Fresenius Medical Care 4008 E Technical Manual page 29

Display test
Test description:
Check of all displays and indicators on the monitor front
– Display test
– Status LED
– Alarm LED
– Seven-segment display, all dark
– Seven-segment display, all 8888
– Bar graph
– CPU1/CPU2 alarm tone
This display test must be monitored by the user!
Illustration:
LP 632
CPU 2
X632/ B27
X631/ A20
LP 631
CPU 1
LP 635
(4008 E)
Display
LP 924
(4008 H)
1-22
Fresenius Medical Care 4008 4/08.03 (TM)
X632/C29
X632/ B28
X631/ A21
LP 630
Mother
board
LP 649
(4008 B)
board
LP 922
(4008 S)
Testgenerierung/Generation of Test
Rueckmeldung/Acknowledgement
CPU2_AL
LP 633
Input
board
DATA BUS
Test Display
X634R/A16
LP 634
Output
board
+LS X634L/A13
-LS X634L/B13
8888
8888
8888
8888