Viewsonic VX2235wm-5 Main-Logic Board Voltage Regulator

[hairykiore]

Hi..The logic board on the Viewsonic VX2235wm-5 Monitor has a voltage regulator with ZCPk on its top...I need a data sheet for it ? Can anybody please enlighten me how one would go about this as I have typed in ZCPk in google and got nothing..Thanks

[Nocta]

Re: Viewsonic VX2235wm-5 Main-Logic Board Voltage Regulator

I found a service manual for your monitor but It didn't say the number of the voltage regulator.
Anyways, based on my experience with Viewsonic, I'd say it's an AIC1117-3.3. It's output are always 3.3v

Cheers.

[hairykiore]

Re: Viewsonic VX2235wm-5 Main-Logic Board Voltage Regulator

Hi..You found a service manual...?? I have been looking for months ..Would you mind giving me a link to it please..re the voltage regulator ....Yes I think its some obscure brand ..I just want to know for sure what is ground on it?? Hk

[Rtech]

Re: Viewsonic VX2235wm-5 Main-Logic Board Voltage Regulator

If its fixed value then checking resistance from a ground point eg the Vga/DVI fixing,will show a short cct.If it is a variable one then there will probably be no Ground, but again you can measure DC volts from the same Vga/DVI socket,and a voltage on each pin should then be measureable.

[Nocta]

Re: Viewsonic VX2235wm-5 Main-Logic Board Voltage Regulator

It's a VX2235wm-1 service manual but I don't think it's THAT different.
VR are pretty much the same. I found the same VR on 3 differents models of Viewsonic.

Check the output of the VR.

[jetadm123]

Re: Viewsonic VX2235wm-5 Main-Logic Board Voltage Regulator

Are you sure it's a voltage regulator? What is the labeling on the board itself? QXXX, UXXX, ICXXX? Photos of your logic board would be most helpful.

[budm]

Re: Viewsonic VX2235wm-5 Main-Logic Board Voltage Regulator

Did you see this post you had asked for service manual:
https://www.badcaps.net/forum/showthread.php?t=21576