Lincoln Electric INVERTEC SVM161-A Service Manual page 108

F-68
OUTPUT TRANSISTOR REMOVAL AND REPLACEMENT (continued)
PROCEDURE
1. Remove input power to the V205-T.
2. Using a phillips head screwdriver, remove the
case wraparound cover.
3. Perform the Input Filter Capacitor Discharge
Procedure detailed earlier in this section.
4. Locate the output transistor. See Figure F.36.
5. Disconnect plug CN1 from the output transistor.
See Figure F.37.
6. Using a phillips head screwdriver, disconnect
leads 1, 2 & 3. See Figure F.37.
7. Using a 5mm allen wrench, remove the output
transistor mounting bolts.
8. Remove and replace the output transistor.
NOTE: Be careful not to bend the copper bus bars.
TROUBLESHOOTING AND REPAIR
FIGURE F.36 – OUTPUT TRANSISTOR LOCATION
INVERTEC® V205-T AC/DC™
Output
Transistor
9. Apply a thin layer of heatsink compound to all
contact surfaces.
10. Replace the output transistor mounting bolts
previously removed.
11. Reconnect leads 1, 2 & 3 previously removed.
12. Reconnect lead CN1.
13. Replace the case wraparound cover.
F-68