
5-28 Controller Cards
UM4.6:CS6003 Original — December 1991
The R11 potentiometer on the controller
power conversion card is not user
adjustable. It is set at the factory and
should never be readjusted.
Caution
5.9.2 Calibration Procedure
Use the following procedure to calibrate the card:
Step 1: Verify that the calibrator ON/OFF switch is OFF.
Step 2: Insert the controller power conversion card shown in
Figure 5-15 or Figure 5-16, in the test slot labeled CONT
POWER CARD.
Step 3: Set the calibrator ON/OFF switch to ON and allow five
minutes for the power conversion card to stabilize.
Note
If the calibrator does not turn on, return to Step 1.
Remove fuse F1 on the controller power
conversion card and proceed to Step 3. Complete
Step 3, reinstall the fuse, and allow the card to
stabilize.
Step 4: 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 for new cards).
Step 5: Connect the voltmeter between test point TP1 and the
common (COM) test jack on the front of the controller power
conversion card. The voltmeter should read 4.900
± 0.005
volts dc. If not, adjust SUPV (R22) potentiometer on the
controller power conversion card to obtain the proper reading.
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