Hitachi RAK-25NH4 - System Power Module Diagnosis

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SYSTEM POWER MODULE DIAGNOSIS
BASE
Collector
Emitter
+
–
PGU PGV PGW
NGU NGV NGW
UVW
+ –
P1 P2 UN1
L2 L1 W V
Circuit diagram of
the device
(excepting the
reflux diode)
Circuit diagram of
the module
Terminals symbol
mark of the module
See next page
for measuring
value using
tester