Viewsonic power supply model #EADP-64BF B Need circuit diagram…

[Fagauthier]

I have à defective Viewsonic monitor. I can't find a circuit diagram for it' power supply.
Model #EADP-64BF B
The user manual have all diagram except for the power supply. I would appreciate help to find the circuit diagram, thanks

[R_J]

Re: Need circuit diagram…

There is at least one bad capacitor near CN1

[Fagauthier]

Re: Need circuit diagram…

You're wright! It looks bulged, I will test and order a new one !
Still would like to get the circuit diagram for thé PS.
Thanks !

[Aliencomputres]

Re: Viewsonic power supply model #EADP-64BF B Need circuit diagram…

change all caps in secondary !

[Fagauthier]

Re: Viewsonic power supply model #EADP-64BF B Need circuit diagram…

ALL caps ?…..my Real need for proper troubleshooting is the schematic diagram for the PC

[Per Hansson]

Re: Viewsonic power supply model #EADP-64BF B Need circuit diagram…

ALL caps ?

I think it's enough to change the crappy ones
Might be that the two small ones near the large bulk capacitor are bad too.
Certainly the green one on the secondary looks a bit off too.
To find a schematic check what PWM controller it uses and Google its datasheet, there is usually a good implementation example included.

[Fagauthier]

Re: Viewsonic power supply model #EADP-64BF B Need circuit diagram…

Thanks to all !…I found and replaced 5 bad Caps on power supply and main board !
You’ve put me and the wright trak!