User's Manual

66
 Stop powering the module, then proceed with the polarisation of the MOSFETs.
- Instrument list
coils on the SCH0427A board. Power the module and check with a Digital Tester that the level of the
voltages on the Interface Boards (SCH0426A and SCH0371B) matches the one shown in table Tab.1
and Tab.2 respectively:
CONTROL POINTS VOLTAGE MEASUREMENT
PIN 3 of IC5
PIN 3 of IC6
+50V
PIN 2 of IC5
+20V
PIN 2 of IC6
+24V
PIN 3 of IC4
+12V
PIN 3 of IC3
+5V
CONTROL POINTS VOLTAGE MEASUREMENT
TP1
+50V
TP2
+28V
TP3
+50V
Tab.1
Tab. 2
MEASURE INSTRUMENT
Polarisation of
BLF244 and SD2942 Transistors
Two Digital meter