ADV Service Manual P/N 83020790 A
Ohaus Corporation
www.ohaus.com
33
Figure 4-8. Sensor Board Adjustment.
4.4.2.6 LED Removal/Replacement - Precision
When the LED (mounted on the Transducer) has been determined that it is defective and requires replacement,
proceed as follows:
1. Refer to paragraph 4.3.1, page 4-10 and open the balance.
2. Locate the four screws holding the Transducer Shield in place. Remove the screws.
3. Remove the Transducer Shield.
4. Remove the Ratio Beam per paragraph 4.4.2.4.
5. Remove the Position Sensor Board as per paragraph 4.4.2.5.
6. Locate the LED which is positioned in front of the sensor on the Position Sensor Board.
7. Unsolder the LED and replace.
8. Reassemble the balance. Perform procedures for the Position Sensor Board paragraph 4.4.2.5 and
procedure 4.4.2.4 for the Ratio Beam replacement.
9. Perform procedure 4.4.2.7 and replace the Transducer.