8.Maintenance
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8.2 Thyristor(SCR)
This unit has one SCR element of output part.
It is normal status when the resistance between K and G is 10 to 100Ω during checking SCR
elements.
Refer to the below circuit diagram for accurate maintenance.
Assemble this unit as below circuit diagram. (Load indicator turns OFF)
When shorting TEST 1 at gate momentarily, open it to turn ON the load indicator.
When the load indicator does not turn ON, SCR elements are bad conditions.
LOAD
TEST1
9V
A
B
G
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