Service manual

PN 4237242C
4.11-2
SERVICE AND REPAIR PROCEDURES
AC POWER/VACUUM RELAY CARD
Verification
1. Turn ON the instrument’s power.
2. Wait for the system to reach the Main Menu. This verifies the operation of relay K2.
Note: Power tests are performed during the power-up cycle to verify the +24 V power
supply and the Linear Power Supply card voltages. If the tests are passed, the K2 relay is
working properly.
3. Verify relay K1 operation by either listening for the vacuum pump to turn on during
self-test or doing a Vacuum Adjustment procedure (Heading 4.30) to turn on the
vacuum pump.
4. Perform an SVP (Heading 5.1).