8 Troubleshooting
308
SMGB0087 rev.0 - 12/2013
Diode module checking procedure
Outer appearance and internal circuit of diode module:
If items [1] – [4] are performed and the results are satisfactory, the diode module is normal.
Measure it under 1kΩ range of a tester.
N O T E
DO NOT use a digital tester.
1 By touching the + side of the tester to the + terminal of diode
module and the - side of tester to the ~ terminals (A) of the diode
module, measure the resistance. If all the resistances are from 5
to 50kΩ, it is normal.
2 By touching the - side of the tester to the + terminal of diode
module and the + side of tester to the ~ terminals (A) of the diode
module, measure the resistance. If all the resistances are greater
than 500kΩ, it is normal.
3 By touching the - side of the tester to the - terminal of diode
module and the + side of tester to the ~ terminals (A) of the diode
module, measure the resistance. If all the resistances are from 5
to 50kΩ, it is normal.
4 By touching the + side of the tester to the - terminal of diode
module and the - side of tester to the ~ terminals (A) of the diode
module, measure the resistance. If all the resistances are greater
than 500kΩ, it is normal.
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