Techwood TWP 4205. Board: LJ44-00049A

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  • speedypro
    Badcaps Veteran
    • Feb 2013
    • 561
    • United Kingdom
    #1

    Techwood TWP 4205. Board: LJ44-00049A

    Got this projection tv with no display. No Va, Vset and no 5V to YSUS board. Has anyone repaired this board before?

    No sign of damage on board. Board on internet seems expensive.
    Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Techwood TWP 4205. Board: LJ44-00049A

      Projection? You mean plasma?

      Pic of power board?
      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

        • speedypro
          Badcaps Veteran
          • Feb 2013
          • 561
          • United Kingdom
          #3
          Re: Techwood TWP 4205. Board: LJ44-00049A

          Originally posted by tom66
          Projection? You mean plasma?
          It is plasma but it's not a "TV" as in a full TV. cant explain it as I've never seen this before.

          Pic:

          Attached Files
          Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Techwood TWP 4205. Board: LJ44-00049A

              You have power light and standby?
              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

                • speedypro
                  Badcaps Veteran
                  • Feb 2013
                  • 561
                  • United Kingdom
                  #5
                  Re: Techwood TWP 4205. Board: LJ44-00049A

                  Originally posted by tom66
                  You have power light and standby?
                  Yes. It also turns green when connected to its source. This source is like a receiver.
                  Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Techwood TWP 4205. Board: LJ44-00049A

                      See any pson or vson pins on power board?
                      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

                        • speedypro
                          Badcaps Veteran
                          • Feb 2013
                          • 561
                          • United Kingdom
                          #7
                          Re: Techwood TWP 4205. Board: LJ44-00049A

                          No. None
                          Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

                            Comment

                            • vinceroger69
                              Badcaps Legend
                              • Mar 2012
                              • 6714
                              • uk
                              #8
                              Re: Techwood TWP 4205. Board: LJ44-00049A

                              good pic here showing the pinouts
                              http://www.shopjimmy.com/samsung-lj4...upply-unit.htm

                                Comment

                                • tom66
                                  EVs Rule
                                  • Apr 2011
                                  • 32560
                                  • UK
                                  #9
                                  Re: Techwood TWP 4205. Board: LJ44-00049A

                                  Connector next to "SL"... Does that go to main board or another part
                                  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

                                    • speedypro
                                      Badcaps Veteran
                                      • Feb 2013
                                      • 561
                                      • United Kingdom
                                      #10
                                      Re: Techwood TWP 4205. Board: LJ44-00049A

                                      See pic:

                                      Attached Files
                                      Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

                                        Comment

                                        • tom66
                                          EVs Rule
                                          • Apr 2011
                                          • 32560
                                          • UK
                                          #11
                                          Re: Techwood TWP 4205. Board: LJ44-00049A

                                          That's control board, then. Check the VS ON and PDP GO signals.
                                          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

                                            • speedypro
                                              Badcaps Veteran
                                              • Feb 2013
                                              • 561
                                              • United Kingdom
                                              #12
                                              Re: Techwood TWP 4205. Board: LJ44-00049A

                                              Originally posted by tom66
                                              That's control board, then. Check the VS ON and PDP GO signals.
                                              Should I get a voltage at VS ON? If so, no voltage. Those two fuses are ok. No voltage at any of those fuses.
                                              Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

                                                Comment

                                                • sachin
                                                  New Member
                                                  • May 2014
                                                  • 1
                                                  • india
                                                  #13
                                                  Re: Techwood TWP 4205. Board: LJ44-00049A

                                                  Originally posted by tom66
                                                  You have power light and standby?
                                                  board; LJ44-00049A

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