its alot easier to look at a pic than have to remember everything.
        It is one of the reasons I press people to supply good clear pictures - they also
        help with future queries when parts are burnt out.
        Please upload pictures using attachment function when ask for help on the repair
        http://www.badcaps.net/forum/showthread.php?t=39740

          Comment

          • RICHARDRAY
            New Member
            • Nov 2012
            • 1
            • U.S.A.
            #23
            Re: magnavox 37mf337b/37 parts advice

            ANYBODY OUT THERE CAN HELP ME WITH A PROBLEM WITH MY MAGNAVOX 37MF337B.. THE MAIN BOARD IS BAD OR SO I HAVE BEEN TOLD (PROIR TO THAT IT WAS A POWER SUPPLY WHICH AFTER I REPLACED IT THE REPAIR SHOP SAID IT IS NOW THE MAIN BOARD) I WAS LOOKING FOR ONE ON EBAY AND LOCATED A BOARD THAT THE GUY CALLED A T-CON BOARD PART # 6870C-0088D VER.1.. IT THIS THE BOARD i NEED ? BETTER YET, IF YOU CAN SEND ME TO A WEBSITE THAT WILL SHOW A SCHEMATIC, DIAGRAM OR LIST OF PARTS FOR MY TV SO I CAN "SEE" WHAT I AM LOOKING FOR.. I SEEN THIS BOARD BEFORE WHEN I BOUGHT MY POWER SUPPLY BUT CAN'T FIND IT NOW NOR KNOW THE LANGUAGE SO ANY HELP WOULDBE WELCOME.

              Comment

              • tom66
                EVs Rule
                • Apr 2011
                • 32560
                • UK
                #24
                Re: magnavox 37mf337b/37 parts advice

                PLEASE DO NOT TALK IN CAPITAL LETTERS. IT MAKES IT SEEM LIKE YOU ARE SHOUTING.

                It sounds like the repair shop doesn't know what the fault is, I wouldn't trust them. They sound like they just swap boards rather than try to diagnose the problem.

                Here, I just uploaded the service manual:
                http://www.tgohome.com/ServiceManual...&Search=Submit
                Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
                For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                  Comment

                  • ryan74
                    Badcaps Veteran
                    • Oct 2012
                    • 471
                    • usa
                    #25
                    Re: magnavox 37mf337b/37 parts advice

                    I need help identifying, or finding a replacement zener diode.
                    I cant find a free datasheet for crossreference, and I dont know enough to figure it out myself.
                    Location(zd906) and part number(LT7228 P4KE250A)
                    Attached Files
                    Last edited by ryan74; 12-29-2012, 12:27 AM.

                      Comment

                      • budm
                        Badcaps Legend
                        • Feb 2010
                        • 40746
                        • USA
                        #26
                        Re: magnavox 37mf337b/37 parts advice

                        @ryan, that must be one those common failure diode in the snubber circuit, do not try to run without having new one installed.
                        http://www.mouser.com/Search/Product...p%252btw%3D%3D
                        Never stop learning
                        Basic LCD TV and Monitor troubleshooting guides.
                        http://www.badcaps.net/forum/showthr...956#post305956

                        Voltage Regulator (LDO) testing:
                        http://www.badcaps.net/forum/showthr...999#post300999

                        Inverter testing using old CFL:
                        http://www.badcaps.net/forum/showthr...er+testing+cfl

                        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                        http://s807.photobucket.com/user/budm/library/

                        TV Factory reset codes listing:
                        http://www.badcaps.net/forum/showthread.php?t=24809

                          Comment

                          • ryan74
                            Badcaps Veteran
                            • Oct 2012
                            • 471
                            • usa
                            #27
                            Re: magnavox 37mf337b/37 parts advice

                            Oops. I replaced the blown caps and powered on for 10 sec..
                            Front led flashed fast and continuous red.

                            I must have missed checking it first time through.
                            Thank you for the link.

                            Just curious- what usually happens when you run it.

                              Comment

                              • Welchs101
                                Badcaps Veteran
                                • Sep 2008
                                • 979
                                • USA
                                #28
                                Re: magnavox 37mf337b/37 parts advice

                                hi, i have a very similar power supply board from a TV model number
                                (47MF437B/37 Phillips / Magnavox). The board is very similar. I have the same exact diode that is failing....P4KE250A.

                                also looking for a replacement diode for this?

                                  Comment

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