Troubleshooting & repair – Lincoln Electric Invertec V205-T User Manual
Page 104
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.
6. Using a phillips head screwdriver, disconnect leads
7. Using a 5mm allen wrench, remove the output tran-
sistor mounting bolts.
8. Remove and replace the output transistor.
NOTE: Be careful not to bend the copper bus bars.
9. Apply a thin layer of heatsink compound to all con-
tact surfaces.
10. Replace the output transistor mounting bolts pre-
viously removed.
11. Reconnect leads 1, 2 & 3 previously removed.
12. Reconnect lead CN1.
13. Replace the case wraparound cover.
TROUBLESHOOTING & REPAIR
F-68
F-68
V205-T AC/DC
OUTPUT TRANSISTOR REMOVAL AND REPLACEMENT (continued)
Output
Transistor
FIGURE F.36 OUTPUT TRANSISTOR LOCATION