3-Phase Diode Bridge; Appearance Check; Electric Check - Fujitsu Airstage VR-II Series Service Manual

SERVICE PARTS INFORMATION 9

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 "Diode" mode,
and measure the voltage value 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 several 0.3V to 0.7V
1 or more points under 0.1V or over load
Set the tester to the "Diode" mode, and measure the voltage value 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 over load
1 or more points except over load
Normal
Defective
+ 4
Normal
Defective
04-103
1 2 3
1 2 3
4 5
4 5
Diode bridge
- 5