Fujitsu AB*A30LBT Service Instruction page 83

SERVICE PARTS INFORMATION 3
Active Filter Module
Check Point 1 : Check Open or Short-circuit and Diode (D1)
Remove connector, check the open or short-circuit and the diode in the module
L1
+IN
-IN
Power factor control
If it is abnormal,replace ACTIVE FILTER MODULE
Check Point 2 : Check the Output DC voltage (between P and N1)
Check the Output DC voltage (between P and N1) of compressor stopping and operating.
>> If the output voltage of compressor operating is less than the output voltage of compressor stopping,
Active Filter Module is detective. >> Replace Active Filter Module
L2
P
D1
N
N
Io
Check the open or short-circuit
Terminal
Tester(+) Tester(-)
(+) ( )
( )
N
(+)
P
L1 L2
P N
Control Box
L1,L2
L2 N
Check the diode
Terminal
Tester(+) Tester(-)
L2
P
P L2
Ref. value 1
Specifications for Multimeter
Manufacturer : FLUKE
Model name : FLUKE11
Power source : DC9V.
07-38
Resistance value
+ -
360k
20%
0
+ -
720k 20%
1.01M / 761k
(Ref. value 1) (Ref. value 2)
+ -
360k
20%
1.65M / 1.14M
(Ref. value 1) (Ref. value 2)
Resistance value
1.32M / 663k
(Ref. value 1) (Ref. value 2)
1.01M / 762k
(Ref. value 1) (Ref. value 2)
Ref. value 2
Specifications for Multimeter
Manufacturer : Sanwa
Model name : PM3
Power source : DC3V.