Method For Diagnosis Of Power Module - Hitachi RAS-25CNH1 Service Manual

Method for diagnosis of power module

MODEL
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
MP 6501
BASE
+
+ +
Bv
Bu
+
U
- -
Bu
Bv
-
POWER MODULE P.W.B.
– 110 –
COLECTER
EMITER
Bw
+
V
W
-
Bw