Hologic DISCOVERY A - Miscellaneous Problems

Discovery QDR Series Technical Manual
6-15
Note: The three Tank Cover Gasket screws at the rear of the tank and shown
below are the most critical locations for oil leaks. Always check these
screws if a leak is suspected.
4. Important: Do not remove screws located on the tank. There are no field
replaceable units or required adjustments inside the tank, so there is no reason to
loosen or remove any screws on the tank.
Figure 6-6. Tank Cover Gasket
6.16 Miscellaneous Problems
Problem... Symptom... Solution...
Detector X-Ray Survey bar graph is
ramped, or it appears as 3 or 4
separate ramped sections.
Replace the Detector Assembly
X-ray lamp Turns on with X-rays off Replace the Distribution Board
System Fails HI-Pot test Check all ground connections
Make sure ground wire terminals are secure
Check crimped terminals
Hi voltage
transformer
Buzzing sound from X-ray tank
assembly
Check torque on transformer bolts
System No power Check Emergency Stop Switch
Check main power cord
Check Torroid Assembly circuit breaker
Check AC input voltage
6
4
3
1
2
5
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FRONT