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  1. install the resistors and diodes
  2. install the ceramic capacitors (not the electrolyte caps yet)
  3. install the TO-220 regulators (IC4, IC5, IC7), the black isolated regulators do not match with the pcb holes, its not important. bend the pins as short as possible that they can be soldered from the rear-side of the pcb
  4. install IC3 - I prefer without a socket for better thermal regulation, but should be fine with a socket too.
  5. install the electrolyte caps
  6. install the LEDs - LED orientation - the square pad is ground (short leg) its the flat side of the LED designator
  7. install the fuse socket and MTA 156 2pole header
  8. install the DC-DC bricks (IC1, IC2)
  9. Double check the IC orientation and part values, Capacitor polarity 
  10. wash the PCB carefully and let they dry over night 
  11. optional - use a bench psu for testing with current limiter 12v /up to 250- 500mA don't use a smaller current limit to avoid problems while start, the 250mA is a given value without any devices connected
  12. must do: all LEDs must be on, check against the given PCB voltages - all voltages must be correct
  13. Install the Heatsink by the self adhesive tape and push the heatsink against the DC-DC for 20-30seconds (new task since 24.Nov.2022)

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