
5-31Controller Cards
Original — December 1991 UM4.6:CS6003
Step 13: On the controller power conversion card, connect a jumper
between the banded end of diode CR10 and the top of
resistor R15 (left side of R15 on new card).
Step 14: Connect the voltmeter between the heatsink (cathode) of
diode CR3 and the common (COM) test jack on the front of
the controller power conversion card.
Step 15: Adjust the 5 VOLT (R53) potentiometer until the voltmeter
reads between 4.920 and 5.095 volts dc. The ON indicator on
the controller power conversion card and the RELAY TEST
indicator on the calibrator should go out. If not, the controller
power conversion card requires repair.
Step 16: Adjust the 5 VOLT (R53) potentiometer on the controller
power conversion card until the voltmeter reads 5.180
± 0.005
volts dc.
Step 17: Connect the voltmeter between pin 41 on the backedge
connector and the common (COM) test jack on the front of the
controller power conversion card.
Step 18: Adjust the –28 VOLT (R29) potentiometer on the controller
power conversion card until the voltmeter reads between
–26.45 and –27.53 volts dc. The ON indicator on the
controller power conversion card and the RELAY TEST
indicator on the calibrator should go out. If not, the controller
power conversion card requires repair.
Step 19: Adjust the –28 VOLT (R29) potentiometer on the controller
power conversion card until the voltmeter reads –28.00
± 0.05
volts dc.
Step 20: Disconnect the voltmeter and jumpers.
Step 21: Set the calibrator ON/OFF switch to OFF.
Step 22: Remove the controller power conversion card.
5
Commenti su questo manuale