104
Teledyne API T500U CAPS NO
2
Analyzer with NumaView™ Software
083730510A DCN8172
TP1 TP2 TP3 TP4 TP5 TP6 TP7
DGND +5V AGND +15V -15V +12R 12V
Figure 5-10. Location of DC Power Test Points on Relay PCA
Table 5-7. DC Power Supply Acceptable Levels
POWER
SUPPLY
VOLTAGE
CHECK RELAY BOARD TEST
POINTS
MIN V MAX V
FROM
Test Point
TO
Test Point
NAME
#
NAME
#
PS1
+5
DGND
1
+5
2
+4.85
+5.25
PS1
+15
AGND
3
+15
4
+13.5
+16.0
PS1
-15
AGND
3
-15V
5
-13.5
-16.0
PS1
AGND
AGND
3
DGND
1
-0.05
+0.05
PS1
Chassis
DGND
1
Chassis
N/A
-0.05
+0.05
PS2
+12
+12V Ret
6
+12V
7
+11.8
+12.5
PS2
DGND
+12V Ret
6
DGND
1
-0.05
+0.05
I
2
C BUS
Verify operation of the I
2
C bus by checking whether the LEDs are flashing at the Relay
PCA’s D1 and the Valve Driver PCA’s D2. If both are solid lit or are not on, and the DC
power supplies are operating properly, there is a problem with the I
2
C bus.
LCD/DISPLAY MODULE
Assuming that there are no wiring problems and that the DC power supplies are operating
properly, the display screen should light and show the splash screen and other indications
of its state as the CPU goes through its initialization process.
Summary of Contents for T500U
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