1541 PSU Replacement

The 1541 has a built in +5V/+12V power supply which can be replaced with a switching mode powersupply, making it running much cooler, draw less power and weigh less. The 1541 capacitors are getting old and will likely need to be replaced soon.

Original powersupply components should be removed and +5V / +12V connected to respective output pin, or what used to be the output pin, of the regulators. I wanted to keep the heatsink as it helps holding the PCB up.

 


PCB stripped of the old components.

 

 

RED = +5V
YELLOW = +12V
BLACK = Ground / Negative