Re: viewsonic vx2255wmb wont turn on

I was having troubles with converting my pictures but i think its good now. Where is the regulator located on the main board and what output voltage should I expect? From my minimal experience I believe a voltage regulator circuit involves transistors and I see three of the larger ones and two smaller ones. I believe the larger type attached to the heat sinks are more likely to be part of the regulator circuit. I hope the pictures help. thanks for your help....

Hello csabin
In reference to your Viewsonic VX2255WMB thread, I have uploaded the factory service manual for your monitor. Sometimes having the schematics makes a big difference.
[URL="http://hitachibiotech.com/jjones/viewsonic_vx2255wmb_service_manual.pdf"]Viewsonic VX2255WMB Service Manual[/URL]Hello csabin
In reference to your Viewsonic VX2255WMB thread, I have uploaded the factory service manual for your monitor. Sometimes having the schematics makes a big difference.
[URL="http://hitachibiotech.com/jjones/viewsonic_vx2255wmb_service_manual.pdf"]Viewsonic

Re: viewsonic vx2255wmb wont turn on

Thanks for your reply. I am an electrical engineering student, however, I'm not a professional. I did not see any labels for standby voltage on the main board but I did get 5-5.3V on the output to what I believe is the board that contains the VGA and DVI inputs. I haven't connected power to that board yet but I will probably test that board in a while. I replaced the caps (rookie mistake since I knew that the caps were good to begin with). I also made another rookie mistake by calling Viewsonic's tech support. I have attached the pictures you...

I am having problems figuring out what is wrong with my monitor. It will not turn on and the light does not come on. I checked caps and the fuse and they are all good. I checked the rectifier block and it converts to DC like it should. Is there any tests I can perform to figure out what is wrong?