Recent content by smrieck511

thanks very much. Yeah I did get this working a while back. It's a great little OS9 machine for sure... now I need to find out if it's possible to replace the backlight.

It became obvious to me how much more difficult it is to get a GLU off the board than it is to get the 44 pin chips. Did not seem like heat and time alone were ever going to get it. I've taken them off easily when I've been the one who originally soldered them with leaded solder but getting...

good point I was literally going to get a hacksaw blade and carefully cut the chips out. I was wondering about cutting traces to ground if that would have much affect. Makes sense.

Got the GLU off. Not without a fight and too much heat. One thing I realized, in the case of a badly battery bombed board where you know you're not gonna want the board, after the solder has at least weakened significantly, you can pry the chip up from the corners with tweezers which will take...

thanks yeah this is a donor board that's been bombed. Beyond repair I think so I'm not too worried about it warping. What temperature are you typically using?

thanks. Yeah I should make it all one thread going forward. What temperature do you typically use?

I'm trying to remove the GLU from a IICX board without damaging it. Currently "practicing" on the NUCHIP which I don't need. Removed as much solder as I could with wick and put plenty of flux on the pins. Then attempted to remove the NUCHIP with hot air using all the technique I'm familiar...

Ok I understand now. Thanks.

Here's a good example. What would then be the difference between Pin 7 (-x) and Pin 10 (for example) which is not shown at all ? Edit: I think I get it..the -x are an actual listed part of the circuit (identified in blue lettering. Pin 7 in this case is IE0) though they are simply soldered to...

Very helpful post! Currently in the reloaded simsimac trenches....

Sorry for this noobie question but what does this mean? It can't be ground, those pins are obviously marked and it can't be to nothing, those pins are left off the schematic so I'm lost on pins going to -x.

Just went through every single pin for every single address and data line per the schematic redraw matrixes.... exhausting. Everything checks ok.

Oh yeah sorry I do get a pop but thats it.

Agreed. Thanks.

Also no bridges.