PSP power switch specs?

myersn024 · Post by **myersn024** » Mon Feb 19, 2007 3:46 pm

I know this may not be the best place to ask, but does anyone have the specs for the power switch used in the Sony PSP? I've seen a couple of pictures, but it doesn't say if it is a dpdt or spdt or anything like that. I just bought a psp with a broken power switch and it is going to be getting a U.P. modchip along with a few other things and I don't mind making it into a franken-psp with an external power switch and stuff.

Anyway..(back to the issue at hand)...does anyone know?

Retromaster · Post by **Retromaster** » Mon Feb 19, 2007 3:48 pm

how many leads does the power switch have?

myersn024 · Post by **myersn024** » Mon Feb 19, 2007 4:05 pm

It has 4 leads and 2 or 3 positions for the switch depending on how you count them. There's a hold position where the switch is pushed all the way down. There's a normal position where the switch is in the middle position. And then there's the up position which is momentary and used to turn the psp on and off. I can't hot link the picture, but here's a link to a site that sells them

http://www.xboxrepairguide.com/powerres ... p-952.html

I'm guessing that one side (two of the leads) are used for the on/off functionality through the momentary function of the switch. The other two leads are used for the hold functionality. I won't need the hold function, so I could probably get away with just a momentary on switch soldered to the corresponding points on the power board. Does that sound about right?

Retromaster · Post by **Retromaster** » Mon Feb 19, 2007 4:15 pm

It might be DPDT or SPST. something like that...

vskid · Post by **vskid** » Mon Feb 19, 2007 4:26 pm

Retromaster wrote:It might be DPDT or SPST. something like that...

No, its gotta be something special, it has the hold and just sliding it up to turn it on.
Maybe you could mutate other switches to make it work, if you don't care how it looks. Or fix the broken one.

Oh, just saw that you don't care, maybe a SPDT would work, one side to hold, the other for power and leave it in the middle the rest of the time ,if possible. If not, 2 SPST, one for power and one for hold should work.

Harshboy · Post by **Harshboy** » Mon Feb 19, 2007 4:48 pm

Just buy a new one

Buy stuff from: Here!

myersn024 · Post by **myersn024** » Mon Feb 19, 2007 6:30 pm

I'll do some testing when the broken PSP gets here and see what kind of switch it is. I think I can get away with a momentary on push button switch, but I won't know until I get to put the multimeter to it. BEWARE THE COMING OF THE FRANKEN-PSP!!!

timmeh87 · Post by **timmeh87** » Mon Feb 19, 2007 7:56 pm

this might seem too simple, but maybe in hold the bottom pair is shorted, and for momentary-on, the top pair is momentarily shorted... making it a kind of disjointed spdt?

vskid · Post by **vskid** » Mon Feb 19, 2007 9:20 pm

timmeh87 wrote:this might seem too simple, but maybe in hold the bottom pair is shorted, and for momentary-on, the top pair is momentarily shorted... making it a kind of disjointed spdt?

Wouldn't it be possible to use 2 SPSTs to do that (like the way I described in my post)?

myersn024 · Post by **myersn024** » Tue Feb 20, 2007 8:10 am

timmeh87 wrote:this might seem too simple, but maybe in hold the bottom pair is shorted, and for momentary-on, the top pair is momentarily shorted... making it a kind of disjointed spdt?

That's what I was thinking. It appears that the on/off part of the switch is just jumping the top two poles while the hold side jumps the lower two poles. However, until I get my hands on the PSP that I bought and do some testing I can't know for sure.

vskid wrote:Wouldn't it be possible to use 2 SPSTs to do that (like the way I described in my post)?

If it works the way I think it does, then you could do that. But a better way would be to use a regular SPST for the hold function and a momentary on SPST for the on/off side instead of just two regular SPST switches.