# Main Board Before Parts Replacement

#Procedure

1. Start service support mode. (Starting Service Support Mode)
2. Select [05 Adjustment for Replacement Parts].
   
3. Select [501 Main Unit].
   
4. Select [50103 Electric Parts].
   
5. Select [5010301 Main Board].
   
6. Select [Before Parts Replacement].
   
7. Press [Start].
   
8. When the following screen appears, turn off the product.
   When the power of the product is turned on, the product starts in service support mode, and the [After Parts Replacement] screen of the main board is displayed.