I want to build a new PCB for a Marantz 1250 amplifier. The previous broke the board in many places.
I am looking for the optimal footprint for :
double base horizontal pin (for lack of a better word)
pushbuttons
see attached pictures.
I used MountingHole:MountingHole_2.7mm_Pad_TopOnly
I intended to position them on the PCB based on the parts measurements.
My approach is to draw the schematic (with the footprints) then go to the PCB editor.
But is it the best approach since I have the PCB figure in the service manual. Maybe I should have just placed holes and then just replicate the traces - any thoughts?
Thanks
robin
I hereby certify that I am not simply asking someone else to design a footprint for me.
This is an auto-generated message that is in place on the “footprints” section of the KiCad.info forum. If I remove it and ask for a footprint to be designed anyway, I understand that I will be subject to forum members telling me to go design my own footprint or referring me to a 3rd party footprint site.
You could definitely do that, but then you will miss out on may tools that will help you along the way. In KiCAD starting with an schematic and the doing the PCB is the recommended workflow and how it shines.
Create a schematic . . . and any symbols you need, don’t rely on a schematic you find in a manual, it may well be out of date. By all means use it as a starting point, but you need to 100% confirm your schematic is correct to the PCB in front of you . . . taking into account anything that might have been amended or fixed by way of wire wrapping, I see some in the pictures.
Are you using existing components ? (how are your desoldering skills ?) or can you find new equivalents, those push button switches look old . . . how are you going to spec the caps ? I believe that are important for audio quality . . .
Make a plan for all of this before you start . . . if you can’t figure out a plausible solution for all of it don’t start. Its a big job . . .
I will use new components where I can.
A big challenge is that this PCB has to plug in another PCB with 10 individual pins (the ones in the picture)
I will keep push buttons - that is part of the charm of these old amps (~1975) with their nice heavy “click”. they are very well built and work well once cleaned.
