Service Information
5-16
Table 5-4
Troubleshooting procedure
Step
Item/component
Required condition
Comments
1
GND pad
All voltages referenced to digital ground
(GND pad).
2
+6V pad
+6VDC
Relay voltage.
3
+5V pad
+5VDC
Logic voltage.
4
+14.6V pad
+14.6VDC
Relay bias voltage.
5
+V pad
+3.5VDC*
Regulated relay voltage.
6
U105, pin 5
ID CLK pulses
During power-up only.
7
U105, pin 6
ID DATA pulses
During power-up only.
8
U100, pin 7
STROBE pulse
End of relay update sequence.
9
U100, pin 2
CLK pulses
During relay update sequence only.
10
U100, pin 3
DATA pulses
During relay update sequence only.
11
U100-U104, pins 10-18
Low with relay energized;
high with relay de-energized.
Relay driver outputs.
*+3.5VDC present at +V pad under steady-state conditions. This voltage rises to +5.7VDC for about 100msec when relay configuration is
changed.
Summary of Contents for 7013-S
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