Sony Bravia KDL-37v5810 Power Fault

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • Easky15
    Badcaps Veteran
    • Sep 2013
    • 285
    • Ireland
    #21
    Re: Sony Bravia KDL-37v5810 Power Fault

    I have a KDL40-W5810 in my room, could i use any boards from it to test in the 37 just to try find the fault or could this risk causing more damage??

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA
        #22
        Re: Sony Bravia KDL-37v5810 Power Fault

        Do you also get 12vdc at the T-CON fuse? What happen if the T-CON board is not connected?
        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

          • Easky15
            Badcaps Veteran
            • Sep 2013
            • 285
            • Ireland
            #23
            Re: Sony Bravia KDL-37v5810 Power Fault

            no voltage at t-con fuse F1, When T-con is unplugged it is the same symptoms as when it's plugged in, Green light with no backlight..

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA
                #24
                Re: Sony Bravia KDL-37v5810 Power Fault

                That means this now main board is also not sending the command on signal to the switched MOSFET on the main board that is used to supply the power to the T-CON either, sounds to me like your new board is not good either.
                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

                  • Easky15
                    Badcaps Veteran
                    • Sep 2013
                    • 285
                    • Ireland
                    #25
                    Re: Sony Bravia KDL-37v5810 Power Fault

                    Would it be safe to try the main board from a working kdl-40w5810 in this faulty kdl-37v5810 or is that a silly idea...?

                      Comment

                      • mr. shr
                        Member
                        • Aug 2015
                        • 24
                        • United Kingdom
                        #26
                        Re: Sony Bravia KDL-37v5810 Power Fault

                        Hi All,
                        I have the exact same fault with the exact same model (blank screen, green LED flashes on remote commands).

                        Easky15 did you get any further with yours?

                        I'm going to go through the trouble shooting guides on here and then try to perform the tests that budm suggests.

                          Comment

                          Previous 1 2 template Next

                          Related Topics

                          Collapse
                          • PopsCaps
                            Sony Bravia KDL-40V2500 that will not power on
                            by PopsCaps
                            I have a Sony Bravia KDL-40V2500 that will not power on. The indicator flashes red 3 times.
                            I do not hear any sound and I cannot see any backlight.
                            I have tried disconnecting every cable on each board one at a time to see if anything changes.
                            The only change is when I disconnect AC-DET cable on the Power Supply board or on the other end if I unplug the CN7009 connection on the B-Board and try to power on the TV the indicator will stay on solid green until I power off.
                            My friend ordered another used power supply board but it is also doing the red indicator flash 3 times...
                            03-25-2025, 11:23 AM
                          • PantherDave
                            Microsoft Surface Pro (5th gen) model 1796 - no power
                            by PantherDave
                            Hi all!

                            I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅

                            I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
                            https://www.badcaps.net/forum/troubl...-hardware-devi...
                            05-29-2024, 02:01 PM
                          • GLISIT
                            Asus Probook P5440UF-XB74 power issue
                            by GLISIT
                            Hi all,

                            TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!


                            I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!

                            A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about...
                            01-16-2025, 02:29 PM
                          • repair-it
                            SONY Bravia OLED XR-77A80J will not power on
                            by repair-it
                            SONY XR-77A80J shuts off as soon as it is powered on. It goes into standby ok when plugged in but when power button is pressed, relay clicks and tv powers off. Power supply board makes a sound that sounds like momentary coil whine when it clicks off. The main board appears to turn on and has working optical.

                            I pulled the power supply board for visual inspection & there wasn't anything obvious. I am not sure how to go about testing this OLED as it is a bit different than the last one (LG) I tried to repair. The only voltage listed on the PSU is 12v for T-CON. The 12v is not present...
                            01-24-2024, 10:15 PM
                          • SkishyIshy
                            Sony Bravia XBR-65x900f: No Power, No Standby-light - however 3.3v STBY is present
                            by SkishyIshy
                            Hey All,

                            I have a Sony 65x900f that I purchased cheap because of a no-power issue.
                            I assumed that because there is no standby light visible, it would be an easy fix - however upon opening up of the unit I can confirm that the 3v3 standby voltage is making it's way from the power supply to the main board. I'm a little confused as to why there is no standby light.

                            I am firstly wondering if anyone has this model of TV, or has worked on one and can give me some insight. I have tried to find a service manual for this model, to no avail - and would really appreciate...
                            03-17-2021, 11:44 AM
                          • Loading...
                          • No more items.
                          Working...