 Posted: Mon Mar 24, 2014 10:05 pm Post subject: Inv Bd |
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Ah ok i see, well the wife says in the recycling Bin ! we tried. maybe i ll keep the new Power supply 3F02. and the main board .LOL someone may need it one day. |
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| Posted: Mon Mar 24, 2014 9:17 pm Post subject: |
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| Inverter board has 24V - Inverter board has 'enable' voltage = Can STILL be a bad Inverter board. | |
| Posted: Mon Mar 24, 2014 5:53 pm Post subject: inverter test |
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| the proper pin/harness going into the inverter board is holding 24.00V where it should be or where they are indicated on the board..
thats leaves the Tcon board or backlight , i think. |
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| Posted: Sun Mar 23, 2014 7:52 pm Post subject: VS test |
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| well, adding the flashlight to the front of the screen actually let us see the menue, but since we could not find HDMI input , we could not get the PS3 working to see if we had sound or picture. all there was for choices was AIR, TV, cable.. NO VGA or HDMI in the menue.
So what next??? seems like it might be the Back light !!! |
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| Posted: Mon Mar 17, 2014 5:58 pm Post subject: Re: VS, N3235W blank screen |
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Ok , will run those tests and get back to you. Where would you like me to put the Vmeter on the INV. board ( Pin# or other point?). so im not guessing! |
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| Posted: Mon Mar 17, 2014 4:02 pm Post subject: VS, N3235W blank screen |
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| Just to verify that video is present, shine a flashlight or bright light onto the screen while the TV is running with a known good source. you'll likely get sound with no picture. When shining the light, you should see the proper image on the screen.
Now that you've verified that the problem is only with your backlight, you can begin tracking down the problem. Check to see if you get 24v at the back light inverter board. If 24v is present, then you likely have a problem with the inverter board or the backlight lamps. |
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| Posted: Sun Mar 16, 2014 7:22 pm Post subject: Re: VS, N3235W blank screen |
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BTW: I checked the voltage and got 5.09v 11.79v and 24.01v on the main harness. |
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| Posted: Sun Mar 16, 2014 7:06 pm Post subject: VS, N3235W blank screen |
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| i read just about all i can read on this forum regarding the FSP212-3F01/3F02
Viewsonic 32 inch, i overlooked the entire power supply, visually,no sign of any thing burned brown hot, leaking CPS are alll good,and BTW its already a newer FSP212-3F02 !!! was expecting the older 3F01..erggg so here is what i get... Power of =amber light.. Power on=blue light. thats it..blank screen ..no backlight. and dont know how to put in diagnostic mode. ( hold power /menue/ something) help !!! Mitch |
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