A20112 Power Supply Schematic | Free — 2024 |

| Pin | Signal | Wire Color (typical) | |------|--------|----------------------| | 1 | +5V Standby | Purple | | 2 | +5V Main | Red | | 3 | GND | Black | | 4 | GND | Black | | 5 | +12V | Yellow | | 6 | -12V | Blue | | 7 | Power Good (PG) | Gray | | 8 | PS-ON (active low) | Green | | 9 | +3.3V sense | Orange | | 10 | +5V sense | Brown | | 11 | GND sense | Black | | 12 | VSB return | Black |

Don't wait for your filter to fail completely. Keeping one of these as a spare is a lifesaver for long-term aquarium maintenance." Which version of the a20112 power supply schematic

Are you looking to a specific noise issue in a 20112, or are you planning a full restoration or build? | Pin | Signal | Wire Color (typical)

If your load requirements match, replace the A20112 with a standard open-frame supply: a20112 power supply schematic