Search found 312 matches
- Wed Jul 20, 2011 9:38 pm
- Forum: 2000's Gaming
- Topic: PS2 slim board cutting (big pictures)
- Replies: 0
- Views: 3414
PS2 slim board cutting (big pictures)
For those of you with a 79000 series board, the one that has that annoying little USB piece sticking out the side making the board not square...this is how I was able to cut off that little piece from my board and still get it to work. I haven't seen anything like this around the forums, so I though...
- Fri Jul 15, 2011 6:20 am
- Forum: Case Construction
- Topic: Bondo or Epoxy?
- Replies: 3
- Views: 11798
Re: Bondo or Epoxy?
I'm trying to secure a variety of different plastics to each other. A zenith screen case, various PS2 case pieces...both ABS I think
- Thu Jul 14, 2011 6:00 pm
- Forum: Case Construction
- Topic: Bondo or Epoxy?
- Replies: 3
- Views: 11798
Bondo or Epoxy?
Which is better for holding things together structurally? Which would give the most support for the thinnest layer of stuff used? Anyone have any thoughts?
- Wed Jun 22, 2011 6:12 pm
- Forum: Technical Questions and Answers
- Topic: Fan control circuit
- Replies: 1
- Views: 2474
Re: Fan control circuit
Just in case anyone was actually wondering, I just built the circuit and it functions as designed. The only missing piece is the actual thermal sensor, which I still need to buy. But if it works the way its datasheet says, then the whole thing will work properly.
- Mon Jun 20, 2011 10:52 pm
- Forum: Technical Questions and Answers
- Topic: Fan control circuit
- Replies: 1
- Views: 2474
Fan control circuit
Hi, So I have yet to implement this myself, but I plan to within the next few weeks. But it simulates the way I expected it to work. The circuit produces a switching signal that changes the speed that your DC fan runs at. The MCP9700A is the temperature sensor...I modeled it with a voltage source be...
- Sun Jun 12, 2011 6:38 pm
- Forum: 2000's Gaming
- Topic: PS2 RGB issue
- Replies: 4
- Views: 4388
Re: PS2 RGB issue
That was exactly the problem AngelArm. I didn't know I had to set the system to output RGB. Thanks so much, it looks beautiful!
- Fri Jun 10, 2011 1:51 pm
- Forum: 2000's Gaming
- Topic: PS2 RGB issue
- Replies: 4
- Views: 4388
PS2 RGB issue
I've been trying to get RGB to work on my PSOne screen, but all I can get is video with a very green tint. I've followed all the threads and I've done everything that I've seen in them, and I still get the green picture. I lifted capacitors CV53, 54 and 55, and tied the RGB signals to them, and conn...
- Wed Jun 24, 2009 10:38 pm
- Forum: Technical Questions and Answers
- Topic: Help Me Adapt This Circuit
- Replies: 5
- Views: 2461
Re: Help Me Adapt This Circuit
Replacing it with an NPN transistor should work....if you change the resistor values. R1 and R3 are huge, so there's probably just not enough base current drive to turn the transistor on. A MOSFET doesn't have to worry about that since the input gate is basically just a capacitor and no DC current n...
- Fri May 22, 2009 6:16 pm
- Forum: 1990's Gaming
- Topic: N64 Liuhu Edition
- Replies: 122
- Views: 49318
Re: N64 Liuhu Edition
I've never encountered the button problem you're having, but I did have something similar to your joystick problem. You don't have an oscilloscope available to you by any chance do you? The problem I had was there was a lot of noise on the joystick lines because my switching regulator was in very cl...
- Wed May 20, 2009 5:20 pm
- Forum: Technical Questions and Answers
- Topic: Low Battery Mod Using LM-741
- Replies: 3
- Views: 2449
Re: Low Battery Mod Using LM-741
Well just based off my experience using the thing as an amplifier...and reading the datasheet...a negative supply is needed. Also looking at the schematic representation, there are current sources in there that need to be biased with a negative supply. Unless of course you bias your inputs properly,...
- Wed May 13, 2009 8:53 am
- Forum: Technical Questions and Answers
- Topic: Low Battery Mod Using LM-741
- Replies: 3
- Views: 2449
Re: Low Battery Mod Using LM-741
I'll be honest, I didn't read the whole thing. But just a word of warning...you probably don't want to use the LM741. It's not a single supply op-amp, which means you'll need a negative voltage rail for it to work. Search for a single supply op-amp and use that instead.
- Thu May 07, 2009 10:11 am
- Forum: 2000's Gaming
- Topic: PS2 power
- Replies: 0
- Views: 1278
PS2 power
Has anyone done any thorough testing about the PS2 power requirements? I've searched the forums but haven't found anything significant. I know that the power cube outputs 8.5v....but it is extremely unlikely that the core processor and support devices run off of anything higher than 5v. There has to...
- Fri May 01, 2009 8:57 am
- Forum: Technical Questions and Answers
- Topic: A question about Powerpacks that plug into the wall
- Replies: 3
- Views: 2485
Re: A question about Powerpacks that plug into the wall
Yeah...what he said. Getting a wall adapter is the easier way to go. I like this one:
http://www.jameco.com/webapp/wcs/stores ... tId=380139&" onclick="window.open(this.href);return false;
http://www.jameco.com/webapp/wcs/stores ... tId=380139&" onclick="window.open(this.href);return false;
- Fri May 01, 2009 8:47 am
- Forum: 1990's Gaming
- Topic: GameShark Pro shenanigans
- Replies: 15
- Views: 18078
Re: GameShark Pro shenanigans
Analog electronics are way cooler than Digital electronics!
Ok...that is pretty cool, I'll admit it. Is there a way to update the firmware of the gameshark using this method? Or are there no further updates beyond the 3.3 version?
Ok...that is pretty cool, I'll admit it. Is there a way to update the firmware of the gameshark using this method? Or are there no further updates beyond the 3.3 version?
- Fri May 01, 2009 8:39 am
- Forum: 1990's Gaming
- Topic: Is this a sensible and cheap way to get 3.3v for the N64?
- Replies: 15
- Views: 10575
Re: Is this a sensible and cheap way to get 3.3v for the N64?
The LM317 will still have bad efficiency as well. All linear regulators work by basically using a pass-transistor as an adjustable "resistor". So it senses the output and adjusts the resistance necessary to keep the output at the voltage you want. So it's basically just burning power to keep a const...