Silva NX2 - TROUBLE SHOOTING - COMPASS TRANSDUCER 45°

102TrubShotNX2.doc Page 1 Latest update: 14 Feb -03
10.2 TROUBLE SHOOTING - TEST WAVE FORMS COMPASS
TRANSDUCER 45°
Fault
indication
Check
signal at:
Possible
reason if not
Correct
waveform
DMM test. Oscilloscope
Correct wave form
No output
signal
TP 1 Defect V1 or
LC 1
+12 V
No output
signal
TP 2 Defect U2 +8 V
No output
signal
TP 3 + 4
U 3 Pin 1
resp. 2
Defect U3 DC 4 V
No output
signal
TP 5
U 7 Pin 5
No Not
possible
(pulse)