Viewsonic VX922 White screen

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Mathiews
    New Member
    • Jul 2011
    • 7
    #1

    Viewsonic VX922 White screen

    Hi! I'm a newbie in electronic. I cannot find the problem but i able to repair it! I have 4 VX922. my fourth monitor goes white when i turn it on. My power board is fsp035-1pi01. I don't know if the problem come from the power board or main board. I've made a short video clip on you tube showing you how my monitor works. http://www.youtube.com/watch?v=firzXDt4RbM

    On the picture attached, viewsonic say that must check Q6 but i can't find it.

    Sorry for my english i'm a french speaker, i hope you will able to understand me!

    Thanks a lot!

    Mathiews
    Attached Files
    Last edited by Mathiews; 07-14-2011, 08:30 PM.
    Tags: None
    • PlainBill
      Badcaps Legend
      • Feb 2009
      • 7034
      • USA
      #2
      Re: Viewsonic VX922 White screen

      Originally posted by Mathiews
      Hi! I'm a newbie in electronic. I cannot find the problem but i able to repair it! I have 4 VX922. my fourth monitor goes white when i turn it on. My power board is fsp035-1pi01. I don't know if the problem come from the power board or main board. I've made a short video clip on you tube showing you how my monitor works. http://www.youtube.com/watch?v=firzXDt4RbM

      Sorry for my english i'm a french speaker, i hope you will able to understand me!

      Thanks a lot!

      Mathiews
      This is a common problem on a newly repaired monitor. There are three possible causes.

      1. The ribbon cable running from the signal card to the LCD panel is not connected properly.

      2. On the back of the LCD panel itself is a board that usually runs the length of the panel. It may be under a plastic sheet, it may be under a metal cover. It is called the 'panel card' and contains the electronics to drive the individual pixels of the panel. Near the connector from the signal card you will find a fuse. It's tiny, a little larger than a grain of rice. That may be open.

      3. The panel card contains a power supply that provides voltages to drive the various elements. Sometimes one of the capacitors fails.

      Be very careful handling the panel card. It is permanently bonded to the flex strips. Any damage to them and the panel is destroyed.

      A picture of the panel card would be a great help if you want further assistance.

      PlainBill
      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

        Comment

        • Mathiews
          New Member
          • Jul 2011
          • 7
          #3
          Re: Viewsonic VX922 White screen

          Thank you for your fast reply. I take some pictures of my boards. My power board are 2 capacitors with a round top. I hope my pictures will help you!
          Attached Files
          Last edited by Mathiews; 07-15-2011, 06:24 AM.

            Comment

            • Mathiews
              New Member
              • Jul 2011
              • 7
              #4
              Re: Viewsonic VX922 White screen

              More pictures
              Attached Files
              Last edited by Mathiews; 07-15-2011, 06:27 AM.

                Comment

                • jsog
                  Badcaps Veteran
                  • Feb 2011
                  • 220
                  #5
                  Re: Viewsonic VX922 White screen

                  Two obviously bad caps on the power board. Replace all three visible in the photo, and there should be a smaller one somewhere else on the board which should be replaced also. Maybe that's it peeking out behind the transformer.

                  The two large green caps on the signal board look like they could be a little bulged.

                    Comment

                    • PlainBill
                      Badcaps Legend
                      • Feb 2009
                      • 7034
                      • USA
                      #6
                      Re: Viewsonic VX922 White screen

                      Originally posted by jsog
                      Two obviously bad caps on the power board. Replace all three visible in the photo, and there should be a smaller one somewhere else on the board which should be replaced also. Maybe that's it peeking out behind the transformer.

                      The two large green caps on the signal board look like they could be a little bulged.
                      I agree. Replace the two bulged caps on the signal board, and the electrolytics on the power supply (with the possible exception of the large (100uF, 450 volt) one).

                      PlainBill
                      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

                        Comment

                        • Mathiews
                          New Member
                          • Jul 2011
                          • 7
                          #7
                          Re: Viewsonic VX922 White screen

                          okay thanks for your help, i'll change these caps and i tell you the results!

                            Comment

                            • Mathiews
                              New Member
                              • Jul 2011
                              • 7
                              #8
                              Re: Viewsonic VX922 White screen

                              Hi everyone i've changed my caps. It seem to be okay! Yesterday my green light flashed in sleep mode but my other monitor light was orange. Anyway, the problem seem to be resolved!

                              Thank you again!

                                Comment

                                Previous template Next

                                Related Topics

                                Collapse
                                • harp
                                  White screen repairs
                                  by harp
                                  To ask here... I have few devices with white screen problem, actualy nokia 2220 and some fuji? camera, and try to understand what is common problem to cause that issue.
                                  Yes, both devices work everything else probably ok, I mean, I hear intro melody and keypress click sound, DTMF tone, power on off... all ok.
                                  On desk is nokia 2220 slide, and I check all screen connectors and components arround it, measure voltage drop, but all looks ok. I suspect on slide flex cable, but it look ok and white screen is not interupt while flexing board, pushing conectors, and sliding up down. In attachment...
                                  05-13-2024, 03:43 AM
                                • Ryan.man
                                  Macbook 2017 with touchbar (A1706) won't turn on after removing the screen
                                  by Ryan.man
                                  Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!

                                  My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.

                                  This time the original cable broke too close to the screen, it can't be fixed without tearing the screen...
                                  02-04-2025, 12:23 PM
                                • momaka
                                  HannStar Hanns-G HC194d LCD monitor repair
                                  by momaka
                                  Normally, I never post repairs this quick after I do them, because… I am usually very slow. But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
                                  03-15-2023, 10:17 PM
                                • abajor
                                  A2141 Screen replacement. Boots screen freezes on Apple Logo 1/3 status bar unless connected to second monitor.
                                  by abajor
                                  Having this very weird issue.
                                  The owner of this laptop complained about screen being intermittent when opening and closing, and has been using the laptop on a thunderbolt video connection since the screen failed.

                                  I swapped with a working screen from an A2141 waiting for parts.

                                  The Os exhibits this weird behavior where it boots to to 1/3 the status bar, then it makes the boop sound. It's at the log in but for whatever reason the desktop isn't loaded.

                                  The laptop boots fine into recovery mode. I updated from Monterey to Sonoma and the laptop still has...
                                  04-27-2024, 01:37 PM
                                • EazyBone
                                  Sharp LC-65Q620U White Screen
                                  by EazyBone
                                  Another TV topic!!
                                  I got this sharp TV that when I first plugged it in it showed the sharp logo and then went to the input screen. This was about 30 seconds and then it showed white screen. Now I can't see anything but white screen. This has a separate TCON and Main.

                                  The TCON is getting 12V and several parts are as well but the VGH line is only .5Volts which I thought is totally incorrect.

                                  Am I on the correct assumption that the TCON is bad somehow if I'm only getting that voltage or is there something else I should check?...
                                  08-21-2024, 12:56 PM
                                • Loading...
                                • No more items.
                                Working...