LCD TV won't turn on. LED keeps blinking

Collapse
X
Collapse
 
  • Page of 5
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 4 5 template Next
  • sahan14
    Senior Member
    • Oct 2016
    • 52
    • sri lanka
    #21
    Re: LCD TV won't turn on. LED keeps blinking

    underside
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

      Comment

      • vinceroger69
        Badcaps Legend
        • Mar 2012
        • 6714
        • uk
        #22
        Re: LCD TV won't turn on. LED keeps blinking

        Also as mentioned some clear pictures of the white connectors on the top side of the board so we can see/read the writing by them

          Comment

          • sahan14
            Senior Member
            • Oct 2016
            • 52
            • sri lanka
            #23
            Re: LCD TV won't turn on. LED keeps blinking

            underside ...
            Attached Files

            if you find these attachements useful please consider making a small donation to the site

              Comment

              • sahan14
                Senior Member
                • Oct 2016
                • 52
                • sri lanka
                #24
                Re: LCD TV won't turn on. LED keeps blinking

                is this clear enough?

                  Comment

                  • dick_barton
                    Badcaps Legend
                    • Aug 2015
                    • 6643
                    • Wales
                    #25
                    Re: LCD TV won't turn on. LED keeps blinking

                    What are the part numbers on the top of the IC's
                    Attached Files

                    if you find these attachements useful please consider making a small donation to the site

                    Willing to help but I'm no expert.

                      Comment

                      • sahan14
                        Senior Member
                        • Oct 2016
                        • 52
                        • sri lanka
                        #26
                        Re: LCD TV won't turn on. LED keeps blinking

                        big one B249733
                        Attached Files

                        if you find these attachements useful please consider making a small donation to the site

                        Last edited by sahan14; 10-12-2016, 04:23 PM.

                          Comment

                          • sahan14
                            Senior Member
                            • Oct 2016
                            • 52
                            • sri lanka
                            #27
                            Re: LCD TV won't turn on. LED keeps blinking

                            new pictures
                            Attached Files

                            if you find these attachements useful please consider making a small donation to the site

                              Comment

                              • sahan14
                                Senior Member
                                • Oct 2016
                                • 52
                                • sri lanka
                                #28
                                Re: LCD TV won't turn on. LED keeps blinking

                                pictures
                                Attached Files

                                if you find these attachements useful please consider making a small donation to the site

                                  Comment

                                  • vinceroger69
                                    Badcaps Legend
                                    • Mar 2012
                                    • 6714
                                    • uk
                                    #29
                                    Re: LCD TV won't turn on. LED keeps blinking

                                    let us know when you have your new fuse also it maybe worth you building a dim bulb tester to test your psu for shorts as it saves blowing new fuses and more parts i have attached a picture of basic one that easy to build with parts you may have already
                                    Attached Files

                                    if you find these attachements useful please consider making a small donation to the site

                                      Comment

                                      • sahan14
                                        Senior Member
                                        • Oct 2016
                                        • 52
                                        • sri lanka
                                        #30
                                        Re: LCD TV won't turn on. LED keeps blinking

                                        do i have to build this tester?

                                          Comment

                                          • vinceroger69
                                            Badcaps Legend
                                            • Mar 2012
                                            • 6714
                                            • uk
                                            #31
                                            Re: LCD TV won't turn on. LED keeps blinking

                                            its up to you if you fit a new fuse and you still have a short theres a chance you will blow the new fuse plus extra parts using this tester if you have a short when you plug the tv in the bulb lights bright so indicates a short if bulb goes dim its usually ok too power up etc so up too you if you build one a lot of us on this site probably use one a lot too save newly fitted parts.

                                              Comment

                                              • sahan14
                                                Senior Member
                                                • Oct 2016
                                                • 52
                                                • sri lanka
                                                #32
                                                Re: LCD TV won't turn on. LED keeps blinking

                                                ok i will build it

                                                  Comment

                                                  • sahan14
                                                    Senior Member
                                                    • Oct 2016
                                                    • 52
                                                    • sri lanka
                                                    #33
                                                    Re: LCD TV won't turn on. LED keeps blinking

                                                    with the bulb tester i turn on the tv.
                                                    once bulb lights and within in a second it turns off
                                                    after discharging the 450v cap it lights up for another second,
                                                    board is not in the tv

                                                      Comment

                                                      • sahan14
                                                        Senior Member
                                                        • Oct 2016
                                                        • 52
                                                        • sri lanka
                                                        #34
                                                        Re: LCD TV won't turn on. LED keeps blinking

                                                        After i replacing the fuse what should i do?

                                                          Comment

                                                          • vinceroger69
                                                            Badcaps Legend
                                                            • Mar 2012
                                                            • 6714
                                                            • uk
                                                            #35
                                                            Re: LCD TV won't turn on. LED keeps blinking

                                                            what watt bulb are you using? i use a 60 watt i think without looking.

                                                              Comment

                                                              • sahan14
                                                                Senior Member
                                                                • Oct 2016
                                                                • 52
                                                                • sri lanka
                                                                #36
                                                                Re: LCD TV won't turn on. LED keeps blinking

                                                                15watt

                                                                  Comment

                                                                  • sahan14
                                                                    Senior Member
                                                                    • Oct 2016
                                                                    • 52
                                                                    • sri lanka
                                                                    #37
                                                                    Re: LCD TV won't turn on. LED keeps blinking

                                                                    how should i test the psu is ok or not?

                                                                      Comment

                                                                      • vinceroger69
                                                                        Badcaps Legend
                                                                        • Mar 2012
                                                                        • 6714
                                                                        • uk
                                                                        #38
                                                                        Re: LCD TV won't turn on. LED keeps blinking

                                                                        im not sure if using a low watt bulb will matter have you got a 60w or a 100w bulb you can use?

                                                                          Comment

                                                                          • sahan14
                                                                            Senior Member
                                                                            • Oct 2016
                                                                            • 52
                                                                            • sri lanka
                                                                            #39
                                                                            Re: LCD TV won't turn on. LED keeps blinking

                                                                            Now im sure there is no short on the board.. the bulb is ok

                                                                              Comment

                                                                              • vinceroger69
                                                                                Badcaps Legend
                                                                                • Mar 2012
                                                                                • 6714
                                                                                • uk
                                                                                #40
                                                                                Re: LCD TV won't turn on. LED keeps blinking

                                                                                so you have fitted the new correct fuse to the psu then used the dim bulb tester and buld flashed and went off? if thats the case we can start testing voltages again we need to see why the boosted voltage is not there i have found a data sheet for the larger ic but cant seem to find one for the 230d6 ic
                                                                                Attached Files

                                                                                if you find these attachements useful please consider making a small donation to the site

                                                                                Last edited by vinceroger69; 10-13-2016, 07:26 AM.

                                                                                  Comment

                                                                                  Previous 1 2 3 4 5 template Next

                                                                                  Related Topics

                                                                                  Collapse
                                                                                  • mar1in
                                                                                    LG UH652T doesn't turn on and stands is blinking once a second
                                                                                    by mar1in
                                                                                    Hi everyone,

                                                                                    I've got this LG TV here that wouldn't turn on and be stuck in a standby loop (blinking red once every other second).
                                                                                    Did test the following:

                                                                                    * LED's seem fine as they all light up using LED Tester
                                                                                    * Power Supply supplied around 111V for each LED Strips (2x edge lid strips)
                                                                                    * PWR_ON would be at around 3V but dropping every other second (just like the standby light)
                                                                                    * DRV_ON is doing the same
                                                                                    * power supply has a green LED onboard, but that doesn't seem to do anything (stays off the whole time).
                                                                                    * there is a tiny clicking...
                                                                                    11-10-2024, 06:23 PM
                                                                                  • jxrepman
                                                                                    Asus X453MA won't turn on and green led light blinking
                                                                                    by jxrepman
                                                                                    Hi there,

                                                                                    I have this ASUS X453MA Laptop that's not turning on. When I plug in the charger, the green light just keeps on blinking and pressing the power button does nothing.

                                                                                    I have checked the charger and it is giving 19+ V

                                                                                    I have disconnected the battery and pressed power button for 30 seconds.

                                                                                    I tried another RAM stick.

                                                                                    Tried disconnecting the keyboard and touchpad.

                                                                                    Tried disconnecting the HDD and the wifi adapter.

                                                                                    The problem persists.

                                                                                    Hope you could help me out on this one. Thank you.
                                                                                    12-14-2024, 06:40 AM
                                                                                  • pajdek
                                                                                    Lenovo Y700-17ISK turn on and off
                                                                                    by pajdek
                                                                                    Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited...
                                                                                    09-20-2023, 02:49 AM
                                                                                  • my dodge
                                                                                    HP ZBook 17 G3 Mobile Workstation LA-C391p won't turn on and the power light is blinking
                                                                                    by my dodge
                                                                                    Hello
                                                                                    I was looking for a schematic or board view but unfortunately I didn't find anything.
                                                                                    By connecting the drain and source of pq58, the device turns on and works perfectly, but the battery doesn't charge, and I don't know the path of the circuit to the MOSFET.
                                                                                    Is the problem with the adapter? Or is there a problem with the MOSFET activation circuit?
                                                                                    Please guide me.
                                                                                    Thank you.​
                                                                                    12-12-2024, 08:37 AM
                                                                                  • RdeveLabs
                                                                                    MSI GF63 THIN 11UCX (MS-16R6) LAPTOP WON'T TURN ON AFTER RESTARTING
                                                                                    by RdeveLabs
                                                                                    To all the members here...

                                                                                    Let me tell you a little bit about what happened to my laptop (MSI GF63 THIN 11UCX model: MS-16R6) that “maybe” you know how to solve this problem.

                                                                                    So before this problem happened, my laptop was running smoothly. When I wanted to restart my laptop, it looked fine at first. But after I waited for this restart process to take a long time, until finally I panicked (because the restart process did not finish plus the laptop screen only showed a black screen), I immediately pressed and held the power button to force the laptop to turn off. But...
                                                                                    05-05-2025, 04:59 AM
                                                                                  • Loading...
                                                                                  • No more items.
                                                                                  Working...