(a) Resistance is measured when the + side of the multimeter
touches terminal
P of the transistor module and the - side of the
multimeter touches terminals U, V and W of the transistor module.
It is normal for all the resistances to be between 1 and 5 kΩ.
(b) Resistance is measured when the - side of the multimeter
touches terminal P of the transistor module and the + side of the
multimeter touches terminals U, V and W of the transistor module.
It is normal for all the resistances to be greater than 100 kΩ.
(c) Resistance is measured when the - side of the multimeter
touches terminal N of the transistor module and the + side of the
multimeter touches terminals U, V and W of the transistor module.
It is normal for all the resistances to be between 1 and 5 kΩ.
(d) Resistance is measured when the + side of the multimeter
touches terminal N of the transistor module and the - side of the
multimeter touches terminals U, V and W of the transistor module.
It is normal for all the resistances to be greater than 100 kΩ.
(3) Method for checking the diodes module (DM).
External appearance and internal circuit of diode module.
Procedure:
If
steps
(a) to (d) are carried out and the results are satisfactory, the diode module is normal. Measure with the multimeter
set under 1 kΩ range. Do not use a digital multimeter.
(a) Resistance is measured when the + side of the multimeter
touches the + terminal of the diode module and the - side of the
multimeter touches the ~ terminals (3 Nos.) of the diode module. It
is normal for all the resistances to be between 5 and 50 kΩ.
8 Troubleshooting
268
SMGB0065 rev. 1 - 12/2010
To Next Page
Loading...
