Main > Monitor/Video Forum
Arcade monitor isolation transformer.
abispac:
Hey so im trying to use an old 19 crt monitor i had laying around. It was working fine, but, stupid me, when i gutted the old cabinet , i discarded the isolation transformer thinking it wasnt any good. So long story short, when i was about to try my pc in the monitor, i pluged the monitor directly to the wall socket and it worked for like 3 minutes, so, i disconected it, plugged back in , and it didnt work. So i took the monitor with a friend of mine, and he said one of the horizontal oulets gave more power and ---fouled up beyond all recognition--- the monitor, plus all caps where dry. He fixed the monitor but i have not plugged it back in as i do not want to ---fouled up beyond all recognition--- it up again, so i guess my questions are, #1 its really not a way to hook this monitors directly? if not, how can i know what kind of isolator do i need? thanks in advance for any help.
abispac:
Anyone? please help...
Mike A:
https://www.arcadepartsandrepair.com/store/cabinet-parts/power-supplies/monitor-isolation-transformer-120v-output/
Gilrock:
Yes you need the isolation transformer. I've built 2 cabs from scratch so I build a little board with a terminal block and transformer. I followed the drawing at the bottom of this page and it works. Only thing I did different is I used one of the power jacks that had a built-in EMI filter.
http://arcadecontrols.com/BBBB/acwiring.html
bobbyb13:
--- Quote from: Gilrock on March 18, 2020, 10:47:25 am ---Yes you need the isolation transformer. I've built 2 cabs from scratch so I build a little board with a terminal block and transformer. I followed the drawing at the bottom of this page and it works. Only thing I did different is I used one of the power jacks that had a built-in EMI filter.
http://arcadecontrols.com/BBBB/acwiring.html
--- End quote ---
Had the same success as Gilrock with the real Bob Roberts method- although my line filter solution was slightly different also.
(To be extra safe) check on your monitor specifically just to be sure you need a 1:1 transformer like nearly all of them do.