I recently had a problem with my Playstation. When I turn it on, everything works fine except for the controllers. I realize this is do to SMF #15 (Surface Mount Fuse 15) blowing. This fuse runs (ran) at .6 to .7 amps. I found a site that says I can replace this fuse with a resistor of the same value for better results, but I don't know what value resistor I would need.

Can anyone help me out here? Any help is greatly appreciated.

You need to know the supply voltage, and the desired output voltage, to determine the resistors value in ohms...

I found th following equation on an electronics site: Ohms= Watts/Amps*Amps (amps squared). When I put in .25 for watts (for a 1/4 watt resistor) and .4225 for Amperage (average desired amperage (.65) squared), I get about .6 ohms of resistance is what I would need. But this doesn't make any sense to me, especially since the only way I know of to get .6 ohms of resistance is to parallel circuit 15*10 ohm resistors (the smallest I've seen). That to me seems very wrong and highly impracticle.

Has anyone ever successfully replaced Surface Mount Fuse #15 on the Playstation motherboard with a resistor? If so, what value did you use?

if it's a fuse, just get another from radioshack. it doesn't have to match perfectly. just get one that's close to the orig.

QUOTE (MorfiusX @ Jan 3 2003, 01:51 AM)

if it's a fuse, just get another from radioshack. it doesn't have to match perfectly. just get one that's close to the orig.

Do you think that a .750 amp automotive (or other type) fuse would do the job of the .6 to .7 amp SMF for the Playstation? I really don't know much about fuses, but it seems close enough.

If worse comes to worse, I suppose I can just bridge the connection.

Check this page out... There are many like it, but this one came up first at askjeeves...

http://www.angelfire.com/pa/baconbacon/page2.html

QUOTE (feflicker @ Jan 3 2003, 03:23 PM)

Check this page out... There are many like it, but this one came up first at askjeeves... http://www.angelfire.com/pa/baconbacon/page2.html

Thanks for the info. That site is pretty cool, although it just restated that I will need a .6 ohm resistor. I'll try to use that .750 fuse and see if that works.

Again, thanks for the site, I will use it many more times!

QUOTE (LinksAwakening @ Jan 3 2003, 03:55 PM)

QUOTE (feflicker @ Jan 3 2003, 03:23 PM) Check this page out... There are many like it, but this one came up first at askjeeves... http://www.angelfire.com/pa/baconbacon/page2.html Thanks for the info. That site is pretty cool, although it just restated that I will need a .6 ohm resistor. I'll try to use that .750 fuse and see if that works. Again, thanks for the site, I will use it many more times!

just make sure it's a fast blow type fuse (or a least not slow blow) you could try one of the automotive bus fuses (thin round ones, about an inch long). they even make mini bus fuses (that are about 1 centimeter long and 1/8inch thick, don't you just love mixing metric and us standard). I'd go the mini bus fuse. you can get them a ShadioRack(RadioShack...)

Thanks man! I'll get one of those fuses today (or at least soon), and I'll report back if it works.

Again, thanks for all your help.

Well, today I got a .75 amp fast-acting fuse from RadioShack, and it worked perfectly!! Thanks for all your help!

If anyone wants to know, it is RadioShack part #270-1004. I was going to get #270-1048, which is the same exact fuse, only half the size, but my RadioShack didn't have any left in stock. I still managed to find room, so it doesn't really matter that much.

Again, thanks for your help in clearing up this question for me!

np, better than buying a new one!

QUOTE (MorfiusX @ Jan 5 2003, 06:22 PM)

np, better than buying a new one!

My thoughts exactly!!