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jools1976
Joined: 24 Apr 2008 Posts: 1
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Posted: Thu Apr 24, 2008 4:45 pm Post subject: Viewsonic Monitor Blinking |
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I've got a Viewsonic VX924 19" LCD monitor that will turn on, however, the power LED on the front will flash and the screen will blink the image for a split second, then go blank. It continues to do this in a cycle, about evey 2-3 seconds. I have narrowed it down to the power supply board. Upon initial inspection I noticed 3 bulging electrolytic caps, which turned out to test faulty. I replaced them, but I've still got the same problem. I can't seem to get my hands on a set of schematics either. Does anyone know where I can get some schematics, or give me any insight on troubleshooting the board? Thanks. |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Mon Apr 28, 2008 11:33 pm Post subject: |
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Keep checking caps. There's usually more than just a couple. |
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Guest
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Posted: Wed Jun 25, 2008 3:15 am Post subject: |
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Yes - I have the same problem - The power supply is the likely culprit - If anyone has the schematic it would be greatly appreciated.
Thanks |
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torbjorn
Joined: 07 Jun 2007 Posts: 370 Location: Sweden
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Posted: Wed Jun 25, 2008 10:06 am Post subject: |
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Most LCD monitor power supplies are fairly standard designs, if you can't find a schematic for a particular power supply, then look at the application notes and reference designs from the manufacturer of the controller IC (usually, Fairchild, TI, Power Integrations etc). |
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SZASZ
Joined: 27 Apr 2007 Posts: 69 Location: TIMISOARA
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Posted: Tue Sep 02, 2008 6:51 am Post subject: |
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Hello,
Try to uncople the inverter. the inverter is powered using a 3.15 Fuse.
Maybe the Inverter has ocuured a fault.
See if the 12V is stabile. when you connect and siconeect the inverter. |
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De Wang LCD
Joined: 07 Dec 2008 Posts: 1
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Posted: Sun Dec 07, 2008 4:02 am Post subject: |
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This is a general power supply circuit board capacitor above, you should replace the out OK |
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Any Guest
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Posted: Sun Aug 23, 2009 2:32 am Post subject: Many |
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I am looking for a complete circuit diagram of VX 924 monitor and fuses locations? |
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