Fujitsu ADUH09LUAS1, Service Manual

Page: 104 / 156

4-6. IPM on transistor PCB
Check point 1
1 Disconnect the connection wires between the transistor PCB—capacitor
PCB and transistor PCB—inverter PCB.
2 Set the tester to the resistance mode, and measure the resistance between the following termi-
nals.
TM301 (P)—TM305 (U)/TM304 (V)/TM303 (→)
TM302 (N)—TM305 (U)/TM304 (V)/TM303 (→)
3 Judge the result of 2 as follows:
Terminal
Resistance value Tester
(+) (-)
P U
Over 2 kΩ (Including ∞ Ω) P V
P →
U P
Over 20 kΩ (Including ∞ Ω)
V P
→ P
N U
N V
N →
U N
Over 2 kΩ (Including ∞ Ω) V N
→ N
4-6. IPM on transistor PCB
- (03-52) -
4. Service parts information
TR
O
U
B
LESH
O
O
TI
N
G
TR
O
U
B
LESH
O
O
TI
N
G