Service Information
5-16
Table 5-5
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 conÞguration is
changed.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
To Next Page
Loading...
Need help?
General
