Sony KDL 40W4500 - Blinks Twice

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  • st33n
    Member
    • Sep 2012
    • 22
    • NL

    #1

    Sony KDL 40W4500 - Blinks Twice

    Hi,

    I obtained a Sony KDL 40W4500 which blinks twice when turned on.
    So no screen, menu etc.

    Attached the pictures. Any idea what could be it? Caps seem ok to me..
    Attached Files
  • gilly1984
    Badcaps Veteran
    • Jun 2012
    • 751
    • UK

    #2
    Re: Sony KDL 40W4500 - Blinks Twice

    Originally posted by st33n
    Hi,

    I obtained a Sony KDL 40W4500 which blinks twice when turned on.
    So no screen, menu etc.

    Attached the pictures. Any idea what could be it? Caps seem ok to me..
    Ive read its a short in the psu.
    Do NOT touch heatsinks when testing for voltages as they may be LIVE!

    Comment

    • vinceroger69
      Badcaps Legend
      • Mar 2012
      • 6714
      • uk

      #3
      Re: Sony KDL 40W4500 - Blinks Twice

      http://www.scribd.com/doc/44214062/S...Service-Manual

      Comment

      • st33n
        Member
        • Sep 2012
        • 22
        • NL

        #4
        Re: Sony KDL 40W4500 - Blinks Twice

        It says:
        02DC_DET (12V main voltage).VERDIn normal mode.Goes into standby and LED flashes.
        So it should be something with the PS. Any tips on how to troubleshoot? Or should I replace the whole PS?
        Last edited by st33n; 10-03-2012, 01:03 PM.

        Comment

        • vinceroger69
          Badcaps Legend
          • Mar 2012
          • 6714
          • uk

          #5
          Re: Sony KDL 40W4500 - Blinks Twice

          have you got a multi meter you can check the voltages on the connectors usually there marked with what they should be. its hard to see in your pics maybe some good pics of the connectors and writing by them could help us.

          Comment

          • st33n
            Member
            • Sep 2012
            • 22
            • NL

            #6
            Re: Sony KDL 40W4500 - Blinks Twice

            I measured the plug in the image. It says 12v but gives 0v (If i measured right..)
            Attached Files

            Comment

            • vinceroger69
              Badcaps Legend
              • Mar 2012
              • 6714
              • uk

              #7
              Re: Sony KDL 40W4500 - Blinks Twice

              are the rest of the voltages ok ie 5 volt ones
              Last edited by vinceroger69; 10-04-2012, 11:12 AM.

              Comment

              • Sonylistens
                New Member
                • Apr 2011
                • 6

                #8
                Re: Sony KDL 40W4500 - Blinks Twice

                Hello st33n, this model (KDL40W4500) is listed as a European model. Please visit the Sony Global Web site (http://www.sony.net/SonyInfo/Support/) for information about obtaining support in your country.
                Thanks, Scott Fuentes
                SonySupportUSA

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #9
                  Re: Sony KDL 40W4500 - Blinks Twice

                  Service manuals:
                  http://elektrotanya.com/?q=showresul...oria=&kat2=all
                  Do you know which chassis number you have?
                  the chassis eg1l does not match your TV.
                  Last edited by budm; 10-04-2012, 03:43 PM.
                  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

                  • sienoki
                    sienoki
                    • Jan 2012
                    • 314

                    #10
                    Re: Sony KDL 40W4500 - Blinks Twice

                    Originally posted by budm
                    Service manuals:
                    http://elektrotanya.com/?q=showresul...oria=&kat2=all
                    Do you know which chassis number you have?
                    the chassis eg1l does not match your TV.
                    Me & tom got hold of 1 of these yesterday with tab bond issue..stripped it down 2 repair but working on a kitchen floor is a bit crap..some how we cracked off a tiny corner of the screen & now its fookedall the boards r fine inside so probably gonna ebay it..if you need any parts for yours PM myself or Tom as we need 2 get sumat bk from this set..thx

                    Comment

                    • st33n
                      Member
                      • Sep 2012
                      • 22
                      • NL

                      #11
                      Re: Sony KDL 40W4500 - Blinks Twice

                      Thanks for all the replies. I will check on monday the chassis number.

                      This cannot be the issue that the sides are not getring enough pressure right?

                      Comment

                      • vinceroger69
                        Badcaps Legend
                        • Mar 2012
                        • 6714
                        • uk

                        #12
                        Re: Sony KDL 40W4500 - Blinks Twice

                        off another site
                        What you could also try is to see if it will go into the 'self-diagnosis' screen; In standby mode, press the following sequence of buttons in quick succession on the remote control:
                        i+ button (on screen display) > 5 (digit 5) > - (volume down) > I/O (tv power/standby)

                        This should bring up the 'errors screen' where you can scroll through the log.

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #13
                          Re: Sony KDL 40W4500 - Blinks Twice

                          Originally posted by st33n
                          Thanks for all the replies. I will check on monday the chassis number.

                          This cannot be the issue that the sides are not getring enough pressure right?
                          No on our TV we had a perfect pic if the TV was given a whack on the side, otherwise the pic would be there but blurry or jumping up and down. Sadly the panel got a tiny chip in the edge while we were putting it back together. Didn't crack the LCD, but some tiny lines on the glass surface got severed... basically writing off the screen...
                          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

                          • st33n
                            Member
                            • Sep 2012
                            • 22
                            • NL

                            #14
                            Re: Sony KDL 40W4500 - Blinks Twice

                            Thanks Tom and Vincent. I have sent sienoki a message about your power supply. I think that should solve the problem.

                            Comment

                            • st33n
                              Member
                              • Sep 2012
                              • 22
                              • NL

                              #15
                              Re: Sony KDL 40W4500 - Blinks Twice

                              Any other tips on how to fix the PS? I can get a new one for about 30 pounds shipped. I'll do that if there is no other fix.

                              Cheers

                              Comment

                              • st33n
                                Member
                                • Sep 2012
                                • 22
                                • NL

                                #16
                                Re: Sony KDL 40W4500 - Blinks Twice

                                Any other tips. A new PS did not solve the issue.

                                Thanks

                                Comment

                                • tom66
                                  EVs Rule
                                  • Apr 2011
                                  • 32560
                                  • UK

                                  #17
                                  Re: Sony KDL 40W4500 - Blinks Twice

                                  New main board then I would guess, unlikely to be t-con. You can contact sienoki as he has all boards for this TV.
                                  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

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