rusefi_documentation/Prometheus-Assembly-Power-Supply.md

# Prometheus Assembly - Power supply block

## (a) - regulator circuits

### Component List

![Components](Hardware/Prometheus/Prometheus_assembly_1a-comp.jpg)

### PCB Top Side

![Placement](Hardware/Prometheus/Prometheus_assembly_1a-pcb.jpg)

## (b) - minimal circuitry

### Component List

![Components](Hardware/Prometheus/Prometheus_assembly_1b-comp.jpg)

### PCB Top Side

![Placement](Hardware/Prometheus/Prometheus_assembly_1b-pcb1.jpg)

## (c) - feedback

### Component List

![Components](Hardware/Prometheus/Prometheus_assembly_1c-comp.jpg)

### PCB Top Side

![Placement](Hardware/Prometheus/Prometheus_assembly_1c-pcb.jpg)

## (d) - electrolytic capacitors & protection (observe the polarity!)

### Component List

![Components](Hardware/Prometheus/Prometheus_assembly_1d-comp.jpg)

### PCB Top Side

![Placement](Hardware/Prometheus/Prometheus_assembly_1d-pcb1.jpg)

### PCB Bottom Side

![Placement Bottom Side](Hardware/Prometheus/Prometheus_assembly_1d-pcb2.jpg)

**Now check voltages: +5В, +3.3В!**