Does Sanyo 29" VGA monitor need an isolation transforme

OldFoo · Post by **OldFoo** » Wed Jun 16, 2010 1:17 am

Just wondering if I can plug this into AC wall voltage and a PC, and not cause damage to it. Anyone know for sure?

Thanks,

Arcadenut

OldFoo · Post by **OldFoo** » Fri Jun 18, 2010 8:13 am

i would require more info of the chassis,if its a 230vac monitor then it will not require a iso transformer

OldFoo · Post by **OldFoo** » Fri Jun 18, 2010 2:35 pm

There seems to be some confusion on terminology here. An isolation transformer does not convert anything and is meant to prevent EMF from being received or transmitted through power lines. Also, should there be an electrical short or other malfunction, the system will turn off rather than immediately becoming a fireball. A step-up or step-down transformer converts or adapts power to the necessary voltage required (ex. 110v-220v).

Older CRT's made alot of electrical noise. In an arcade setting, where a group of these are close together, the interference would become noticeable in both audio and video as noise. This was controlled by using isolation transformers and 'contained' direct line EMF.

OldFoo · Post by **OldFoo** » Fri Jun 18, 2010 3:20 pm

This is a 110V unit. My reason for asking is because I've been told for years that some models (generally, older models) of monitors require an isolation transformer or the monitor itself will be damaged.

Since this one is from 2003 and in my experience monitors this new don't usually need one (I've only seen older monitors with the big warning sticker), I'm thinking it's not necessary. However, there is a transformer in the bottom of the cabinet I took this monitor from (an Initial D twin) and I don't know what it was used for... Wanted to grab it if I needed it, before throwing out the rest of the cabinet.

I'd also like to just plug AC into the power input if possible and a computer VGA cable to the connector on the monitor, and get some test images for selling purposes.

Thanks,

Wade