| Date: |
2017-07-13 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Repair |
| Notes: |
Replaced the power supply circuit board (9977-073) in the LI-7700. The analyzer was having a few problems before this repair: atmosphere pressure was about 40-50 kpa, spin motor did not work, fluid pump did not work. Li-cor emailed the replacement board as a warranty replacement (no cost). We opened up the bottom enclosure plate and the enclosure cylinder to replace the board.
After the repair, the pressure read 100.1 kPa and the spin motor and fluid pump both worked. |
| Entered by: |
Daphne Szutu |
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