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eVOLVER
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      • Router Setup
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      • Pump Calibration
      • Manual Calibration - calibrate.py
  • Upgrade Base eVOLVER Hardware
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    • Starting an Experiment
      • Carboy Media Prep
      • Preparing Vials
      • Setup Waste Carboy
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      • OD Blank
      • GUI Start Guide
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    • Use the GUI to Control Parameters
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      • Contamination
      • Vial Overflow, Pump Failure, and Spills
      • Tubing and Connector Blockage and Bursting
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      • Replacing Photodiodes and LEDs
      • Heating Element
      • Stirring
    • Server Troubleshooting
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      • Motherboard Troubleshooting/Replacement
      • 12V Power Supply Troubleshooting/Replacement
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  • Hardware
    • Overview of Hardware Architecture
    • Overview of Fluidics
      • Tubing and connectors
      • Peristaltic Pumps
      • Fluidics box
    • Overview of Millifluidics
      • IPPs (Integrated Peristaltic Pumps)
      • Pressure Regulator
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      • Universal Vial Cap Construction Guide (Luer Connectors Only)
      • 5 and 7 Port Nylon Tubing Caps Construction Protocol
    • Smart Sleeve
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      • 🌪️Stirring
      • Temperature
      • Optical Density
        • OD90 vs OD135
    • Motherboard Layout and Circuitry
      • 🌡️Arduino
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        • Setup Phototroph eVOLVER
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          • Photo-eVOLVER Smart Sleeve Construction Guide
        • Experiment Guide
    • Custom Fluidics
      • Adding a Third Pump Rack
      • Bubblers / In-Vial Aeration
        • Bubbler Construction Protocol
        • Bubbler Cleaning Protocol
      • Running the slow pumps
    • min-eVOLVER
      • About
      • min-eVOLVER Construction
        • Parts
        • Construction Protocol
      • Fluidics Setup
      • Software Installation and Startup
      • send_command.py
      • Calibrations
      • Starting an Experiment
      • ePACE with min-eVOLVER
        • [v1.1] ePACE with min-eVOLVER
      • Troubleshooting
    • Interfacing with Other Systems
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  • Replacing a 12V Power Supply

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  1. Troubleshooting
  2. Vial Platform Troubleshooting

12V Power Supply Troubleshooting/Replacement

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Last updated 1 year ago

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The 12V power supply powers the heating and stirring elements in the Smart Vials. If both of these elements are not properly functioning and you have inspected the internal circuitry for damage (see Motherboard Troubleshooting/Replacement for more information), the next element to check is the 12V power supply.

Troubleshooting

  • measuring w multimeter?

Replacing a 12V Power Supply

If you have found that the 12V power supply is not functioning, you can replace it following the steps below.

Before getting started, be sure to unplug the eVOLVER from the wall outlet.

  1. The 12V power supply is fastened to the bottom of the vial platform with 4 hexagonal bolts. Use an Allen wrench to remove these bolts.

  1. Unscrew the wiring that connects the motherboard to the 12V power supply using a flathead screwdriver. This is easiest to do when the power supply has been unfastened from the case so that it can be turned on its side.

  1. Attach the wiring to the replacement 12V power supply, making sure that the wires are in the correct configuration, as shown below.

Bottom view of eVOLVER: 12V power supply volts are circled in red
Side view: wiring that connects the 12V power supply to the motherboard
Top view: