Medivance Arctic Sun 2000, Service Manual

Page: 38 / 85

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6.2 Card Cage Indicators and Test Points
LEDs on the edges of the cards indicate the status of major functions and may be helpful in
troubleshooting. (Figures 6.4 to 6.7) Access to the power supply voltages is also available at the
card edge.
Note
: Use care in accessing these test points! An insulated probe is needed to avoid shorting the
test point to the frame. Doing so will cause circuit board fuses to blow, resulting in the need for
component level repair.
Power Card
Figure 6.4
Processor Card
Figure 6.5
Isolation Card
Figure 6.6
I/O Card
Figure 6.7
(NOT ACTIVE) VGG
TEST VCC
TEST GND
TEST 24VU
LED 24VS
TEST 24VS
LED (NOT ACTIVE) 24VU
TEST
RS-232 #1 PAT.
TEMP.
#2 PAT.
TEMP.
#1 RS-232
#2 ECHO
GAS FILL COOL CHIL FLOW VV BV
MON
BIT CTL
WDOG MON
WDOG CTL
BIT UI
CONN