Ohaus Adventurer ™ Balances AX423N

Remove the balance weighing pan and securely set it aside

Gently release the two hinges securing the Windring to the balance top housing

Follow the instructions for removing Adventurer housing from page 3-4

Ensure the device is powered off

Gather necessary tools for replacement

Remove the balance load cell metal cover

Verify visibility of the Strain Gage load cell

Locate the cable connecting the Strain Gage load cell to the balance main PCBA

Remove the cable connecting the Strain Gage load cell to the balance main PCBA

Remove the balance load cell metal cover

Locate and remove the cables connecting the Conventional MFR load cell to the balance main PCBA

Locate and remove the screws securing the Conventional MFR Cell to the bottom housing

Disconnect the following cables

Remove the screws securing the Main PC Board to the Base

Install replacement Main PC Board in reverse order

Check if the LCD display on the new board is clear of protective plastic

Turn off the balance and unplug the power cord

Preliminary Steps for a balance with a Draft Shield

Remove the weighing pan and wind ring and set aside

Remove the EMC plate by removing the two screws holding it to the balance top housing

Remove the two screws securing the draft shield housing to the balance

Remove the keypad membrane cable by unfastening the connector

Remove the TFT LCD cable by lifting the connector lock upwards

Detach the latch located at the right front of the balance