lief138 Posted August 1, 2008 Report Share Posted August 1, 2008 Hi Folks,First let me say, Ive been searching so please take it easy on me.OK so I am most of the way done with the power supply on the MB-6582 baseboard. I remember reading somewhere around here that its possible that the output pins from the brick might not have the correct voltages or something along those lines. I have been looking for this info but havnt found it. Could some one point me in the right direction or simply tell me what exactly needs to be tested so I can be positive before I plug it in. I looked at the the optimized diagram and it looks like I only need to concern myself with the 9V and 5V outputs on the bottom left and right of the plug. Someone should set me straight so I can get past my fear of plugging this thing in.Lief Quote Link to comment Share on other sites More sharing options...
Goblinz Posted August 1, 2008 Report Share Posted August 1, 2008 Took me two searches and a couple of minutes!"power supply pin" didn't yield anything useful."Power supply pinout" came up with this.http://www.midibox.org/forum/index.php/topic,9775.0.htmlHope that's what you were looking for. G Quote Link to comment Share on other sites More sharing options...
frailn Posted August 1, 2008 Report Share Posted August 1, 2008 You know what - I've been struggling with that Optimized PSU this week, and it didn't cross my mind that the voltages might be different coming out of my C64 transformer's DIN pin-out, then what I'm reading on schematics and on Daniel Price's web page. I suggest flipping your PSU board over and checking the voltages at the power port solder points with a multimeter. That way, you will know where your 5v and 9v lines need to be connected - wherever the pins read 9V or 5V. I'll be doing that for mine later today. This could be the solution to my problem. I was just following Daniel's example exactly. Lesson learned. I tried to test the voltages with a multimeter by touching the DIN pins coming out of the C64 transformer, but that was just too hard to get a reading. The multimeter contacts kept slipping off.I wouldn't fear plugging it in, just don't hook it up to the CORE or SID modules when you do test the power. My first three iterations of the OPSU were so messy and so many shorts, but I plugged it in a bunch of times and had no scary things happen. Just be careful how you handle the board while you are testing connections - I hold mine by the edges only. Quote Link to comment Share on other sites More sharing options...
Smithy Posted August 1, 2008 Report Share Posted August 1, 2008 I did exactly what frailin did, and it is the safest way to go.I was using stripoard so what i did is stick the Probes in the next hole up from the soldered joint.Its safer this way so that the probe doesnt slide off the solder blob and end up hitting the wrong pin and creating a short.My c64c transformer had the exact same pin out as the most popular pinout fortuneatly enough. Quote Link to comment Share on other sites More sharing options...
lief138 Posted August 1, 2008 Author Report Share Posted August 1, 2008 Ahh! You guys got my back. Thanks. Special thanks to Goblinz for the link, yeah thats the one. And while Im giving out awards, Ill give my self the 'Tard searcher' award.... I understand that I should follow the testing steps from the indivual components, so I will go forward with this tonight hopefully. Thanks again.Lief Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.