Ground +12v

12. Check the main logic board voltages. Measure for +12v DC at capacitors C187 and C197 (identified in graphic below). Ground the black probe to the logic board screw next to the battery, and touch the red probe to the positive node at capacitor C187, and then at capacitor C197. Do you measure +12v? If yes, go on to the next step. If no, replace the logic board.

Capacitors CI 87. CI 97

  1. Replace power supply.
  2. Replace the logic board.
  3. Replace the inverter board.
  4. Replace neck assembly.

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