Dynex LCD TV DX-32E150A11 Won't turn on

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  • Tekone
    Senior Member
    • Jan 2013
    • 79
    • united States
    #1

    Dynex LCD TV DX-32E150A11 Won't turn on

    Hi, my friend gave me his TV because he couldn't get it to turn on, when the power cord is plugged in the red standby light comes on but wont turn on.
    I took it apart to check for bad cap but didn't see any.
    Can someone please help out with this I have attach some pictures of the power and main board.




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    • CapLeaker
      Leaking Member
      • Dec 2014
      • 8223
      • Canada
      #2
      Re: Dynex LCD TV DX-32E150A11 Won't turn on

      turn on the tv and probe the PSon pin on the power supply.

        Comment

        • Tekone
          Senior Member
          • Jan 2013
          • 79
          • united States
          #3
          Re: Dynex LCD TV DX-32E150A11 Won't turn on

          how do I do that and whats the pson

            Comment

            • Tekone
              Senior Member
              • Jan 2013
              • 79
              • united States
              #4
              Re: Dynex LCD TV DX-32E150A11 Won't turn on

              The TV doesn't turn on.

                Comment

                • Tekone
                  Senior Member
                  • Jan 2013
                  • 79
                  • united States
                  #5
                  Re: Dynex LCD TV DX-32E150A11 Won't turn on

                  Okay with the power cord plugged in and the standby red light on from the PSon pin on the cn2 connector I'm not getting any voltage.

                    Comment

                    • CapLeaker
                      Leaking Member
                      • Dec 2014
                      • 8223
                      • Canada
                      #6
                      Re: Dynex LCD TV DX-32E150A11 Won't turn on

                      Got a bad main board. It's not turning the power supply on. You can test this by forcing the power supply on without the main board.
                      Unhook all the main board cables from the power supply. Take two 1k ohm resistors and jumper 5V STBY to PSon, take the other resistor and jumper BLon (LCDon) to 5V. Plug in the power supply and all the voltage rails on the power supply should be up and running.

                        Comment

                        • Tekone
                          Senior Member
                          • Jan 2013
                          • 79
                          • united States
                          #7
                          Re: Dynex LCD TV DX-32E150A11 Won't turn on

                          Thanks for your help. I don't have any resistors, is there another way to do the test?

                            Comment

                            • CapLeaker
                              Leaking Member
                              • Dec 2014
                              • 8223
                              • Canada
                              #8
                              Re: Dynex LCD TV DX-32E150A11 Won't turn on

                              I suppose you could, but also you run into a higher risk of damage. I don't condone it.

                                Comment

                                • nomoresonys
                                  Badcaps Legend
                                  • Jan 2013
                                  • 12206
                                  • U.S.
                                  #9
                                  Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                  try unplug the mainboard from power supply, turn on tv, see if backlights come on, I believe they will IF it has pull up resistors.
                                  Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                                    Comment

                                    • Tekone
                                      Senior Member
                                      • Jan 2013
                                      • 79
                                      • united States
                                      #10
                                      Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                      Can I use one the standby 5v to jump LCD on

                                        Comment

                                        • Tekone
                                          Senior Member
                                          • Jan 2013
                                          • 79
                                          • united States
                                          #11
                                          Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                          No did not turn on the backlight

                                            Comment

                                            • budm
                                              Badcaps Legend
                                              • Feb 2010
                                              • 40746
                                              • USA
                                              #12
                                              Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                              You need the resistors to force on the PS0N, BLON, the resistors are for limiting current in case you slip or hook up to the wrong location, also in case the receiving pins do not have built-in current limiting resistors.
                                              The resistor can be from 1K~500 Ohm.
                                              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

                                                • Tekone
                                                  Senior Member
                                                  • Jan 2013
                                                  • 79
                                                  • united States
                                                  #13
                                                  Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                                  Okay so I disconnect the main board and ps on to sb, lcdon to 5v on got the backlight to come on

                                                    Comment

                                                    • Tekone
                                                      Senior Member
                                                      • Jan 2013
                                                      • 79
                                                      • united States
                                                      #14
                                                      Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                                      I disconnect main board jump ps on to stand by 5v and jump lcd on to 5v got the backlight to come on.

                                                      What's next to try?

                                                        Comment

                                                        • budm
                                                          Badcaps Legend
                                                          • Feb 2010
                                                          • 40746
                                                          • USA
                                                          #15
                                                          Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                                          So you will need main board since you are able to force on the backlights.
                                                          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

                                                            • Tekone
                                                              Senior Member
                                                              • Jan 2013
                                                              • 79
                                                              • united States
                                                              #16
                                                              Re: Dynex LCD TV DX-32E150A11 Won't turn on

                                                              Okay thanks very much for your help

                                                                Comment

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