Service manual

PN 4237242C
4.9-1
SERVICE AND REPAIR PROCEDURES
DILUTER RESOURCE ADAPTER (DRA) 1 AND 2 CARDS
4
4.9 DILUTER RESOURCE ADAPTER (DRA) 1 AND 2 CARDS
Tools/Supplies Needed
B #1 Phillips-head screwdriver
B #2 Phillips-head screwdriver
Removal
1. Turn OFF the instrument’s power.
2. Remove the top cover as directed under Heading 4.3.
3. Locate the DRA card(s) you are replacing (Figure 4.6-1).
4. Remove the screw that fastens the card's metal mounting bracket to the rear of the
chassis by using a #1 Phillips-head screwdriver (Figure 4.6-1).
Figure 4.9-1 DRA Card
5. Remove the three ribbon cables (P1, P2, P3) connected to the Motor/Solenoid Driver
card and the AIM voltage cable connecting the SPAD card to the URA card.
6. Remove the DRA card(s).
7242011A
J3
J2
J1
X5
(Sets card
for #1 or #2)
X4
(Sets IRQ
for 11 or 12)
X6
(ON)
TO
MOTOR/SOLENOID
DRIVER CARD
C