Service Manual

Table Of Contents

8. Troubleshooting

282

SMGB0079 rev.0 - 01/2013

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 mo-

dule 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.