Fujitsu AUXB04GALH Service Manual page 194

SERVICE PARTS INFORMATION 11
3-Phase Diode Bridge
Check Point 1 : Appearance check
No fissures, breaks, damage, etc. at body and terminal section?
Is the rear of the body coated with silicone grease?
Are there no abnormalities at threaded parts (stripped threads, deformation, damage, etc.) ?
Check Point 2 : Electric check
In the 3-phase diode bridge single part state, set the tester to the "Resistance" mode,
and check for open/short between the following terminals.
Tester + side Tester - side
(red) (black)
Pin 1
Pin 2 Pin 4
Pin 3
Pin 1
Pin 5 Pin 2
Pin 3
Judge the result of as follows:
All 6 points shorted
1 or more points open
Set the tester to the "Resistance" mode, and check for open/short between the following terminals.
Tester + side Tester - side
(red) (black)
Pin 1
Pin 4 Pin 2
Pin 3
Pin 1
Pin 2 Pin 5
Pin 3
Judge the result of as follows:
All 6 points open
1 or more points shorted : Defective
: Normal
: Defective
: Normal
1 2
1 2
4
4
+ 4
04-124
3
3
5
5
Diode bridge
- 5