Fujitsu AS*G24LFCA Service Instruction page 61

SERVICE PARTS INFORMATION 7
IPM
(
Mounted on Transistor PCB)
Check Point 1
Disconnect the connection wires between the Transistor
PCB - Capacitor PCB and Transistor PCB - Inverter
Compressor.
Set the tester to the "Resistance" mode, and measure
the resistance between the following terminals.
TM301 (P) - TM305(U) / TM304(V) / TM303(W)
TM302 (N) - TM305(U) / TM304(V) / TM303(W)
Judge the result of
Terminal
Tester(+) Tester(-)
P U
P V
P W
U P
V P
W P
N U
N V
N W
U N
V N
W N
Check Point 2
Set the tester to the "Diode" mode, and measure the voltage value between the following terminals.
Judge the result of as follows:
Terminal
Tester(+) Tester(-)
P U
P V
P W
U P
V P
W P
N U
N V
N W
U N
V N
W N
as follows:
Resistance value
Over 2k
(Including )
Over 20k
(Including )
Over 2k
(Including )
Tester display
0.3V 0.7V
02-36