Control Data Corporation CDC CC63X Hardware Maintenance Manual page 68

007
008
009
ABC
I I I
1
I
I
y
I
2
I
I.
I
I
I
3
I
4
I
I
3 3 3
A B· C
6A-4
SAM 2-2
c. Replace power cord with a known good power cord
and test.
d. Power off (interlock to center position) disconnect
power cord from ac entry panel receptacle at rear
of terminal. Check continuity of entry components
as follows:
i
H
8.Z
00
F
r:::::::J
CONNECTOR
ON PWR SUPPLY
BOARD
CONNECT OHMMETER
BETWEEN
A and B
Band C
C and D
D and E (Actuator out:)
E and F
G and H
INTERLOCK
E
IF OPEN
REPLACE AND TEST
Line Filt:er
CBl
Wire
Interlock
Wire
Line Filter
04299-3
e. Replace power
s~pply
board (procedure 8) and
retest.
Measure power supply output (procedure 7) to ensure
voltage is missing.
N
Is voltage missing?
I
1
Disconnect extender cable and power on the logic
drawer. If all four LEOs light, go to step 011 of
this SAM. If all four LEOs are not lit, go to
step 008 of this SAM.
Replace power supply board (procedure 8).
Replace main logic board (procedure 10).
62940034 B