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| TROUBLESHOOTING & REPAIR | ||
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| OUTPUT TRANSISTOR REMOVAL AND REPLACEMENT (continued) | ||
| PROCEDURE |
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1. | Remove input power to the | 3. | Perform the Input Filter Capacitor Discharge | |
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| Procedure detailed earlier in this section. |
2. | Using a phillips head screwdriver, remove the case | 4. | Locate the output transistor. See Figure F.36. | |
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| wraparound cover. | ||
FIGURE F.36 OUTPUT TRANSISTOR LOCATION
Output
Transistor
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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 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.
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