prolem with the psone screens

dfukuba · Post by **dfukuba** » Wed Nov 19, 2008 6:27 pm

Hey guys,

so i had my n64 system working, then the screen stopped working after rerouting some of the stuff that was going on.

i checked the pins...9volts is getting into the screen from the battery (and it will run off of 9...like i said it worked before)

so the voltage is going in, but no video is coming out (not ever the buttons that work when there is no feed)

any quick fixes? and if not is there anyone who can over night a screen to me :"P

Mario · Post by **Mario** » Wed Nov 19, 2008 6:36 pm

Did you try jumping the fuse?

9v is a little bit high for a PSone screen.

dfukuba · Post by **dfukuba** » Wed Nov 19, 2008 6:41 pm

wheres the fuse?

Neildo_64 · Post by **Neildo_64** » Wed Nov 19, 2008 7:22 pm

Does the backlight come on at all, or is there absolutely no response from the screen? A humming noise?

dfukuba · Post by **dfukuba** » Wed Nov 19, 2008 7:26 pm

no noise from the speakers, and no backlight

SonyPortableizer · Post by **SonyPortableizer** » Wed Nov 19, 2008 7:36 pm

I have the same problem

dfukuba · Post by **dfukuba** » Wed Nov 19, 2008 7:48 pm

i found this....think i may have just blew the fuse somehow
http://www.extremetech.com/article2/0,2 ... 358,00.asp

bacteria · Post by **bacteria** » Wed Nov 19, 2008 9:55 pm

dfukuba wrote:i found this....think i may have just blew the fuse somehow
http://www.extremetech.com/article2/0,2 ... 358,00.asp

9v is enough to blow the screen mobo.

I tried bypassing the fuse on a board I bought cheaply that didn't work - result when screen turned on was crackling and smoke as another component fried on it (back of board); so bypassing the fuse isn't always reliable!

evilteddy · Post by **evilteddy** » Wed Nov 19, 2008 11:31 pm

Jumping the fuse worked for me though. Make sure that the voltage is working properly before jumping the fuse though. 9V should work after the fuse is jumped I think. Don't hold me to it. It is probably a better idea to regulate the voltage to about 8.4V.

bacteria · Post by **bacteria** » Thu Nov 20, 2008 2:07 am

Indeed, the working voltages of the PSone screen seem to be 6.9v - 8.5v or thereabouts; it is well documented here. more than that and you will probably blow the fuse or fry the board; eg 9v...

Remember also, that Li-ions show a higher voltage when not under load, however can hold that voltage when running a PSone screen and console; 7.4v or 7.2v Li-ions I have seem to run at about 8.3v - 8.4v at full charge; that means that using a PSone screen you really only want to get 7.2v or 7.4v Li-ions to run your system as higher could fry the screen board.