Question about ViewSonic VP211b 21.3" LCD Monitor
I have a Viewsonic VP211b that will not power on. No lights, nothing. It has an internal power supply that had a noticeable bad capacitor. I replaced it, but still nothing. When I connect a small 12v blub to the powers supply output as a test, the bulb pulses bright to dim, etc. Is there another bad capacitor or FET?
I have fixed several of these.
The most common fail on the Viewsonic VP211b is a blown fuse on the inverter board. Check fuses F1 and F2. These are Fast Blow 2.0 Amp surface mounted fuses, case style 1208. Available at Newark Electronics, part number 64R8010. They are located on either side of connector CN1.
Posted on Mar 05, 2015
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Posted on Jan 02, 2017
davsmith00, Did you look on rear of VA712B where the power plug enters the power JACK connector? Maybe it will only tell you who is positive and who is negative (gnd) some monitors state what is the required V & I for them on the rear labels somewhere. This will teach you not to lose your supply. Did the dog hide it under the bed? Good luck finding a replacement. There are sources on web that specialize in drop-in replacement IN-LINE switch-mode-power-supply Bricks. You can also try newark.com and mouser.com and digikey.com to see if they have something. I'm louie12fix on fixya or lmistyrel@ aim.com Bye for now.
Posted on May 06, 2009
probably your power supply. Is it a cord direct from plug in for is there a box between where you plug it in and then a small round end that goes into the monitor. This would be the good news. If it plugs in direct then that means the power sopply is in the monitor itself which means more expensive to fix
Posted on Aug 05, 2009
SOURCE: DCAC40A4 power converter failure
This is too funny. I have a Norwood lcd monitor with the same problem. It has the same exact board. I started to troble shoot and it is pretty tough without schmatics but there is a diode (d301) that I am getting a dead short across.
Posted on Mar 13, 2010
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