Service manual

PN 4237242C
2.5-2
INSTRUMENT DESCRIPTION
DATA ACQUISITION
Outputs
Adjustments
There are four adjustable resistors on this card. They are adjusted at the factory to set dc
levels in the Preamp and Dc Restorer stages. The adjustment requires a test setup that is
impractical for field procedures.
Jumpers
Table 2.5-2 Sensor Preamp Adapter Card Output Connections
Connector Description
J3-J6 Analog power distribution (out)
J9 WBC signal
J11 RBC signal
J12 PLT signal
Table 2.5-3 Sensor Preamp Adapter Card Jumper Settings
Jumper Description MD II Setting
X3 Grounds WBC Dc Restorer input for subassembly adjustment and testing. OFF
X4 Connects WBC Preamp output to Dc Restorer circuit. ON
X7 Connects RBC Preamp output to Dc Restorer circuit. ON
X8 Grounds RBC Dc Restorer input for subassembly adjustment and testing. OFF