Troubleshooting & repair – Lincoln Electric INVERTEC SVM101-B User Manual
Page 70
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V300-I
TROUBLESHOOTING & REPAIR
7. Test for 0 VDC between leads 311 and 313 on
Protection Board.
a. If 0-1 VDC is present, the Protection Board is
OK. Go to step 8.
b. If 15 VDC is present, go to step 11.
F-40
F-40
OVERVOLTAGE PROTECTION DC TRIGGER CIRCUIT TEST (cont.)
FIGURE F.17 — PROTECTION BOARD TEST POINT
PROTECTION
L7915
306
313
275F
311
J8
J15
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