6-10
2000-CSS COMBINED SONAR
0017423_REV_C
The following are the main voltage test points on the Power Distribution board:
SUPPLY
TEST POINT
RETURN
+5 VDC +/-0.2V
TP7
TP12
+12 VDC +/-0.6V
TP8
TP12
-12 VDC +/-0.6V
TP9
TP12
+27 VDC +/-0.6V
TP10
TP12
+48 VDC +/-2.0V
TP4
TP5
Table 6-3: Main Voltage Test Points on Tow Fish Power Distribution Board
Other voltages to check on the SSB board and labeled as such are:
SUPPLY
+3.3 VDC +/-0.1
+5 VDC +/-0.2V
+12 VDC +/-0.6V
-12 VDC +/-0.6V
Table 6-4: Other Voltages on SSB Board
6.3.7.4
Test Lights
1.
Power Distribution Board.
Monitor the +400 volt D4 and +48 volt D8 LED’s. They should be on steady.
2.
SSB Board.
There are two LED’s of interest. ‘LED A’ flashes when 120 kHz is transmitting. ‘LED B’ flashes when
410 kHz is transmitting.
3.
SIB Board.
There are four LED’s of interest. They have the following status when the system is operating
properly.
D1 Off
D3 (Orange)
Flashes at 2 Hz
D2 Off
D4
(Green) On
SSB Board Test Points
Содержание 2000-CSS
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