Hitachi RWM-(H)FSN3E, Руководство по обслуживанию

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12 Troubleshooting
SMGB0070 rev. 1 - 08/2011
406
Remove all the terminals of the transistor module before check. If items (a) to (d) are performing and the results are satis -
factory, the transistor module is normal. Measure it under 1kΩ range of a tester.
Do NOT use a digital tester.
a. By touching the + side of the tester to the P terminal
of transistor module and the - side of tester to U,
V and W of transistor module, measure the resis-
tance. If all the resistances are from 1 to 5kΩ, it is
normal.
b. By touching the - side of the tester to the P terminal
of transistor module and the + side of tester to U, V
and W of transistor module, measure the resistan-
ce. If all the resistances are greater than 100kΩ, it
is normal.
c. By touching the - side of the tester to the N terminal
of transistor module and the + side of tester to U,
V and W of transistor module, measure the resis-
tance. If all the resistances are from 1 to 5kΩ, it is
normal.
d. By touching the + side of the tester to the N terminal
of transistor module and the - side of tester to U, V
and W of transistor module, measure the resistan-
ce. If all the resistances are greater than 100kΩ, it
is normal.