Thermo Scientific Mercury Freedom 80i Manual page 60

Troubleshooting
System Troubleshooting Guides
4-14 Mercury System Manual
VOLTAGES:
>MOTHERBOARD
INTERFACE BOARD 80i
INTERFACE BOARD 82i
I/O BOARD
RANGE AVG
INTERFACE BRD80 VOLTAGES:
> PMT SUPPLY
3.3 SUPPLY
5.0 SUPPLY
15.0 SUPPLY
P15.0 SUPPLY
24.0 SUPPLY
-15.0 SUPPLY
RANGE AVG
Model 80i interface board voltages screen
When a voltage reading displayed on the Interface Board Voltages screen is
different than the normal value, check the actual voltage reading on the
interface board with a voltmeter. You can also use a voltmeter to check
interface board voltages when the voltage readings are normal but you
suspect there is a board problem.
Note If the interface board voltages all read 0.0 V, check that the 24 V
LED is ON (Figure 4–1). If it is not ON, 24 V power is not being applied
to the interface board.
The interface board provides voltage check points for verifying board
voltages. Refer to Figure 4–1 for the interface test point locations on the
interface board.
DIAGS ALARM
600.0 V
3.3 V
5.0 V
15.0 V
15.0 V
24.0 V
-15.0 V
DIAGS ALARM
▲
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