Lincoln Electric INVERTEC V145-S Service Manual page 24

TEST PROCEDURE
1. Remove main input power to the Invertec V145-S
2. Remove secondary plastic cover, using a star screw driver
3. Perform the Discharge Procedure
4. Viasually check for burned area on the Input Board. Solder side
5. Check with multimeter for continuity between "AC1" to " Point –A-" and "AC2" to "Point –B-"
6. Check the input rectifier bridge "D1"
7. Check Start resistance "R2" for 20 Ohms
AC1
Input rectifier
Bridge
Point
AC2
–B-
D1 1
1
R2 Start Resistor =
20 ohms
Point
–A-
2
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