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TROUBLESHOOTING AND REPAIR | ||
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OUTPUT TRANSISTOR REMOVAL AND REPLACEMENT (continued)
FIGURE F.36 – OUTPUT TRANSISTOR LOCATION
Output
Transistor
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PROCEDURE
1.Remove input power to the
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.
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.
